Proposed Splits/Lumps

AL Accepted lump
AS Accepted split
ENG English name change
EXT Extinct taxon
NEW Newly described taxon
PHY Phylogenetic issue
PL Proposed lump
PS Proposed split
SEQ Modification in linear sequence
SSP Subspecies issue
TAX Taxonomic or nomenclatural issue

This page provides a working list of Proposed Splits/Lumps (PS/PL) and Newly Described Species (NEW) that are candidates for addition to or deletion from the IOC World List. Accepted Splits (AS, green) will be finalized and added to the World List with updates twice yearly. Others (grey) will be retained as active candidates or deleted with the option of future reconsideration. Decisions through 2015 are available on a separate page.

Proposed Splits/Lumps IOC Version 14.2 (DRAFT)

Number
English Name Scientific Name Parent Parent (sci) Proposal
AS 14.2 Olive-capped Coua

Coua olivaceiceps

Red-capped Coua

Coua ruficeps

Olive-capped Coua Coua olivaceiceps is split from Red-capped Coua C. ruficeps based on  differences in plumage and vocalizations (del Hoyo & Collar 2014; HBW/BirdLife; Dowsett-Lemaire 2004).

AS 14.2

Mentawai Malkoha

Phaenicophaeus oeneicaudus

Chestnut-breasted Malkoha

Phaenicophaeus curvirostris

Mentawai Malkoha Phaenicophaeus oeneicaudus is split from Chestnut-breasted Malkoha P. curvirostris based on morphological differences (del Hoyo & Collar 2014; HBW/BirdLife; Eaton et al. 2021).

AS 14.2

Sulawesi Brush Cuckoo

Cacomantis virescens

Sunda Brush Cuckoo (formerly Rusty-breasted Cuckoo)

Cacomantis sepulcralis

Sulawesi Brush Cuckoo Cacomantis virescens is split from Cacomantis sepulcralis based on morphology and vocalizations (R.B. Payne, ms; Wu et al. 2022)

AS 14.2

Solomons Brush Cuckoo

Cacomantis addendus

(Australian) Brush Cuckoo

Cacomantis variolosus

Solomons Brush Cuckoo Cacomantis addendus is split from C. variolosus based on vocalizations and morphology (Wu et al. 2022).

AS 14.2

Manus Brush Cuckoo

Cacomantis blandus

(Australian) Brush Cuckoo

Cacomantis blandus

Manus Brush Cuckoo Cacomantis blandus is split from C. variolosus based on vocalizations and morphology (Wu et al. 2022).

AS 14.2

Western Yellow-billed Barbet

Trachyphonus goffinii

(Eastern) Yellow-billed Barbet

Trachyphonus purpuratus

Western Yellow-billed Barbet Trachyphonus goffinii (including togoensis) is split from (Eastern) Yellow-billed Barbet Trachyphonus purpuratus (including elgonensis) based on differences in morphology and deep mtDNA divergence (Moyle 2004; del Hoyo & Collar 2014; HBW/BirdLife).  

AS 14.2

Nendo Whistler

Pachycephala ornata

Vanikoro (formerly Temotu) Whistler

Pachycephala vanikorensis

Nendo Whistler Pachycephala ornata is split from Pachycephala vanikorensis on the basis mtDNA analysis (Jønsson et al. 2014) and differences in plumage.

AS 14.2

Utupua Whistler

Pachycephala utupuae

Vanikoro (formerly Temotu) Whistler

Pachycephala vanikorensis

Utupua Whistler Pachycephala utupuae is split from Pachycephala vanikorensis on the basis of striking  differences in female plumage.

AS 14.2

Babar Whistler

Pachycephala sharpei

Yellow-throated Whistler

Pachycephala macrorhyncha

Babar Whistler Pachycephala sharpei is split from Yellow-throated Whistler P. macrorhyncha based on deep mtDNA divergence, morphology, and distinct female plumage (Jønsson et al. 2014; Eaton et al. 2021). Resequence.

AS 14.2

Malaita Monarch

Symposiachrus malaitae

Solomons Monarch

Symposiachrus barbatus

Malaita Monarch Symposiachrus malaitae is split from Solomons Monarch S. barbatus based on differences in plumage supported by phylogenetic analysis (Andersen et al. 2015; del Hoyo & Collar 2016; HBW/BirdLife).

AS 14.2

Vella Lavella Monarch

Symposiachrus nigrotectus

Kolombangara Monarch

Symposiachrus browni

Vella Lavella Monarch Symposiachrus nigrotectus (including ganongae) is split from Kolombangara Monarch S. browni based on differences in plumage supported by phylogenetic analysis (Andersen et al. 2015; see del Hoyo & Collar 2016).

AS 14.2

Southern Nutcracker

Nucifraga hemispila

Spotted Nutcracker

Nucifraga caryocatactes

Southern Nutcracker Nucifraga hemispila (including macella, interdicta and owstoni) is split from Spotted Nutcracker on the basis of morphology and vocalizations supported by phylogenetic analysis (del Hoyo & Collar 2016; de Raad et al. 2022; HBW/BirdLife).

AS 14.2

Sulawesi Crow

Corvus celebensis

Slender-billed Crow

Corvus enca

Sulawesi Crow Corvus celebensis (including mangoli) is split from Slender-billed Crow C. enca based on deep mtDNA divergence and voice (Eaton et al. 2021).

AS 14.2

Sierra Madre Crow

Corvus sierramadrensis

Samar (Small) Crow

Corvus samarensis

Sierra Madre Crow Corvus sierramadrensis is split from Corvus samarensis based on vocal and morphological differences (Allen 2020).

AS 14.2

Angola Greenbul

Phyllastrephus viridiceps

White-throated Greenbul

Phyllastrephus albigularis

Angola Greenbul Phyllastrephus viridiceps is split from White-throated Greenbul P. albigularis based on differences in vocalizations and morphology (del Hoyo & Collar 2016; HBW/BirdLife).

AS 14.2

Red-throated Rock Martin

Ptyonoprogne rufigula

(Large) Rock Martin

Ptyonoprogne fuligula

Red-throated Rock Martin Ptyonoprogne rufigula (including bansoensis) is split from (Large) Rock Martin P. fuligula based on morphology supported by phylogenomic analysis (Brown 2019; del Hoyo & Collar 2016; HBW/BLI).

AS 14.2

Pacific Swallow

Hirundo javanica

Tahiti Swallow

Hirundo tahitica

Monotypic Tahiti Swallow Hirundo tahitica and polytypic Pacific Swallow H. javanica are split based on differences in morphology (del Hoyo & Collar 2016; HBW/BirdLife).

AS 14.2

Angola White-eye

Zosterops kasaicus

Northern Yellow White-eye

Zosterops senegalensis

Angola White-eye Zosterops kasaicus (including heinrichi and quanzae) is split from Northern Yellow White-eye Z. senegalensis on the basis of phylogenetic divergence (Martins et al. 2020). The specific epithet kasaicus Chapin, 1932 has priority over quanzae Meyer de Schauensee, 1933 [often attributed to 1932 but not actually published until 1933. (fide R. Dowsett.)].

AS 14.2

Northern Chestnut-breasted Wren

Cyphorhinus dichrous

(Southern) Chestnut-breasted Wren

Cyphorhinus thoracicus

Northern Chestnut-breasted Wren Cyphorhinus dichrous is split from (Southern) Chestnut-breasted Wren C. thoracicus based on strking vocal differences despite minor morphological difference (del Hoyo & Collar 2016; HBW/BirdLife).

AS 14.2

Gorgeous Sunbird

Cinnyris melanogastrus

Beautiful Sunbird

Cinnyris pulchellus

Gorgeous Sunbird Cinnyris melanogastrus is split from Beautiful Sunbird C. pulchellus based on parapatry with consistent differences in morphology (del Hoyo & Collar 2016; HBW/BirdLife).

AS 14.2

Grey-crowned Goldfinch

Carduelis caniceps

European Goldfinch

Carduelis carduelis

Grey-crowned Goldfinch Carduelis caniceps is split from European Goldfinch C. carduelis on the basis of difference in plumage, bill morphology, and voice (del Hoyo & Collar 2016; HBW/BirdLife).

PS 14.2

Maranon Sparrow

 Arremon nigriceps

Black-capped Sparrow

Arremon abeillei

Maranon Sparrow Arremon nigriceps is a proposed split from Black-capped Sparrow A. abeillei based on differences in plumage, vocalizations, and genetic divergence comparable to similar species pairs within the genus (del Hoyo & Collar 2016; HBW/BirdLife; Buainain et al 2022).

PS 14.2

Taczanowski's Brushfinch

Atlapetes taczanowskii

Slaty Brushfinch

Atlapetes schistaceus

Taczanowski's Brushfinch Atlapetes taczanowskii is a proposed split from Slaty Brushfinch A. schistaceus based on differences in morphology, vocalizations and mtDNA divergence (del Hoyo & Collar 2016; HBW/BirdLife; Sánchez-González et al. 2015).

Proposed Splits/Lumps IOC Version 14.1

Number
English Name Scientific Name Parent Parent (sci) Proposal
AS 7.1
Yellow-billed Egret
Ardea brachyrhyncha
Medium (Intermediate) Egret
Ardea intermedia
Yellow-billed Egret Ardea brachyrhyncha is split from Ardea intermedia based on differences in proportions and substantial differences in high breeding plumage (del Hoyo & Collar 2014; WGAC).

AS 7.1

Plumed Egret

Ardea plumifera

Medium (Intermediate) Egret

Ardea intermedia

Plumed Egret Ardea plumifera is split from Ardea intermedia based on differences in proportions and substantial differences in high breeding plumage (del Hoyo & Collar 2014; WGAC).

AS 14.1

Northern Black-throated Trogon

Trogon tenellus

(Amazonian) Black-throated Trogon

Trogon rufus

Northern Black-throated Trogon Trogon tenellus is split from T. rufus on the basis of deep genetic divergence combined with vocal and morphological differention (Dickens et al. 2021; SACC 921; WGAC). English name tentative.

AS 14.1

Choco Black-throated Trogon

Trogon cupreicauda

(Amazonian) Black-throated Trogon

Trogon rufus

Choco Black-throated Trogon Trogon cupreicauda is split from T. rufus on the basis of deep genetic divergence combined with vocal and morphological differention (Dickens et al. 2021; SACC 921; WGAC). English name tentative.

AS 14.1

Atlantic Black-throated Trogon

Trogon chrysochloros

(Amazonian) Black-throated Trogon

Trogon rufus

Atlantic Black-throated Trogon Trogon chrysochloros (including muriciensis) is split from T. rufus based on moderate genetic divergence combined with vocal and morphological differention (Dickens et al. 2021; SACC 921; WGAC). English name tentative.

AS 14.1

Eastern Dwarf Hornbill

Horizocerus granti

Black (Western) Dwarf Hornbill

Horizocerus hartlaubi

Horizocerus granti is split from Horizocerus hartlaubi on the basis of differences in plumage and bill morphology (del Hoyo & Collar 2014; HBW/BirdLife; WGAC).

AS 14.1

Eastern Long-tailed Hornbill

Horizocerus cassini

Western Long-tailed (White-crested) Hornbill

Horizocerus albocristatus

Monotypic Horizocerus cassini is split from essentially parapatric Horizocerus albocristatus on the basis of differences in plumage and bill markings (del Hoyo & Collar 2014; HBW/BirdLife).

AS 14.1

Rufous-backed Dwarf Kingfisher

Ceyx rufidorsa

Oriental (Black-backed) Dwarf Kingfisher

Ceyx erithaca

Rufous-backed Dwarf Kingfisher Ceyx rufidorsa is split from Ceyx erithaca. Recent genomic studies convincingly show that Ceyx rufidorsa is not a morph of Ceyx erithaca but rather is a genetically distinct taxon. Further, the polymorphism shown within Ceyx rufidorsa is likely due to an ancient introgression of genes rather than more recent, on-going, hybridization which is limited to a narrow zone where these two species meet in n peninsular Malaysia (Lim et al. 2010; Shakya et al. 2023).

AS 14.1

Blue-eared Barbet

Psilopogon cyanotis

Black-eared Barbet

Psilopogon duvaucelii

Psilopogon cyanotis is split from Psilopogon duvaucelii based on facial plumage and a narrow hybrid zone where they come in contact. The more widely distributed P. cyanotis assumes the English name "Blue-eared Barbet" while the more range restricted Psilopogon duvaucelii becomes "Black-eared Barbet". 

PL 14.1

Little Spotted Woodpecker

Campethera cailliautii

Little Green Woodpecker

Campethera maculosa

Campethera cailliautii and its three subspecies is a proposed lump with Campethera maculosa based on similar vocalizations, shallow genetic divergence, and hybridization at the contact zone (Prigogine 1988; Fuchs et al. 2017; WGAC 784). The English name of the lumped species is proposed as Green-backed Woodpecker).

AL 14.1

Siau Pitta, Sangihe Pitta

Erythropitta palliceps, Erythropitta caeruleitorques

Sulawesi Pitta

Erythropitta celebensis

Siau Pitta E. palliceps and Sangihe Pitta E. caeruleitorques were formerly treated as a full species (Irestedt et al. 2013; Collar et al. 2015). Treat as a subspecies of Sulawesi Pitta E. celebensis (Eaton et al. 2021).

PS 14.1

North Papuan Pitta

Erythropitta habenichti

(South) Papuan Pitta

Erythropitta macklotii

Proposed split to recognize Erythropitta habenichti as a full species rather than a subspecies of E. macklotii based on deep genetic differences (Irestedt et al. 2013, WGAC 881). However, morphological differences are weak (Collar et al. 2015; Pratt in litt.).

AS 14.1

Nicobar Hooded Pitta, Minahasa Hooded Pitta, Eastern Hooded Pitta, Biak Hooded Pitta

Pitta abbotti, Pitta forsteni, Pitta novaeguineae, Pitta rosenbergii

(Western) Hooded Pitta

Pitta sordida

The Hooded Pitta complex Pitta sordida s.l. is split based on morphology and vocalizations supported by genomic analysis (Allen 2020; Ericson et al. 2019; Eaton et al. 2021; HBW/BirdLife, WGAC).

AL 14.1

Northern Royal Flycatcher

Onychorhynchus mexicanus

Tropical (formerly Amazonian) Royal Flycatcher

Onychorhynchus coronatus

Northern Royal Flycatcher Onychorhynchus mexicanus (including fraterculus) was formerly split from O. coronatus (Stotz et al. 1996; BLI).  However, phylogenetic analyses reveal only shallow divergence from all forms except swainsoni (Harvey et al. 2020 ; Reyes et al. 2023), and vocalizations are indistinguishable from O. coronatus. Despite phenotypic distinctiveness from other forms within the O. coronatus radiation, mexicanus and fraterculus are better treated as subspecies of O. coronatus (WGAC 835).

AL 14.1

Pacific Royal Flycatcher

Onychorhynchus occidentalis

Tropical (formerly Amazonian) Royal Flycatcher

Onychorhynchus coronatus

Pacific Royal Flycatcher Onychorhynchus occidentalis was formerly split from O. coronatus (Stotz et al. 1996; BLI). However, phylogenetic analyses reveal only shallow divergence from all forms except swainsoni (Harvey et al. 2020 ; Reyes et al. 2023), and vocalizations are indistinguishable from O. coronatus. Despite phenotypic distinctiveness from other forms within the O. coronatus radiation, occidentalis is better treated as a subspecies of O. coronatus (WGAC 835).

AS 14.1 White-gorgeted Fantail

Rhipidura coultasi

White-winged (Cockerell’s) Fantail

Rhipidura cockerelli

White-gorgeted Fantail Rhipidura coultasi is split from Rhipidura cockerelli on the basis of pronounced differences in plumage and vocal differences suggested by the limited material available (Dutson 2011; HBW/BirdLife; WGAC).

AS 14.1

Guadalcanal Fantail

Rhipidura ocularis

Bougainville (Brown) Fantail

Rhipidura drownei

Guadalcanal Fantail Rhipidura ocularis is split from Brown (now Bougainville) Fantail Rhipidura drownei based on pronounced differences in vocalizations and differences in plumage (HBW/BirdLife; WGAC). 

AS 14.1

Vanuatu Streaked Fantail

Rhipdura spilodera

(New Caledonian) Streaked Fantail

Rhipidura verreauxi

Vanuatu Streaked Fantail Rhipdura spilodera is split from other species within the Streaked Fantail species complex based on differences in morphology and vocalizations (HBW/BirdLife, WGAC).  

AS 14.1

Fiji Streaked Fantail

Rhipidura layardi

(New Caledonian) Streaked Fantail

Rhipidura verreauxi

Fiji Streaked Fantail Rhipidura layardi (including rufilateralis and erythronota) is split from other species within the Streaked Fantail species complex based on differences in morphology and vocalizations (HBW/BirdLife, WGAC).  The three Fijian subspecies may need further splitting into 2 or 3 species pending genomic studies and denser bioacoustic sampling. 

AS 14.1

Supertramp Fantail

Rhipidura semicollaris

Arafura Fantail

Rhipidura dryas

Supertramp Fantail Rhipidura semicollaris (including all subspecies except dryas and streptophora) is split from Arafura Fantail R. dryas on the basis of vocalizations (Eaton et al. 2021; WGAC).

AS 14.1

Gilolo Fantail, Louisiade Fantail, Santa Cruz Fantail, Micronesian Rufous Fantail, Solomons Rufous Fantail  

Rhipidura torrida, Rhipidura louisiadensis, Rhipidura melanolaema, Rhipidura versicolor, Rhipidura rufofronta

(Australian) Rufous Fantail

Rhipidura rufifrons

Five additional species are split from the Rufous Fantail species complex on the basis of genetic divergence supported by differences in plumage and voice (Klicka et al. 2023; WGAC). 

AS 14.1

Glissando Babbler, Leaflitter Babbler

Pellorneum saturatum, Pellorneum poliogene

 Short-tailed Babbler (Mourning Babbler)

Pellorneum malaccense

Split Glissando Babbler Pellorneum saturatum and Leaflitter Babbler Pellorneum poliogene from Pellorneum malaccense based on pronounced vocal and genetic differences (Garg et al. 2021; Eaton et al. 2021).

AS 14.1

Bornean Swamp Babbler

Pellorneum macropterum

 White-chested Babbler (Malayan Swamp Babbler)

Pellorneum rostratum

Pellorneum macropterum Bornean Swamp Babbler is split from P. rostratum Malayan Swamp Babbler (formerly White-chested Babbler) based on vocal and genetic differences (Cros et al. 2020; Eaton et al. 2021).

AS 14.1

Pink-breasted Flowerpecker

Dicaeum keiense

Mistletoebird

Dicaeum hirundinaceum

Pink-breasted Flowerpecker Dicaeum keiense (including fulgidum) is split from Mistletoebird Dicaeum hirundinaceum based on significant differences in morphology (Eaton et al. 2021; HBW/BirdLife; WGAC)

AS 14.1

Cambodian Flowerpecker, Sumatran Flowerpecker, Fire-throated Flowerpecker

Dicaeum cambodianum, Dicaeum beccarii, Dicaeum luzoniense

Fire-breasted Flowerpecker

Dicaeum ignipectus

Dicaeum cambodianum, Dicaeum beccarii, and Dicaeum luzoniense (including bonga and apo) are split from Fire-breasted Flowerpecker D. ignipectus based on substantial, non-clinal differences in plumage (HBW/BirdLife, WGAC).

AS 14.1

Ornate Sunbird, Palawan Sunbird, Sahul Sunbird, Tukangbesi Sunbird, Flores Sea Sunbird, South Moluccan Sunbird, Mamberamo Sunbird

Cinnyris ornatus,  Cinnyris aurora, Cinnyris frenatus, Cinnyris infrenatus, Cinnyris teysmanni, Cinnyris clementiae, Cinnyris idenburgi

Garden (Olive-backed) Sunbird

Cinnyris jugularis

Cinnyris jugularis is split into eight species based on a combination of bioacoustic differences, mtDNA data (Lohman et al. 2010; Marcaigh et al. 2022) and, in many instances, substantial differences in plumage.

AL 14.1

Luzon Sunbird, Bohol Sunbird

Aethopyga jefferyi, Aethopyga decorosa

Metallic-winged Sunbird

Aethopyga pulcherrima

Luzon Sunbird A. jefferyi and Bohol Sunbird A. decorosa are relumped (14.1) with Metallic-winged Sunbird A. pulcherrima. Despite deep mtDNA divergence, supplemented by a limited number of nuclear intron markers, plumage differences are minute and vocal differences are not apparent in the limited number of individuals examined (HBW/BirdLife; WGAC 863).

Proposed Splits/Lumps IOC Version 13.2

Number
English Name Scientific Name Parent Parent (sci) Proposal
PL 13.2

White-backed Stilt

Himantopus melanurus

Black-necked Stilt

Himantopus mexicanus

Relump Himantopus melanurus with H. mexicanus to align with AOS Classification Committees. Insufficient evidence to support a split without a better understanding of their intergrade zone in Peru and/or more detailed genetic analysis.

PL 13.2

Balearic Shearwater

Puffinus mauretanicus

Yelkouan Shearwater

Puffinus yelkouan

Balearic Shearwater Puffinus mauretanicus is a proposed lump with Yelkouan Shearwater Puffinus yelkouan based on evidence of frequent interbreeding and the presence of numerous mixed colonies (e.g. Genovart et al. 2012), and recent rigorous genomic studies that demonstrate minimal divergence and lack of monophyly (Obiol et al. 2022, Obiol et al. 2023). The merged species, Puffinus yelkouan is assigned the English name Mediterranean Shearwater. 

PL 13.2

Red-chested Goshawk

Accipiter toussenelii

African Goshawk

Accipiter tachiro

Red-chested Goshawk Accipiter toussenelii is a  proposed lump with African Goshawk A. tachiro based on overlapping morphological features and similarities in vocalizations and behavior, despite DNA divergence (Dowsett & Dowsett-Lemaire 1991, 1993; Louette & Borrow 2010. See Bremen et al. 2012).

AS 13.2

American Goshawk

Accipiter atricapillus

Eurasian Goshawk (Northern) Goshawk

Accipiter gentilis

American Goshawk Accipiter atricapillus (including laingi and apache) is split from Eurasian (Goshawk) Northern Goshawk A. gentilis based on differences in vocalizations, morphology, and mitochondrial and genomic DNA divergence (Geraldes et al. 2019; Kunz et al. 2019; Sangster 2022).

AL 13.2

Vermiculated Screech Owl

Megascops vermiculatus

Middle American Screech Owl

Megascops guatemalae

Vermiculated Screech Owl Megascops vermiculatus is a proposed lump (13.2) with Middle American Screech Owl M. guatemalae based on vocal similarities and distribution, pending further analyses (NACC; Clements).

AS 13.2

West African Pied Hornbill

Lophoceros semifasciatus

Congo (African) Pied Hornbill

Lophoceros fasciatus

West African Pied Hornbill Lophoceros semifasciatus is split from Congo (African) Pied Hornbill L. fasciatus based on differences in morphology with only a narrow hybrid zone in se Nigeria (del Hoyo & Collar 2014; HBW/BirdLife).

AL 13.2

White-chested Tinkerbird

Pogoniulus makawai

Yellow-rumped Tinkerbird

Pogoniulus bilineatus

White-chested Tinkerbird P. makawai, known only from the unique type specimen, was previously treated as a species based on its distinctive morphology (Collar & Fishpool 2006, HBW/BirdLife).  But the preponderance of evidence points to it being better treated more likely as an aberrent individual of Yellow-rumped Tinkerbird P. bilineatus (Short & Horne 2001). Available mtDNA data demonstrate it to be deeply embedded within the P. bilineatus complex, which is also supported by limited nDNA results (Kirschel et al. 2018).

AL 13.2

Black-dotted Piculet

Picumnus nigropunctatus

Scaled Piculet

Picumnus squamulatus

 "Black-dotted Piculet" Picumnus nigropunctatus is treated as a junior synonym of P. s. obsoletus following Rêgo et al (2014) and SACC. But whether P. s. obsoletus itself should be elevated to full species status requires a more comprehensive re-assessment and understanding of the complex and confusing Picumnus taxonomy in this region.

PL 13.2

Velasquez's Woodpecker

Melanerpes santacruzi

Golden-fronted Woodpecker

Melanerpes aurifrons

Velasquez's Woodpecker Melanerpes santacruzi was previously split from Golden-fronted Woodpecker; including all ssp. except M. a. aurifrons (García-Trejo et al. 2009). Velasquez's Woodpecker is re-lumped (13.2) with Golden-fronted Woodpecker on the basis of more recent genomic and ecological analyses (Llanos-Quevedo et al. 2022; NACC 2023-C-5).

AS 13.2

Necklaced Woodpecker

Dryobates pernyii

Scarlet-breasted Woodpecker

Dryobates cathpharius

Necklaced Woodpecker Dryobates pernyii (including tenebrosus and innixus) is split from Crimson-naped (Crimson-breasted) Woodpecker Dryobates cathpharius based on substantial differences in plumage, particularly the distributon of red on the crown and nape and a distinct necklace on the upper breast in D. pernyii (del Hoyo & Collar 2014; BirdLife). 

PS 13.2 Guatemalan Flicker

Colaptes mexicanoides

Northern Flicker

Colaptes auratus

Guatemalan Flicker Colaptes mexicanoides is a proposed split from Northern Flicker C. auratus based on genetic, phenotypic, and apparent vocal divergence (del Hoyo & Collar 2014; Manthey et al. 2017; HBW/BirdLife; NACC 2017-C-4 declined).

AL 13.2

Scaly-breasted Woodpecker

Celeus grammicus

Waved Woodpecker

Celeus undatus

Scaly-breasted Woodpecker Celeus grammicus (including verreauxii, subcervinus and latifasciatus) is lumped with Waved Woodpecker Celeus undatus due to their lack of diagnostic vocal, plumage, or genetic differences (Benz & Robbins, 2011; Sampaio et al. 2018; HBW/BirdLife).

AS 13.2

Splendid Woodpecker

Campephilus splendens

Crimson-bellied Woodpecker

Campephilus haematogaster

Splendid Woodpecker Campephilus splendens is split from  Crimson-bellied Woodpecker C. haematogaster on several differences in plumage, as well as different calls and pattern of drumming (Ridgely & Greenfield 2001; del Hoyo & Collar 2014; Donegan et al. 2015; HBW/BirdLife).

AS 13.2

Buff-rumped Woodpecker

Meiglyptes grammithorax

Zebra Woodpecker

Meiglyptes tristis

Meiglyptes grammithorax (Buff-rumped Woodpecker) is split from M. tristis (Zebra Woodpecker) based on consistent morphologic differences (del Hoyo & Collar 2014; BirdLife; contra Eaton et al. 2021). Note English name "Buff-rumped Woodpecker" is assigned to the split taxon. 

AS 13.2

Citron-crested Cockatoo

Cacatua citrinocristata

Yellow-crested Cockatoo

Cacatua sulphurea

Citron-crested Cockatoo Cacatua citrinocristata is split from C. sulphurea based on morphological differences (Eaton et al. 2021; HBW/BirdLife).

AL 13.2

Tres Marias Amazon

Amazona tresmariae

Yellow-headed Amazon

Amazona oratrix

Relump Tres Marias Amazon Amazona tresmariae with Yellow-headed Amazon Amazona oratrix following NACC, HBW/BirdLife. Insufficient genetic, vocal and morphologic evidence to support the original split in light of rigorous re-evaluation of original and more recent publications. The paraphyly shown in the mtDNA study of Eberhard & Bermingham (2004) is not reproduced in Smith et al. (2022) which show oratrix and tresmariae to be sister taxa.

AL 13.2

Northern Mealy Amazon

Amazona guatemalae

(Southern) Mealy Amazon

Amazona farinosa

Northern Mealy Amazon Amazona guatemalae (including virenticeps) was split from [Southern] Mealy Amazon A. farinosa on the basis of deep mtDNA divergence and differences in morphology (Wenner et al. 2012; HBW Alive; del Hoyo & Collar 2014; HBW/BirdLife). But despite their deep mtDNA divergence, the two Mealy Parrot species apparently demonstrate a broad morphological intergrade zone in Panama, and are not vocally distinct (Hellmich et al. 2021). See NACC 2023-A-16.

PL 13.2

Lord Howe Parakeet

Cyanoramphus subflavescens

Norfolk Parakeet

Cyanoramphus cookii

Extinct Lord Howe Parakeet Cyanoramphus subflavescens is a proposed lump with Norfolk Parakeet C. cookii based on the close zoogeographic connections between these two islands and simlilar morphology (Christidis & Boles 2008).

PL 13.2

Macquarie Parakeet

Cyanoramphus erythrotis

Red-crowned Parakeet

Cyanoramphus novaezelandiae

Extinct Macquarie Parakeet Cyanoramphus erythrotis is a proposed lump with Cyanoramphus novaezelandiae based on similar morphology and no compelling evidence that supports a split (Dickinson & Remsen 2013; Schodde pers. comm.). But see Chambers & Boon (2005).

AL 13.2

Western Ground Parrot

Pezoporus flaviventris

(Eastern) Ground Parrot

Pezoporus wallicus

Western Ground Parrot was split from [Eastern] Ground Parrot based on deep mtDNA divergence (Murphy et al. 2010). But morphological differences between the two forms are minimal, and the split recognized by Murphy was based on a single mitochondrial gene. Both HBW/BirdLife and Clements treat them as conspecific.

AS 13.2

Grey-lored Broadbill

Serilophus rubropygius

Silver-breasted Broadbill

Serilophus lunatus

Grey-browed Broadbill Serilophus rubropygius is split from Silver-breasted Broadbill Serilophus lunatus based on significant differences in morphology and parapatry without evidence of intergradation (Dekker & Dickinson 2000; del Hoyo & Collar 2016; HBW/BirdLife). See also Rasmussen & Anderton (2012).

AS 13.2

Boyaca Antpitta, Atuen Antpitta

Grallaria alticola, Grallaria atuensis

Tawny Antpitta

Grallaria quitensis

Boyaca Antpitta Grallaria alticola and Atuen Antpitta G. atuensis are split from Tawny Antpitta G. quitensis on the basis of morphology and vocalizatons (HBW/BirdLife).

AS 13.2

Little Long-tailed Woodcreeper

Deconychura typica

(Northern) Long-tailed Woodcreeper

Deconychura longicauda

Little Long-tailed Woodcreeper Deconychura typica (including darienensis and minor) is split from the "Long-tailed Woodcreeper" complex D. longicauda s.l., based on morphological and vocal differences supported by genetic analysis (Barbosa 2010; del Hoyo & Collar 2016; Greeney et al. 2023; HBW/BirdLife).

AS 13.2

Southern Long-tailed Woodcreeper

Deconychura pallida

(Northern) Long-tailed Woodcreeper

Deconychura longicauda

Southern Long-tailed Woodcreeper Deconychura pallida (including connectens and zimmeri) is split from the "Long-tailed Woodcreeper" complex, based on morphological and vocal differences supported by genetic analysis (Barbosa 2010; del Hoyo & Collar 2016; Greeney et al. 2023; HBW/BirdLife). Species epithet pallida, simultaneously published with connectens, is awarded precedence by first revisor action (del Hoyo & Collar 2016).

AL 13.2

Brigida's Woodcreeper

Hylexetastes brigidai

Uniform Woodcreeper

Hylexetastes uniformis

Treated as a subspecies of Hylexetastes uniformis based on genetic analysis supported by similarity of plumage and vocalizations (Azuaje‐Rodríguez et al. 2020; SACC 897). 

AL 13.2

Tschudi's Woodcreeper

Xiphorhynchus chunchotambo

Ocellated Woodcreeper

Xiphorhynchus ocellatus

Tschudi's Woodcreeper Xiphorhynchus chunchotambo was split from X. ocellatus in v 1.6 (Aleixo 2002; Marantz et al. 2003). But the deep mtDNA divergence which contributed to the decision to retain the split of X. chunchotambo is equally shared by ssp. beauperthuysii which was not split at the time (Sousa-Neves et al. 2013). Tentatively relump with X. ocellatus following SACC 600 for lack of clarity regarding the considerable vocal and genetic variation within this complex.

AS 13.2

Tapajos Scythebill, Xingu Scythebill

Campylorhamphus probatus, Campylorhamphus multostriatus

Curve-billed Scythebill

Campylorhamphus procurvoides

Tapajos Scythebill Campylorhamphus probatus (including cardosoi) and Xingu Scythebill Campylorhamphus multostriatus are split from Curve-billed Scythebill C. procurvoides based on phylogenetic analysis and vocalizations (Aleixo et al. 2013; Sousa-Neves et al. 2013; HBW/BirdLife).

AS 13.2

Plain Xenops

Xenops genibarbis

White-throated Xenops

Xenops minutus

Polytypic Xenops genibarbis (ten subspecies) is a proposed split from monotypic Xenops minutus based on morphological, vocal, and genetic differences (Harvey & Brumfield 2015, del Hoyo & Collar 2016; HBW/BirdLife). This polytypic species, with the largest range, retains the English name Plain Xenops.

AL 13.2

Puna Canastero

Asthenes sclateri

Streak-backed Canastero

Asthenes wyatti

Puna Canastero Asthenes sclateri is lumped with Streak-backed Canastero Asthenes wyatti. Morphological and reported vocal differences are slight and there is a zone of intergradation in se Peru and nw Bolivia (del Hoyo & Collar 2016; HBW/BirdLife)

AS 13.2

Fawn-throated Foliage-gleaner

Automolus cervinigularis

Ochre-throated (Buff-throated) Foliage-gleaner

Automolus ochrolaemus

Fawn-throated Foliage-gleaner Automolus cervinigularis (including hypophaeus) is split from Ochre-throated (Buff-throated) Foliage-gleaner A. ochrolaemus based on genetic analysis (Smith et al. 2014; Schultz et al. 2017) and vocal differences.

AS 13.2

Vilcabamba Spinetail

Cranioleuca weskei

Marcapata Spinetail

Cranioleuca marcapatae

Vilcabamba Spinetail Cranioleuca weskei is split from Cranioleuca marcapatae based on differences in plumage and, perhaps, vocalizations (del Hoyo & Collar 2016; HBW/BirdLife).

AS 13.2

Araguaia Spinetail

Synallaxis simoni

White-lored Spinetail

Synallaxis albilora

Araguaia Spinetail Synallaxis simoni is split from White-lored Spinetail S. albilora on the basis of differences in plumage and vocalizations (Boesman 2016; HBW/BirdLife).

AS 13.2

Western Olivaceous Flatbill

Rhynchocyclus aequinoctialis

(Eastern) Olivaceous Flatbill

Rhynchocyclus olivaceus

Western Olivaceous Flatbill Rhynchocyclus aequinoctialis (including bardus, mirus, jelambianus, tamborensis, flavus and cryptus) is split from (Eastern) Olivaceous Flatbill R. olivaceus on the basis of bioacoustics and sympatry in western Amazonia supported by genetic analysis (HBW/BirdLife; Simões et al. 2021). 

AL 13.2

Cordilleran Flycatcher

Empidonax occidentalis

Pacific-slope Flycatcher

Empidonax difficilis

Pacific-slope Flycatcher Empidonax difficilis and Cordilleran Flycatcher E. occidentalis (including hellmayri) are re-lumped, restoring the original name Western Flycatcher Empidonax difficilis to the recombined species. The two forms demonstrate extensive hybridization in a broad contact zone in w Canada and the northern western USA and lack consistent vocal, genomic and morphological differences (Rush et al. 2009; lack et al. 2019; Hopping 2022; Chesser et al. 2023). 

AS 13.2

Cryptic Becard

Pachyramphus salvini

Black-and-white Becard

Pachyramphus albogriseus

Cryptic Becard Pachyramphus salvini is split from Black-and-white Becard P. albogriseus on the basis of phylogenetics, morphology and vocalizatons. Monotypic. Includes guayaquilensis (Musher et al. 2023; SACC 955).

AS 13.2

Short-tailed Drongo

Dicrurus striatus

Balicassiao

Dicrurus balicassius

Short-tailed Drongo Dicrurus striatus (including samarensis) is a proposed split from Balicassiao D. balicassius on the basis of distinctive morphology despite shallow genetic divergence in the phylogenic study of Shakya et al. (2020). (Allen 2020; HBW/BirdLife).

AL 13.2

Fanti Drongo

Dicrurus atactus

Velvet-mantled Drongo

Dicrurus modestus

Fanti Drongo D. atactus was previously split from Velvet-mantled Drongo D. modestus complex following Fuchs et al. (2018). But the genetic divergence is shallow and Dicrurus atactus intergrades with D. modestus coracinus in sw Nigeria and Cameroon (Rocamora & Yeatman-Berthelot 2009). Treat as a subspecies of Velvet-mantled Drongo (del Hoyo & Collar 2016; BirdLife).

AL 13.2

Glossy-backed Drongo

Dicrurus divaricatus

Fork-tailed Drongo

Dicrurus adsimilis

Glossy-backed Drongo D. divaricatus (including lugubris) was formerly split from the Fork-tailed Drongo species complex (D. adsimilis s.l.) based on slight differences in plumage and molecular analysis by Fuchs et al. (2017) which showed a closer relationship with forest-dwelling D. m. atactus. But this is less clear in a subsequent paper by Fuchs et al. (2018) which associates divaricatus, at least in part, with the other African savanna species which accords with ecological and other observations. Further, D. d. divaricatus and D. a. fugax appear to intergrade in n Uganda and Kenya (e.g. Zimmerman et al. 1996; del Hoyo & Collar 2016). Relump Dicrurus divaricatus with Dicrurus adsimilis following del Hoyo & Collar 2016 and BirdLife.

AL 13.2

Western Square-tailed Drongo

Dicrurus occidentalis

Sharpe's Drongo

Dicrurus sharpei

Western Square-tailed Drongo Dicrurus occidentalis was formerly split from Dicrurus ludwigii as a new species (9.1) based on genetic evidence which place it sister to D. sharpei (Fuchs et al., 2018). Subsequently, D. occidentalis has been shown to show no significant morphological or vocal differences from Dicrurus sharpei, despite its genetic divergence, and is lumped with that species (Fishpool et al. 2021).

AS 13.2

Black-and-crimson Oriole

Oriolus consanguineus

Javan Oriole

Oriolus cruentus

Polytypic Black-and-crimson Oriole Oriolus consanguineus (including malayanus and vulneratus) is a split from monotypic Oriolus cruentus (renamed Javan Oriole) based on deep genetic diverence and vocal differences (Jønsson et al. 2019; Eaton et al. 2021; HBW/BirdLife).

AS 13.2

Sangihe Golden Bulbul, Togian Golden Bulbul, Banggai Golden Bulbul, Sula Golden Bulbul, Halmahera Golden Bulbul, Obi  Golden Bulbul 

Hypsipetes platenae, Hypsipetes aureus, Hypsipetes harterti, Hypsipetes longirostris, Hypsipetes chloris, Hypsipetes lucasi

Northern Golden Bulbul

Hypsipetes longirostris s.l.

The Northern Golden Bulbul complex Hypsipetes longirostris s.l. is split into six species on the basis of differences in plumage and vocalizations (Collar et al. 2013; Eaton et al. 2021; del Hoyo & Collar 2016; HBW/BirdLife).

AS 13.2

Pale-eyed Bulbul

Pycnonotus davisoni

Stripe-throated Bulbul

Pycnonotus finlaysoni

Pale-eyed Bulbul Pycnonotus davisoni is split from Stripe-throated Bulbul P. finlaysoni based on differences in morphology and sympatry in se Myanmar (Tenasserim) (HBW/BirdLife; Limparungpatthanakij 2022).

AL 13.2

Desert Whitethroat, Hume's Whitethroat

Curruca minula, Curruca althaea

Lesser Whitethroat

Curruca curruca

Tentatively lump Desert Whitethroat Curruca minula (including margelanica) and Hume's Whitethroat C. althaea with Lesser Whitethroat C. curruca following Clements, HBW/BirdLife, Dickinson & Christidis (2014), and Shirihai & Svensson (2018) pending more comprehensive genomic and vocal analyses.

AL 13.2

Itombwe Flycatcher

Muscicapa itombwensis

Chapin's Flycatcher

Muscicapa lendu

Treat Itombwe Flycatcher as a subspecies of Chapin's Flycatcher M. lendu following other major world bird lists (Dickinson & Christidis 2014; HBW/BirdLife; Clements).

AL 13.2

Greyish-crowned Leafbird

Chloropsis lazulina

Orange-bellied Leafbird

Chloropsis hardwickii

Greyish-crowned Leafbird Chloropsis lazulina (including melliana) was previously split from C. hardwickii based on phylogenetic divergence and plumage differences (Moltesen et al. 2012; HBW/BLI). However, the split of C. lazulina may have been premature, as there appears to be a broad intergradation zone between the two taxa. Relump with Chloropsis hardwickii pending further studies.

AS 13.2

New Hanover Mannikin

Lonchura nigerrima

Mottled (Hunstein's) Mannikin

Lonchura hunsteini

New Hanover Mannikin Lonchura nigerrima is split from parapatric L. hunsteini on the basis of differences comparable to other parapatric and/or sympatric Lonchura species in the region (Wolters 1979; Sibley & Monroe 1990; Clements).

AS 12.1

African Chaffinch, Azores Chaffinch, Madeira Chaffinch, Canary Islands Chaffinch 

Fringilla spodiogenys, Fringilla moreletti, Fringilla maderensis, Fringilla canariensis

Eurasian (Common) Chaffinch

Fringilla coelebs

Common Chaffinch Fringilla coelebs is split into five species based on genomic and morphological differences (Recuerda et al. 2021). English name "Eurasian" Chaffinch for F. coelebs s.s. is provisional.

AS 13.2

Puerto Rican Euphonia, Lesser Antillean Euphonia

Chlorophonia sclateri, Chlorophonia flavifrons

Hispaniolan (Antillean) Euphonia

Chlorophonia musica

Antillean Euphonia complex (Chlorophonia musica s.l.) is split into three species based on significant differences in plumage (HBW/BLI; Chesser et al. 2023).

AL 13.2

Vincent's Bunting

Emberiza vincenti

Cape Bunting

Emberiza capensis

Vincent's Bunting Emberiza vincenti is a relict split from Gill & Wright (2006) based on Fry & Keith (2004).  But it is generally regarded as the terminal form in a cline of subspecies with increasingly dark underparts within Emberiza capensis (Ryan 2018). Song and call notes of vincenti are identical to those of other subspecies (Dowsett-Lemaire & Dowsett 2006). Treat as a subspecies of E. capensis.

PL 13.2

Scarlet-rumped Cacique

Cacicus microrhynchus

Subtropical Cacique

Cacicus uropygialis

Cacicus microrhynchus is currently split from C. uropygialis based on differences in vocalizations and morphology (Jaramillo & Burke 1999; Ridgely & Greenfield 2001; Hilty 2003). But the split has been closely rejected in SACC 73, NACC 2023-A-8 and by WGAC due to insufficient supporting information. Currently under re-evaluation in SACC 946.

AL 13.2

Northern Mountain Cacique

Cacicus leucoramphus

(Southern) Mountain Cacique

Cacicus chrysonotus

Northern Mountain Cacique Cacicus leucoramphus (including peruvianus) was formerly split from Southern Mountain Cacique C. chrysonotus (Jaramillo & Burke 1999; Ridgely & Greenfield 2001; Hilty 2003) based in morphologic differences and evidence of deep genetic divergence (Powell et al. 2014). But the split is rejected by lack of sampling in the contact zone (SACC 616) and by evidence of phenotypic introgression in Ayacucho, Peru (Hosner et al. 2015).

AL 13.2

Ochre Oriole

Icterus fuertesi

Orchard Oriole

Icterus spurius

Ochre Oriole Icterus fuertesi was split from I. spurius primarily based on differences in plumage, migratory behavior, and mt DNA divergence (Baker et al. 2003; Kiere et al. 2007). But the mt DNA divergence is minor in those studies, and vocalizations overlap (Hagemeyer et al. 2012; Sturge et al. 2016a). Further, mtDNA and nuclear DNA analysis failed to show reciprocal monophyly or population structure, respectively (Sturge et al. 2016b).

AS 13.2

Lemon-rumped Tanager

Ramphocelus icteronotus

Flame-rumped Tanager

Ramphocelus flammigerus

Limited hybridization between Ramphocelus icteronotus and R. flammigerus is the basis for lumping them (Isler & Isler 1987; Ridgely & Tudor 1989; Sibley & Monroe 1990). Hybrid zone considered narrow and moving (Ridgely & Greenfield 2001; Morales-Rozo et al. 2015). SACC proposal to split the two species did not pass, as there is little genetic differentiation, and the hybridization zone is broader than previously believed. Treating the two taxa as conspecific aligns with Dickinson & Christidis (2014), Clements, SACC 948 and NACC 2023-A-7.

AS 13.2

Grand Cayman Bullfinch

Melopyrrha taylori

Cuban Bullfinch

Melopyrrha nigra

Grand Cayman Bullfinch Melopyrrha taylori is split from Cuban Bullfinch M. nigra based on differences in morphology and vocalizations  (Garrido et al. 2014, del Hoyo & Collar 2016; HBW/BirdLife).

NEW Ibera Seedeater

Sporophila iberaensis

Sp. nov.: Di Giacomo & Kopuchian, 2016. Recognition as specifically distinct supported by distinctive plumage and vocalizations, unique breeding habitat, and genomic data (Galluppi-Selich et al. 2018; Browne et al. 2021; Turbek et al. 2021; SACC 953; HBW/BirdLife).

AS 13.2

Streaked Dacnis

Xenodacnis petersi

Tit-like Dacnis

Xenodacnis parina

Streaked Dacnis Xenodacnis petersi (including bella) is split from X. parina based on morphology and voice (del Hoyo & Collar 2016; Boesman 2016; Hilty et al. 2022). 

AS 13.2

Carriker's  Mountain Tanager, Streak-crowned Mountain Tanager

Dubusia carrikeri, Dubusia stictocephala

Buff-breasted Mountain Tanager

Dubusia taeniata

Carriker's  Mountain Tanager Dubusia carrikeri and Streak-crowned Mountain Tanager Dubusia stictocephala are splt from D. taeniata on the basis of differences in plumage and vocalizations (Boesman 2016; del Hoyo & Collar 2016; HBW/BirdLife).

Proposed Splits/Lumps IOC Version 13.1

Number
English Name Scientific Name Parent Parent (sci) Proposal

AS 13.1

White-throated Piping Guan

Pipile grayi

Blue-throated Piping Guan

Pipile cumanensis

White-throated Piping Guan Pipile grayi is a proposed split from Blue-throated Piping Guan P. cumanensis on the basis of differences plumage, the color and shape of the wattle, and limited hybridization in their zones of contact in se Peru (del Hoyo & Collar 2014; HBW/BirdLife. See Vaurie 1967).

AS 13.1

Western Crested Guineafowl, Southern Crested Guineafowl

Guttera verreauxi, Guttera edouardi

(Eastern) Crested Guineafowl

Guttera pucherani

Western Crested Guineafowl Guttera verreauxi (including sclateri) and Southern Crested Guineafowl Guttera edouardi (including barbata) are split from G. pucherani (s.s and s.l.) on the basis of differences in color of facial and neck skin, morphology of the hood, and vocalizations (del Hoyo & Collar 2014; HBW/BirdLife.

AS 13.1

Bornean Crestless Fireback

Lophura pyronota

(Malayan) Crestless Fireback

Lophura erythrophthalma

Bornean Crestless Fireback Lophura pyronota is a proposed split from Malayan Crestless Fireback L. erythrophthalma based on substantial differences in plumage (del Hoyo & Collar 2014; Eaton et al. 2021; HBW/BirdLife).

AS 13.1

Malayan Crested Fireback

Lophura rufa

(Bornean) Crested Fireback

Lophura ignita

Malayan Crested Fireback Lophura rufa is a proposed split from Bornean Crested Fireback L. ignita (including nobilis) based on substantial differences in plumage (del Hoyo & Collar 2014; Eaton et al. 2021; HBW/BirdLife). Treat as monotypic. Includes "macartneyi" of se Sumatra regarded as a hybrid swarm between ignita and rufa (Collar & Prŷs-Jones 2014; Eaton et al. 2021;  McGowan et al. 2022; HBW/BirdLife).

AS 13.1

Sabah Partridge

Tropicoperdix graydoni

Chestnut-necklaced Partridge

Tropicoperdix charltonii

Sabah Partridge Tropicoperdix graydoni is a proposed split from Tropicoperdix charltonii (including atjenensis) based on significant differences in plumage and soft part coloration (del Hoyo & Collar 2014, Eaton et al. 2021; HBW/BirdLife).

AS 13.1

Whyte's Francolin

Scleroptila whytei

Shelley's Francolin

Scleroptila shelleyi

Whyte's Francolin Scleroptila whytei is a proposed split from Shelley's Francolin Scleroptila shelleyi based on significant differences in plumage and mtDNA divergence (del Hoyo & Collar 2014; Mandiwana-Neudani et al. 2019b; HBW/BirdLife).

AL 13.1

Black-fronted Spurfowl

Pternistis atrifrons

Chestnut-naped Spurfowl

Pternistis castaneicollis

Black-fronted Spurfowl was originally split from Chestnut-naped Spurfowl P. castaneicollis (Töpfer et al. 2014), but it is treated as ssp. of P. castaneicollis by Redman et al. (2011), Mandiwana-Newdani et al. (2019), del Hoyo & Collar (2014) and HBW/BirdLife absent strong DNA divergence, similar vocalizations and minor differences in plumage.

AL 13.1

Black-shouldered Nightjar

Caprimulgus nigriscapularis

Fiery-necked Nightjar

Caprimulgus pectoralis

Black-shouldered Nightjar Caprimulgus nigriscapularis is treated as the northern subspecies of C. pectoralis based on similar vocalizations and lack of significant morphological differences (Louette 1990; Dowsett & Lemaire 1993; Zimmerman et al. 1996; Jackson 2013; Dickinson & Remsen 2013; HBW/BirdLife). Contra Fry et al. (1988); Cleere (1995, 1999); and Holyoak (2001).

AS 13.1

Green Inca

Coeligena conradii

Collared Inca

Coeligena torquata

Green Inca Coeligena conradii is a proposed split from Collared Inca C. torquata based on differences in plumage (del Hoyo & Collar 2014; Donegan et al. 2015; HBW/BLI).

AS 13.1

Gould's Inca

Coeligena inca

Collared Inca

Coeligena torquata

Gould's Inca Coeligena inca (including omissa) is a proposed split from Collared Inca C. torquata based on differences in plumage and genetic differentiation (Schuchmann 1999; del Hoyo & Collar 2014; McGuire et al. 2014; HBW/BLI).

AS 13.1

Perija Starfrontlet

Coeligena consita

Golden-bellied Starfrontlet

Coeligena bonapartei

Perija Starfrontlet Coeligena consita is a proposed split from C. bonapartei based on differences in plumage (del Hoyo & Collar 2014; Donegan et al. 2015; HBW/BirdLife).

AS 13.1

Golden-tailed Starfrontlet

Coeligena eos

Golden-bellied Starfrontlet

Coeligena bonapartei

Golden-tailed Starfrontlet Coeligena eos is a proposed split from C. bonapartei based on differences in plumage (Schuchmann 1999; del Hoyo & Collar 2014; Donegan et al. 2015; HBW/BirdLife).

AS 13.1

Copper-tailed Hummingbird

Saucerottia cupreicauda

Green-bellied Hummingbird

Saucerottia viridigaster

Copper-tailed Hummingbird Saucerottia cupreicauda (including duidae, laireti, and pacaraimae) is a proposed split from Green-bellied Hummingbird Saucerottia viridigaster on the basis its distinctive coloration of the rump, uppertail coverts and retrices (del Hoyo & Collar 2014; HBW/BirdLife).

PS 13.1

Crismson-crested Turaco

Menelikornis donaldsoni

White-cheeked Turaco

Menelikornis leucotis

M. donaldsoni Crismson-crested Turaco is a proposed split from M. leucotis based on syntopy and differences in plumage which complement earler phylogenetic studies (Gedeon et al. 2022; Perktaş et al. 2020). 

AS 13.1

Enggano Imperial Pigeon

Ducula oenothorax

Green Imperial Pigeon

Ducula aenea

Enggano Imperial Pigeon Ducula oenothorax is split from Green Imperial Pigeon D. aenea on the basis of pronounced differences in plumage (Eaton et al. 2021; del Hoyo & Collar 2014; HBW/BLI).

AS 13.1

African Woolly-necked Stork

Ciconia microscelis

(Asian) Woolly-necked Stork

Ciconia episcopus

Widely allopatric African Woolly-necked Stork Ciconia microscelis is split from Asian Woolly-necked Stork C. episcopus based on plumage and other morpholoigcal differences (del Hoyo & Collar 2014; HBW/BLI).

PL 13.1

Cape Verde Buzzard

Buteo bannermani

Common Buzzard

Buteo buteo

Cape Verde Buzzard Buteo bannermani is split from Common/Eurasian Buzzard (Clouet & Wink 2000), but its taxonomic status of Cape Verde Buzzard is unsettled. Limited mtDNA analyses suggest close relationship with Socotra Buzzard (Clouet & Wink 2000; Kruckenhauser et al. 2004). But their relationships to other Buteo species in the buteo/rufinus/oreophilus complex are contradictory between studies. Proposal to treat bannermani as a subspecies of Buteo buteo based on plumage characteristics (del Hoyo & Collar 2014; Clements 2022; HBW/BirdLife) is under consideration.

NEW Principe Scops Owl

Otus bikegila

Sp. nov.: Melo et al. 2022. Principe Scops Owl Otus bikegila is a newly described species based on morphometrics, plumage, bioacoustics and molecular analysis.

PS 13.1 Northern Fish Owl

Ketupa doerriesi

Blakiston's Fish Owl

Ketupa blakistoni

Ketupa doerriesi Northern Fish Owl is a proposed split from Ketupa blakistoni based on deep mitochondrial genome divergence, significant bioacoustic differences and differences in plumage (Omote et al. 2018; Movin et al. 2022).

AS 13.1

Malayan Blue-banded Kingfisher

Alcedo peninsulae

(Javan) Blue-banded Kingfisher

Alcedo euryzona

Malayan Blue-banded Kingfisher Alcedo peninsulae is split from Javan Blue-banded Kingfisher A. euryzona based on distinct differences in plumage. The female plumages are particularly dissimilar (del Hoyo & Collar 2014; HBW/BirdLife. See Eaton et al. 2021).

AS 13.1

Sangihe Dwarf Kingfisher

Ceyx sangirensis 

Sulawesi Dwarf Kingfisher

Ceyx fallax

The critically endangered Sangihe Dwarf Kingfisher Ceyx sangirensis is split from Ceyx fallax based on plumage and other morphological differences (del Hoyo & Collar 2014; HBW/BirdLife. See Eaton et al. 2021).

AL 13.1

Malaita Dwarf Kingfisher

Ceyx malaitae

Guadalcanal Dwarf Kingfisher

Ceyx nigromaxilla

Ceyx malaitae was previously treated as a separate monophyletic species, but it is more recently lumped with Ceyx nigromaxilla (del Hoyo & Collar 2014; HBW/BirdLife; Clements 2022). Despite the non-monophyly shown in the molecular study by Andersen et al. (2013), the two taxa demonstrate only minimal differences in plumage and occupy neighboring islands. The molecular study was based on only a single specimen of C. malaitae and non-monophyly requires confirmation. 

PS 13.1

Northern Red-fronted Tinkerbird

Pogoniulus uropygialis

(Southern) Red-fronted Tinkerbird

Pogoniulus pusillus

Northern Red-fronted Tinkerbird Pogoniulus uropygialis (including affinis and resurrected eupterus) is a proposed split from Southern Red-fronted Tinkerbird P. pusillus based on whole genome data, significant divergence in mtDNA, and phenotypic differences (Kirschel et al. 2021).

AL 13.1

Thick-billed Honeyguide

Indicator conirostris

Lesser Honeyguide

Indicator minor

Thick-billed Honeyguide Indicator conirostris (including ussheri) is lumped with Lesser Honeyguide I. minor. The two species have identical voices, virtually identical plumage, and their presumed ecological separation has been questioned (del Hoyo & Collar 2014; HBW/BirdLife). 

AS 13.1

Sumba Eclectus, Tanimbar Eclectus, Papuan Eclectus

Eclectus cornelia, Eclectus riedeli, Eclectus polychloros

Moluccan Eclectus (Eclectus Parrot)

Eclectus roratus

Sumba Eclectus E. cornelia, Tanimbar Eclectus E. riedeli and Papuan Eclectus E. polychloros (including solomonensis and macgillivrayi) are accepted splits from Moluccan Eclectus (Eclectus Parrot) Eclectus roratus (including vosmaeri and, tentatively, the extinct westermani) based on differences in especially female plumage and, in some instances, size, coupled with supporting molecular data (HBW/BirdLife; Braun et al. 2017).

ADD

†† Oceanic Eclectus

Eclectus  infectus

Known primarily from late Holocene skeletal material and one crude contempory drawing of a living bird rendered on Vava'u, Tonga in 1793 (Steadman, 2006; Olson, 2006; HBW/BirdLife).

PS 13.1 Dusky-cheeked Fig Parrot

Cyclopsitta melanogenia

Orange-breasted Fig Parrot

Cyclopsitta gulielmitertii s.l.

Dusky-cheeked Fig Parrot Cyclopsitta melanogenia (including ssp. suavissima, fuscifrons) is a proposed split from the Orange-breasted Fig Parrot complex Cyclopsitta gulielmitertii s.l. based on significant differences in plumage and size (Schnitker 2007; Dickinson & Remsen 2013; del Hoyo & Collar 2016; HBW/BirdLife).

PS 13.1 Black-fronted Fig Parrot

Cyclopsitta nigrifrons

Orange-breasted Fig Parrot

Cyclopsitta gulielmitertii s.l.

Black-fronted Fig Parrot Cyclopsitta nigrifrons (including amabilis) is a proposed split from the Orange-breasted Fig Parrot complex Cyclopsitta gulielmitertii s.l. based on significant differences in plumage and size (Schnitker 2007, Dickinson & Remsen 2013).

PS 13.1 Coxen's Fig Parrot

Cyclopsitta coxeni

Double-eyed Fig Parrot

Cyclopsitta diophthalma

Coxen's Fig Parrot Cyclopsitta coxeni is a proposed split from Double-eyed Fig Parrot C. diophthalma on the basis of differences in plumage and size (del Hoyo & Collar 2016; HBW/BirdLife).

AS 13.1

Black-billed Hanging Parrot

Loriculus bonapartei

Philippine Hanging Parrot

Loriculus philippensis

Black-billed Hanging Parrot Loriculus bonapartei is split from Philippine Hanging Parrot L. philippensis on the basis of differeces in bill and leg color, some differences in plumage, and lack of sexual dimophism (Allen 2020).

AS 13.1

Choco Manakin

Cryptopipo litae

Green Manakin

Cryptopipo holochlora

Choco Manakin Cryptopipo litae (including suffusa) is split from Green Manakin C. holochlora on the basis of differences in plumage and vocalizations (Ridgely & Tudor 1994; Ridgely & Greenfield 2001; del Hoyo & Collar 2016; Boesman 2016; HBW/BirdLife).

AS 13.1

Black-breasted Gnateater

Conopophaga snethlageae

Chestnut-belted Gnateater

Conopophaga aurita

Black-breasted Gnateater Conopophaga snethlageae (including pallida) is split from Chestnut-belted Gnateater C. aurita based on differences in plumage, vocalizations, and deep genetic divergence (Whitney 2003, Batalha-Filo et al. 2014, Boesman 2016, del Hoyo & Collar 2016; HBW/BirdLife).

AS 13.1

Olive-striped Flycatcher

Mionectes galbinus

Olive-streaked Flycatcher

Mionectes olivaceus

Mionectes galbinus (including hederaceus, venezuelensis and fasciaticollis) is split from monotypic M. olivaceus primarily on significant differences in song, bill structure and minor plumage differences (del Hoyo & Collar 2016; Boesman 2016; HBW/BirdLife). The English name Olive-striped Flycatcher is retained by the polytypic split form, and M. olivaceus becomes Olive-streaked Flycatcher. The songs in polytypic M. galbinus are quite variable. Further cryptic species may be involved (see Fitzpatrick et al. 2020).

AS 13.1

Northern Mouse-colored Tyrannulet

Nesotriccus incomtus

(Southern) Mouse-colored Tyrannulet

Nesotriccus murinus

Northern Mouse-colored Tyrannulet Nesotriccus incomtus (including eremonomus) is split from (Southern) Mouse-colored Tyrannulet N. murinus on the basis of phylogenetic analysis by resolving the paraphyly otherwise imposed by N. ridgwayi which is embedded in the N. murinus complex; and subtle differences in plumage (Zucker et al. 2016).

AS 13.1

Maranon Tyrannulet

Nesotriccus maranonicus

Tumbesian Tyrannulet

Nesotriccus tumbezanus

Maranon Tyrannulet Nesotriccus maranonicus is split from Tumbesian Tyrannulet N. tumbezanus based on phylogenetic analysis, plumage and vocalzations (Zucker et al. 2016).

AS 13.1

Choco Elaenia; Amazonian Elaenia

Myiopagis parambae; Myiopagis cinerea

(Atlantic) Grey Elaenia

Myiopagis caniceps

Choco Elaenia Myiopagis parambae (including absita) and Amazonian Elaenia Myiopagis cinerea are splits from Grey-headed (Grey) Elaenia Myiopagis caniceps on the basis of differences in morphology and plumage supported by phylogenetic analysis (Rheindt et al. 2009; Cuervo et al. 2014; del Hoyo & Collar 2016; HBW/BirdLife).

AL 13.1

White-bellied Tyrannulet

Serpophaga munda

White-crested Tyrannulet

Serpophaga subcristata

White-bellied Tyrannulet Serpophaga munda is lumped with White-crested Tyrannulet S. subcristata based on essentially identical vocalizations despite differences in plumage (del Hoyo & Collar 2014; HBW/BirdLife).

AS 13.1

Bahia Wagtail-Tyrant

Stigmatura bahiae

Lesser Wagtail-Tyrant

Stigmatura napensis

Bahia Wagtail-Tyrant Stigmatura bahiae is split from Lesser Wagtail-Tyrant Stigmatura napensis based on paraphyly relative to Stigmatura budytoides supported by differences in plumage and voice (Harvey et al. 2020; del Hoyo & Collar 2016; HBW/BirdLife).

AS 13.1

Mouse-grey Flycatcher, Rufescent Flycatcher

Myiophobus crypterythrus, Myiophobus rufescens

Bran-colored Flycatcher

Myiophobus fasciatus

Mouse-grey Flycatcher Myiophobus crypterythrus and Rufescent Flycatcher Myiophobus rufescens are splits from Bran-colored Flycatcher M. fasciatus based on significant differences in plumage and vocalizations (del Hoyo & Collar 2016; HBW/BirdLife).

AS 13.1

Northern Tropical Pewee

Contopus bogotensis

(Southern) Tropical Pewee

Contopus cinereus

Northern Tropical Pewee Contopus bogotensis (including brachytarsus, rhizophorus, aithalodes and surinamensis) is split from (Southern) Tropical Pewee Contopus cinereus (including pallescens) based on differences in plumage and vocalizations which are further supported by phylogenetic analysis (del Hoyo & Collar 2016; HBW/BirdLife; Harvey et al. 2020).

AS 13.1

Rufous-browed Chat-Tyrant

Ochthoeca superciliosa

Brown-backed Chat-Tyrant

Ochthoeca fumicolor

Rufous-browed Chat-Tyrant Ochthoeca superciliosa is split from Brown-backed Chat-Tyrant Ochthoeca fumicolor based on striking differences in plumage (del Hoyo & Collar 2016; HBW/BirdLife; see Ridgely & Tudor 1994).

AS 13.1

Malawi Batis

Batis dimorpha

Cape Batis

Batis capensis

Malawi Batis Batis dimorpha (including sola) is split from Cape Batis Batis capensis on the basis of differences in plumage (del Hoyo & Collar 2016; HBW/BirdLife). Reported sympatry in s Malawi (Dowsett in litt).

AS 13.1

Northern Shriketit, Western Shriketit

Falcunculus whitei, Falcunculus leucogaster

Eastern (Crested) Shriketit

Falcunculus frontatus

Northern Shriketit Falcunculus whitei and Western Shriketit F. leucogaster are proposed splits from Eastern (Crested) Shriketit F. frontatus based on plumage and vocalizations. (Schodde & Mason 1999; del Hoyo & Collar 2016; HBW/BirdLife).

AS 13.1

Comoros Blue Vanga

Cyanolanius comorensis

(Madagascar) Blue Vanga

Cyanolanius madagascarinus

Comoros Blue Vanga Cyanolanius comorensis (including bensoni) is split from (Madagascar) Blue Vanga C. madagascarinus on the basis of differences in plumage, size and bill length (del Hoyo & Collar 2016; HBW/BirdLife).

AL 13.1

Himalayan Shrike-babbler, Dalat Shrike-babbler

Pteruthius ripleyi, Pteruthius annamensis

White-browed (Blyth's) Shrike-babbler

Pteruthius aeralatus

A recent reassessment of the vocalizations of the White-browed Shrike-babbler complex by Boesman et al (2016) of the  further suggests that the original split of the mainland taxa of White-browed Shrike-babbler may have been premature. Lump Pteruthius ripleyi and P. annamensis with P. aeralatus following del Hoyo & Collar (2016) and HBW/BirdLife.

PL 13.1

Beesley's Lark

Chersomanes beesleyi

Spike-heeled Lark

Chersomanes albofasciata

Beesley's Lark Chersomanes beesleyi is proposed to be re-lumped with Spike-heeled Lark C. albofasciata based on a reconsideration of the features that were originally cited to justify the split. Despite deep genetic divergence based on mtDNA evidence (Alström et al. 2013), differences in plumage may be clinal or inconsistent and behavioral differences have been questioned. Further, a population of Spike-heeled Lark with variable plumage and an intermediate range in se DR Congo has not been properly assessed or classified (Donald & Collar 2011; del Hoyo & Collar 2016; Louette & Hasson 2017; Ryan et al. 2022; Clements 2022; HBW/BirdLife).

PL 13.1

Benguela Long-billed Lark

Certhilauda benguelensis

Karoo Long-billed Lark

Certhilauda subcoronata

Benguela Long-billed Lark Certhilauda benguelensis is a proposed lump with Karoo Long-billed Lark C. subcoronata based on very similar vocalizations and plumage despite distinct genetic divergence (del Hoyo & Collar 2016; Ryan & Kirwan 2022; Clements 2022; HBW/BirdLife).

PL 13.1

Agulhas Long-billed Lark

Certhilauda brevirostris

Cape Long-billed Lark

Certhilauda curvirostris

Agulhas Long-billed Lark Certhilauda brevirostris is a proposed lump with Cape Long-billed Lark C. curvirostris based on shallow genetic divergence and essentially identical vocalizatons (Alström et al. 2013; del Hoyo & Collar 2016; HBW/BLI; Clements 2022).

PL 13.1 Foxy Lark

Calendulauda alopex

Fawn-colored Lark

Calendulauda africanoides

Foxy Lark Calendulauda alopex is a proposed lump with Fawn-colored Lark C. africanoides based on shallow genetic divergence (Alström et al. 2013) and only slight differences in morphology (Ryan 2022; Clements 2022; HBW/BirdLife).

PL 13.1

Barlow's Lark

Calendulauda barlowi

Dune Lark

Calendulauda erythrochlamys

Barlow's Lark Calendulauda barlowi (including patae and cavei) is a proposed lump with Dune Lark C. erythrochlamys on the basis of shallow genetic divergence and essentially identical vocalizations and size (Alström et al. 2013; del Hoyo & Collar 2016; Ryan & Kirwan 2022; HBW/BirdLife).

PS 13.1 Sharpe's Lark

Mirafra sharpii

Rufous-naped Lark

Mirafra africana

Monotypic Sharpe's Lark Mirafra sharpii is a proposed split from Rufous-naped Lark M. africana on the basis of differences in plumage and morphology supported by unpublished genetic data (Redman et al. 2009; del Hoyo & Collar 2016; Alström & Donald 2022; HBW/BirdLife).

AL 13.1

Singing Bushlark

Mirafra cantillans

Horsfield's Bush Lark

Mirafra javanica

Singing Bush Lark Mirafra cantillans (including marginata, chadensis, and simplex) is a lumped with Horsfield's Bush Lark C. javanica on the basis of shallow genetic divergence, similar vocalizations, and convergent variation in plumage (Alström et al. 2013, del Hoyo & Collar 2016; Alström & Ryan. 2022; HBW/BirdLife).

AL 13.1

Sunda Bush Warbler

Horornis vulcanius

Aberrant Bush Warbler

Horornis flavolivaceus

Sunda Bush Warbler Horornis vulcanius (including sepiarius, flaviventris, kolichisi, everetti, banksi, oreophilus, and palawanus) is lumped with Aberrant Bush Warbler H. flavolivaceus in face of conflicting interpretation of genetic data (Olsson et al. 2006, Alström et al. 2011). Recognize a polytypic Aberrant Bush Warbler following del Hoyo & Collar (2016) and HBW/Birdlife pending further analysis of vocalizations and genomic data.

AS 13.1

Rufous-crowned Prinia 

Prinia khasiana

Black-throated Prinia

Prinia atrogularis

Rufous-crowned Prinia Prinia khasiana is split from Black-throated Prinia P. atrogularis on the basis of marked differences in plumage, distinctive vocalizations, and genetic divergence (Rasmussen & Anderton 2012; del Hoyo & Collar 2016; Groot 2021; HBW/Birdlife).

NEW

Wangi-wangi White-eye

Zosterops paruhbesar

Wangi-wangi White-eye  is a newly described, single island endemic species: Irham et al. 2022, based on its significantly larger bill and body size than other regional white-eyes, and its genetic distinctiveness (O'Connell et al. 2019; Irham et al. 2022).

AS 13.1

Brown-crowned Scimitar Babbler

Pomatorhinus phayrei

Coral-billed Scimitar Babbler

Pomatorhinus ferruginosus

Polytypic Brown-crowned Scimitar Babbler Pomatorhinus phayrei (five subspecies) is split from monotypic Coral-billed Scimitar-Babbler P. ferruginosus on the basis of plumage and vocalizations (Rasmussen & Anderton 2012; del Hoyo & Collar 2016; HBW/BirdLife).

AS 13.1

Tenggara Hill Myna

Gracula venerata

Common Hill Myna

Gracula religiosa

Tenggara Hill Myna Gracula venerata is split from Common Hill Myna G. religiosa based on differences in the color the plumage gloss, the structure of the wattle and other areas of bare skin of the  head, and very different vocalizations (del Hoyo & Collar 2016; Eaton et al. 2021; HBW/BirdLife).

AS 13.1

Vinous-breasted Myna

Acridotheres leucocephalus

Burmese Myna

Acridotheres burmannicus

Acridotheres leucocephalus is a proposed split from Acridotheres burmannicus based on plumage, bill size and color pattern and, possibly, iris color (del Hoyo & Collar 2016; HBW/BirdLife). The split species A. leucocephalus retains the English name Vinous-breasted Myna while the parent form becomes Burmese Myna.

AS 13.1

Ethiopian Thrush

Turdus simensis

Groundscraper Thrush

Turdus litsitsirupa

Ethiopian Thrush Turdus simensis is split from Groundscraper Thrush T. litsitsirupa based on deep genetic divergence and differences in plumage and vocalizations (Nylander et al. 2008; del Hoyo & Collar 2016; HBW/BirdLife).  

AS 13.1

Rufous-breasted Blue Flycatcher 

Cyornis camarinensis

Blue-breasted Blue Flycatcher

Cyornis herioti

Rufous-breasted Blue Flycatcher Cyornis camarinensis is split from Blue-breasted Blue Flycatcher C. herioti based on its striking morpological differences (del Hoyo & Collar 2016; Allen 2020; HBW/BirdLife).

AL 13.1

Tanahjampea Blue Flycatcher

Cyornis djampeanus

Sulawesi Blue Flycatcher

Cyornis omissus

Treat as a subspecies of Sulawesi Blue Flycatcher C. omissus following Gwee et al. (2019) and aligning with Clements (2022) in IOC 13.1 based on weak vocal differentiation and minor differences in morphology and plumage from C. omissus.

AS 13.1

Kalao Blue Flycatcher

Cyornis kalaoensis

Mangrove Blue Flycatcher

Cyornis rufigastra

Kalao Blue Flycatcher Cyornis kalaoensis is split from Mangrove Blue Flycatcher Cyornis rufigastra, and is further regarded as specifically distinct from Tanahjampea Blue Flycatcher C. djampeanus (as proposed by del Hoyo & Collar (2016) and HBW/BLI), based on vocalizations and plumage that differ from both of those species (Gwee et al. 2019; Eaton et al. 2021).

PS 13.1

Tenerife Robin

Erithacus superbus

European Robin

Erithacus rubecula

Erithacus superbus Tenerife Robin is a proposed split from E. rubecula based on differences in plumage, morphometrics, bioacoustics and supporting molecular analysis (Sangster et al. 2022).

PS 13.1

Gran Canaria Robin

Erithacus marionae

European Robin

Erithacus rubecula

Erithacus marionae Gran Canaria Robin is a proposed split from Erithacus rubecula based on differences in plumage, morphometrics, bioacoustics and supporting molecular analysis, and differs from E. superbus by song, calls and a high level of genetic divergence (Sangster et al. 2022).

AS 13.1

Izu Robin

Larvivora tanensis

Japanese Robin

Larvivora akahige

Izu Robin Larvivora tanensis is split from Japanese Robin Larvivora akahige based primarily on differences in vocalizations and habitat (Zhao et al. 2016;  del Hoyo & Collar 2016; HBW/BirdLife).

AS 13.1 Taiwan Bush Robin

Tarsiger formosanus

White-browed Bush Robin

Tarsiger indicus

Tarsiger formosanus Taiwan Bush Robin is a  proposed split from Tarsiger indicus based on phylogenetic analysis couped with differences in plumage, morphology and song (Wei et al. 2022).

AS 13.1

Qilian Bluetail

Tarsiger albocoeruleus

Red-flanked Bluetail

Tarsiger cyanurus

Qilian Bluetail Tarsiger albocoeruleus (resurrected species epithet) is a proposed split from Red-flanked Bluetail T. cyanurus based on strong differences in song and morphometrics supported by phylogenetic analysis (Wei et al. 2022).

AS 13.1

Amber Mountain Rock Thrush

Monticola erythronotus

Forest Rock Thrush

Monticola sharpei

Restore Amber Mountain Rock Thrush Monticola erythronotus as a full species based on its distinctive plumage following del Hoyo & Collar (2016) and HBW/BirdLife.

PL 13.1

Ruaha Chat

Myrmecocichla collaris (leucolaema)

Arnot's Chat

Myrmecocichla arnotti

Restore Ruaha Chat Myrmecocichla collaris as a subspecies of Arnot's Chat Myrmecocichla arnotti (del Hoyo & Collar 2016; HBW/BirdLife). Change scientific name to leucolaema Fischer & Reichenow, 1880 which has priority.

AS 13.1

Rusty-breasted Wheatear

Oenanthe frenata

Red-breasted (Buff-breasted) Wheatear

Oenanthe bottae

Rusty-breasted Wheatear Oenanthe frenta is split from Oenanthe bottae (renamed Buff-breasted Wheatear) based on differences in plumage (del Hoyo & Collar 2016; HBW/BirdLife)

AS 13.1

Olive-naped Weaver

Ploceus brachypterus

Black-necked Weaver

Ploceus nigricollis

Olive-naped Weaver Ploceus brachypterus is split from Black-necked Weaver P. nigricollis based on differences in plumage and iris color (del Hoyo & Collar 2016; HBW/BirdLife).

AS 13.1

Chestnut-and-black Weaver

Ploceus castaneofuscus

Vieillot's Black Weaver

Ploceus nigerrimus

Chestnut-and-black Weaver Ploceus castaneofuscus is split from Vieillot's Black Weaver Ploceus nigerrimus based on its distinctive plumage (del Hoyo & Collar 2016; HBW/BirdLife).

AS 13.1 Red Weaver

Anaplectes jubaensis

Red-headed Weaver

Anaplectes rubriceps

Red Weaver Anaplectes jubaensis is split from Red-headed Weaver A. rubriceps (including leuconotos) based on its distinctive plumage (del Hoyo & Collar 2016; HBW/BirdLife).

AS 13.1

Red-cowled Widowbird

Euplectes laticauda

Red-collared Widowbird

Euplectes ardens

Red-cowled Widowbird Euplectes laticauda (including suahelicus) is split from Red-collared Widowbird E. ardens based on substantial differences in plumage, and tail length of males in breeding plumage (del Hoyo & Collar 2016; HBW/BirdLife). Phylogenetic analysis also demonstrates relatively deep genetic divergence (de Silva et al. 2019).

AL

Red-backed Mannikin

Spermestes nigriceps

Black-and-white Mannikin

Spermestes bicolor

Red-backed Mannikin Spermestes nigriceps is lumped with Black-and-white Mannikin S. bicolor. Earlier claims of parapatric distribution (Sibley & Monroe 1970) have been disputed (Dowsett & Dowsett‐Lemaire 1993) and there is clinal variation of the color of the back from west to east (del Hoyo & Collar 2016; HBW/BirdLife).

AL

Abyssinian Waxbill

Estrilda ochrogaster

Fawn-breasted Waxbill

Estrilda paludicola

Abyssinian Waxbill Estrilda ochrogaster is lumped with Fawn-breasted Waxbill E. paludicola. Plumage characteristics that define this taxon, though distinctive, are not significantly different from those of the nominate subspecies than other subspecies within this complex (del Hoyo & Collar 2016; HBW/BirdLife).

AL 13.1

Landana Firefinch

Lagonosticta landanae

African Firefinch

Lagonosticta rubricata

Landana Firefinch Lagonosticta landanae is lumped with African Firefinch due to insignicant differences in plumage (Payne 2004; del Hoyo & Collar 2016; HBW/BirdLife).

AS 13.1

White-bellied Tanager

Tangara brasiliensis

Turquoise Tanager

Tangara mexicana

The geographically isolated White-bellied Tanager Tangara brasiliensis is restored as a full species as a split from Turqoise Tanager T. mexicana based on its distinctive plumage and larger size (Ridgely & Tudor 2009; del Hoyo & Collar 2016; HBW/BirdLife).

TEST

Proposed Splits/Lumps IOC Version 12.2

Number
English Name Scientific Name Parent Parent (sci) Proposal
PS 12.2 Red Grouse Lagopus scotica Willow Ptarmigan Lagopus lagopus Red Grouse is a proposed split from Willow Ptarmigan based on molecular evidence and differences in plumage (Sangster et al. 2022).

AS 12.2

Tibetan Sand Plover Charadrius atrifrons Siberian Sand Plover Charadrius mongolus
Tibetan Sand Plover C. atrifrons (including pamirensis and schaeferi) is a proposed split from Siberian Sand Plover C. mongolus (including stegmanni) based on phenotypic differences and phylogenetic analysis which demonstrates paraphyly of these two taxa relative to Greater Sand Plover Charadrius leschenaultii (Livezey 2010; Wei et al. 2022).
AS 12.2 MacGillivray's Prion Pachyptila macgillivrayi Salvin's Prion Pachyptila salvini
Macgillivray's Prion P. macgillivrayi is split from Salvin's Prion based on bill morphology and other more subtle morphological differences, supported by genetic analysis (HBW/BirdLife; Harrison et al. 2021; Masello et al. 2022)
NEW 12.2 New Caledonian Storm Petrel
Fregetta lineata

New Caledonian Storm Petrel Fregetta lineata Mathews (1933) is recognized as a resurrected and redescribed species, distinct from the other taxa within Fregetta, based on biometrics and limited phylogenetic analysis (Cibiois et al. 2015; Robertson et al. 2016; Bretagnolle et al. 2022).

 

AL 12.2
Eastern Osprey
Pandion cristatus
Western Osprey (Osprey)
Pandion haliaetus
Eastern Osprey is re-lumped with Western Osprey as simply "Osprey" based on low genetic divergence, phylogenetic analysis, and absence of strong morphological differences (Monti et al. 2015; Monti et. al. 2018; HBW/BirdLife, Clements).
AL 12.2 Archer's Buzzard
Buteo archeri
Augur Buzzard
Buteo augur
Buteo archeri was formerly treated as a distinct species, Archer's Buzzard (Thiollay 1994; Riesing et al. 2003). But it is now generally regarded either as a subspecies or a rufous morph of Augur Buzzard (Clark 1996; Clark 2003; Dickinson & Remsen 2013; HBW/BirdLife). Tentatively treated as a subspecies here.
AS 12.2 Tasmanian Boobook
Ninox leucopsis
Morepork
Ninox novaeseelandiae
Tasmanian Boobook is split from Morepork based on genetic and vocal divergence and morphometrics (König & Weick 2008; Dickinson & Remsen 2013; Gwee et al. 2017; HBW/BirdLife).
AL 12.2 Usambara Eagle-Owl
Bubo vosseleri
Fraser's Eagle-Owl
Bubo poensis
Usambara Eagle-Owl was formerly regarded as a monotypic species based on size and some differences in plumage from the nominate subspecies of Fraser's Eagle-Owl (König & Weick. 2008). But vocalizations are not appreciably different (Hunter et al. 1998; Dowsett-Lemaire 2006). Treated as a subspecies of Fraser’s Eagle-Owl following HBW/BirdLife.
AL 12.2 Pere David's Owl
Strix davidi
Ural Owl
Strix uralensis
Pere David's Owl Strix davidi demonstrates broad plumage and vocal overlap with S. uralensis (Scherzinger 2004, Scherzinger et al. 2014). Treat as a subspecies of Ural Owl following HBW/BLI.
PS 12.2 Morotai Paradise Kingfisher
Tanysiptera doris
Common (Papuan) Paradise Kingfisher
Tanysiptera galatea
Morotai Paradise Kingfisher T. doris (including emiliae) is a proposed split from the rest of the Common Paradise Kingfisher complex based on distinctive vocalizatons (Sin et al. 2022).
PS 12.2 Halmahera Paradise Kingfisher
Tanysiptera margarethae
Common (Papuan) Paradise Kingfisher
Tanysiptera galatea
Halmahera Paradise Kingfisher T. margarethae (including browningi, brunhildae, and sabrina) is a proposed split from the rest of the Common Paradise Kingfisher complex based on distinctive vocalizatons (Sin et al. 2022).
PS 12.2 Obi Paradise Kingfisher
Tanysiptera obiensis
Common (Papuan) Paradise Kingfisher
Tanysiptera galeata
Monotypic Obi Paradise Kingfisher T. obiensis is a proposed split from the rest of the Common Paradise Kingfisher complex based on distinctive vocalizatons (Sin et al. 2022).
PS 12.2 Amboyna Paradise Kingfisher
Tanysiptera nais
Common (Papuan) Paradise Kingfisher
Tanysiptera galeata
Amboyna Paradise Kingfisher T. nais (including acis and boanensis) is a proposed split from the rest of the Common Paradise Kingfisher complex based on distinctive vocalizatons (Sin et al. 2022).
PS 12.2 Rossel Paradise Kingfisher
Tanysiptera rosseliana
Common (Papuan) Paradise Kingfisher
Tanysiptera galeata
Monotypic Rossel Paradise Kingfisher T. rosseliana is a proposed split from T. galatea based on morphological and vocal differences (Beehler & Pratt 2016; Gregory 2017; Sin et. al. 2022).
AS 12.2 Velvety Manakin
Lepidothrix velutina
Blue-crowned (Blue-capped) Manakin
Lepidothrix coronata
Transandean Velvety Manakin Lepidothrix velutina (including minuscula) is split from L. coronata based on significant phylogenetic and bioacoustic differences (Moncrieff et al. 2022; SACC 943). Change English name of L. coronata from Blue-crowned Manakin to Blue-capped Manakin with the split.

AS 12.2

Ventriloquial Oriole
Oriolus consobrinus
Dark-throated Oriole
Oriolus xanthonotus
Ventriloquial Oriole Oriolus consobrinus (including persuasus) is split from Dark-throated Oriole O. xanthonotus based on genomic analysis and differences in morphometrics, plumage, and bioacoustics (Rheindt et al. 2022).
PS 12.2 Tagula Manucode Manucodia alter Glossy-mantled Manucode Manucodia ater

Tagula Manucode M. alter is split from Glossy-mantled Manucode M. ater based on strikingly different vocalizations and some morphological differences (Gregory 2017).

PS 12.2 Madagascar Plain Martin Riparia cowani Brown-throated Martin Riparia paludicola Madagascar Plain Martin is a proposed split from Brown-throated Martin based on morphology and vocalizations. English name tentative (HBW/BirdLife).
AL 12.2 Chinese Cupwing
Pnoepyga mutica
Scaly-breasted Cupwing
Pnoepyga albiventer
Pnoepyga mutica was formerly split provisionally from P. albiventer (Päckert et al. 2012) based on moderate divergence in mitochondrial DNA and vocalizations. But others have rejected the vocal distinctiveness (Boesman, 2016; HBW/BirdLife). Further evidence is needed to support the split at species level.
AL 12.2 African Reed Warbler
Acrocephalus baeticatus
Eurasian Reed Warbler
Acrocephalus scirpaceus
African Reed Warbler Acrocephalus baeticatus (including ambiguus, minor, cinnamomeus, suahelicus, and hallae) is lumped with Eurasian Reed Warbler A. scirpaceus as Common Reed Warbler based on similarities in morphology (other than wing structure in the non-migratory, sub-Saharan African populations), vocalizations, habitat choice, and relatively recent genetic divergence (Dowsett-Lemaire & Dowsett 1987; Olsson et al. 2016; HBW/BirdLife).
PS 12.2 Subdesert Jery Neomixis pallidior Stripe-throated Jery Neomixis striatigula Subdesert Jery is a proposed split from Stripe-throated Jery based on morphology and vocalizations (HBW/BirdLife).
AS 12.2 Anjouan White-eye Zosterops anjuanensis Malagasy White-eye Zosterops maderaspatanus
Anjouan White-eye Z. anjuanensis is split from Z. maderaspatanus based on molecular analysis (Warren et al. 2006; Clements).
AS 12.2 Moheli White-eye Zosterops comorensis Malagasy White-eye Zosterops maderaspatanus
Moheli White-eye Z. comorensis is split from Z. maderaspatanus based on molecular analysis (Warren et al. 2006; Clements).
New 12.2 Meratus White-eye Zosterops meratusensis Meratus White-eye is a newly described species from se Borneo (Irham et al. 2022).
AS 12.2 Kangean Tit-Babbler
Mixornis prillwitzi
Grey-cheeked Tit-Babbler
Mixornis flavicollis
Kangean Tit-Babbler Mixornis prillwitzi is split from M. flaicollis based on differences in plumage and vocalizations (Cros & Rheindt 2017; HBW/BirdLife).
New 12.2 Meratus Blue Flycatcher Cyornis kadayangensis Meratus Blue Flycatcher is a newly described species from se Borneo (Irham et al. 2022).
AL 12.2
Abbott's Sunbird
Cinnyris abbotti
Souimanga Sunbird
Cinnyris sovimanga
Abbott's Sunbird Cinnyris abbotti (including buchenorum) is lumped with Souimanga Sunbird Cinnyris sovimanga based on molecular data that show it embedded within the latter species (Warren et al. 2003; Skerrett & Disley 2011; Hawkins et al. 2015; HBW/BirdLife, Clements).
AL 12.2
Caqueta Seedeater
Sporophila murallae
Wing-barred Seedeater
Sporophila americana
Sporophila murallae is lumped with S. americana based on recent re-evalulation demonstrating a broad overlap in plumage characteristics and significant reduction in the perceived geographical gap between their distributions (SACC 932).

  AS 12.1 Elgon Francolin Scleroptila elgonensis Moorland Francolin Scleroptila psilolaema Elgon Francolin is split from Moorland Francolin based on differences in vocalizations and plumage (Hunter et al. 2019; HBW/Birdlife, N. Redman in litt.)).
PS 12.1 Savanna Nightjar Caprimulgus monticolus "Allied" Nightjar Caprimulgus affinis Caprimulgus monticolus (including amoyensis and stictomus) is a proposed split from C. affinis which would assume the English name "Allied Nightjar". English names under discussion and differ from those  those suggested in the publication. (Sangster et al. 2021).
AS 12.1 Churring Nightjar Caprimulgus griseatus Savanna Nightjar Caprimulgus affinis C. griseatus (including mindanensis) is split from C. affinis (Sangster et al. 2021).
PS 12.1 Eastern Rockhopper Penguin Eudyptes filholi Southern Rockhopper Penguin Eudyptes chrysocome Eastern Rockhopper Penguin Eudyptes filholi is a proposed split from E. chrysocome based on an integrative taxonomy including genetic and morphological differences and strict allopatry (Frugone et al. 2021).
PS 12.1 Kermadec Storm Petrel Pelagodroma albiclunis White-faced Storm Petrel Pelagodroma marina Kermadec Storm Petrel Pelagodroma albiclunis is a proposed split from White-faced Storm Petrel based on consistent striking differences in plumage and tail morphology (Gill et al. 2010).
PS 7.1 Yellow-billed Egret Ardea brachyrhyncha Intermediate Egret A. intermedia African Ardea brachyrhyncha is a proposed split from Asian A. intermedia on the basis of striking differences in breeding cycle soft part coloration (Cake et al. 2016; HBW/Birdlife).
PS 7.1 Plumed Egret Ardea plumifera Intermediate Egret A. intermedia Australasian Ardea plumifera is a proposed split from Asian A. intermedia on the basis of striking differences in breeding cycle soft part coloration, morphometrics and calls (HBW/Birdlife; Rasmussen & Anderton 2012).
PS 12.1 Walden's Scops Owl Otus modestus Oriental Scops Owl Otus sunia Otus modestus is a proposed split from O. sunia on the basis of unique vocalizations (Rasmussen & Anderton 2012).
  AS 12.1 Wetar Scops Owl Otus tempestatis Moluccan Scops Owl Otus magicus Wetar Scops Owl Otus tempestatis is split from Otus magicus based on distinct vocalizations (Eaton et al. 2021; HBW/Birdlife).
PS 12.1 Brown Wood Owl Strix indranee Sunda Wood Owl Strix leptogrammica Asian mainland Brown Wood Owl Strix indranee (seven subspecies) is a proposed split from Sunda Wood Owl S. leptogrammica based on vocalizations and plumage (Eaton et al. 2021). Note that the English name Brown Wood Owl follows the split species.
  AS 12.1 Brown-breasted Kingfisher Halcyon gularis White-throated Kingfisher Halcyon smyrnensis Brown-breasted Kingfisher H. gularis is split from H. smyrnensis based on plumage and vocalizations (Collar 2011b; Allen 2020; HBW/Birdlife).
  AS 12.1 Rufous-crowned Bee-eater Merops americanus Blue-throated Bee-eater Merops viridis Rufous-crowned Bee-eater Merops americanus is split from M. viridis based on morphologic differences (Collar 2011b; Allen 2020; HBW/Birdlife).
  AS 12.1 Malabar Flameback Chrysocolaptes socialis Greater Flameback Chrysocolaptes guttacristatus Chrysocolaptes socialis is split from C. guttacristatus based on differences in plumage and vocalizations (Rasmussen & Anderton 2012; Abhirami et al. 2021).
  AS 12.1 Blue-backed Parrot Tanygnathus everetti Azure-rumped Parrot Tanygnathus sumatranus Tanygnathus everetti (including duponti, freeri and burbidgii) is a proposed split from T. sumatranus based on plumage, eye color and genetic divergence (Arndt et al. 2019; Eaton et al. 2021). Note that the English name Blue-backed Parrot follows the split species.
  AS 12.1 Huon Bowerbird Amblyornis germanus MacGregor's Bowerbird Amblyornis macgregoriae Huon Bowerbird Amblyornis germanus is a proposed split from A. macgregoriae based on distinctive bower construction and unpublished molecular differences (Beehler & Pratt 2016; Gregory 2017).
  AS 12.1 Bacan Myzomela Myzomela batjanensis Sulawesi Myzomela Myzomela chloroptera Bacan Myzomela M. batjanensis is split from Sulawesi Myzomela M. chloroptera based on substantial differences in plumage and voice (Eaton et al. 2021, HBW/Birdlife).
AL 12.1 Indonesian Honeyeater Lichmera limbata Brown Honeyeater Lichmera indistincta Lichmera limbata is re-lumped with Brown Honeyeater L. indistincta based on indistinct plumage, vocalizations and genetics (Mees 2006; Dickinson & Christidis 2014; Eaton et al. 2021).
PS 12.1 Roving Cuckooshrike Coracina sumatrensis Bar-bellied Cuckooshrike Coracina striata Sundaic Coracina sumatrensis is a proposed split from endemic Philippine C. striata based on morphological differences and limited mtDNA data (Eaton et al. 2021).
PS 12.1 Visayan Cuckooshrike Coracina panayensis Bar-bellied Cuckooshrike Coracina striata Monotypic Coracina panayensis is a proposed split from C. striata based on morphological and bioacoustic differeces (Allen 2020;HBW/Birdlife).
  AS 12.1 Louisiade Monarch Symposiachrus melanopterus Spectacled Monarch Symposiachrus trivirgatus Monotypic Louisiade Monarch Symposiachrus melanopterus  is a proposed split from S. trivirgatus based on morphological differences and phylogenetic analysis (McCullough et al. 2021).
PS 12.1 Tagula Manucode Manucodia alter Glossy-mantled Manucode Manucodia ater Tagula Manucode M. alter is a proposed split from M. ater based on reportedly very different vocalizations and some morphological differences (Gregory 2017).
  AS 12.1 Flores Leaf Warbler Phylloscopus floresianus Timor Leaf Warbler Phylloscopus presbytes Phylloscopus floresianus is split from P. presbytes on the basis of plumage and vocal differences. (Eaton et al. 2021)
  AS 12.1 Guadalcanal Thicketbird Cincloramphus turipavae Melanesian (Santo) Thicketbird Cincloramphus whitneyi Split based on morphological differences and allopatry (Dutson 2011, HBW/Birdlife).
PS 12.1 Palawan Tit-Babbler Mixornis woodi Pin-striped Tit-Babbler Mixornis gularis Proposed split based on striking allopatry, plumage, and reported differences in calls (Collar & Robson 2020; Allen 2020).
PS 12.1 Brown-crowned (Phayre's) Scimitar Babbler Pomatorhinus phayrei Black-crowned (Coral-billed) Scimitar Babbler Pomatorhinus ferruginosus Pomatorhinus phayrei (including stanfordi, albogularis, orientalis and dickinsoni) is a proposed split from monotypic P. ferruginosus based on differences in plumage and vocalizations. English names under discussion (Rasmussen & Anderton 2012; HBW/Birdlife).
PS 12.1 Indochinese Babbler Malacopteron indochinense Scaly-crowned Babbler Malacopteron cinereum Malacopteron indochinense (Indochinese Babbler) is a proposed split from M. cinereum based on differences in plumage, vocalizations, and mtDNA (Eaton et al. 2021).
PS 12.1 Glissando Babbler, Leaflitter Babbler Pellorneum saturatum, Pellorneum poliogene Mourning (Short-tailed) Babbler Pellorneum malaccense Pellorneum saturatum and Pellorneum poliogene are proposed splits from P. malaccense based on pronounced vocal and genome-wide differences (Eaton et al. 2021). English names tentative.
PS 12.1 Bornean Swamp Babbler Pellorneum macropterum Malayan Swamp (White-chested) Babbler Pellorneum rostratum Proposed split based on vocal and genetic differences (Eaton et al. 2021). English names tentative.
PS 12.1 Modest Flowerpecker Dicaeum modestum Thick-billed Flowerpecker Dicaeum agile Modest Flowerpecker (including subspecies pallescens, atjehense and finschi) is a proposed split from Thick-billed Flowerpecker on the basis of vocalizations and morphology (Rasmussen & Anderton 2012; Eaton et al. 2021). But see Boesman (2016).
PS 12.1 Tenggara Flowerpecker Dicaeum obsoletum Thick-billed Flowerpecker Dicaeum agile Tenggara Flowerpecker (including subspecies tinctum) a proposed split from Thick-billed Flowerpecker (and is also distinguished from proposed Modest Flowerpecker) on the basis of vocalizations and morphology (Eaton et al. 2021). But see Boesman (2016).
PS 12.1 Orange-lined Sunbird Leptocoma juliae Purple-throated Sunbird Leptocoma sperata Proposed split based on differences in plumage (Allen 2020, HBW/Birdlife).
  AS 12.1 Ruvu Weaver Ploceus holoxanthus Eastern Golden Weaver Ploceus subaureus Resurrect P. holoxanthus as a unique species after having been mistakenly synonymized with P. subaureus for years. But critical analysis shows consistent morphological differences and it is quite genetically distinct (Turner & Kennedy 2019; Fjeldså et al. 2020; Oschadleus et al. 2021).
  AS 12.1 Australian Zebra Finch Taeniopygia castanotis (Sunda) Zebra Finch Taeniopygia guttata Australian Zebra Finch T. castanotis is split from (Sunda) Zebra Finch T. guttata based on differences in plumage, moderate mtDNA divergence. and evidence of assortive mating in captivity (Clayton 1990; Payne 2010; Olsson & Alström 2020; Eaton et al. 2021; HBW/Birdlife).
AL 12.1 Arabian Accentor Prunella fagani Radde's Accentor Prunella ocularis Arabian Accentor P. fagani is lumped with Radde's Accentor P. ocularis based on only minor differences in plumage, identical vocalizations, and insufficient genetic evidence to support a split. Treat as a non-migratory subspecies (Shirihai & Svensson 2018; Kirwan et al. 2021).
 

AS 12.1

African Chaffinch, Azores Chaffinch, Madeira Chaffinch, Canary Islands Chaffinch Fringilla spodiogenys, F. moreletti, F. maderensis, F. canariensis Eurasian (Common) Chaffinch Fringilla coelebs Fringilla spodiogenys (including africana and harterti), F. moreletti, F. maderensis and F. canariensis (including bakeri, ombriosa and palmae) are proposed splits from F. coelebs based on differences in plumage and genetics (Recuerda et al. 2021).
  AS 12.1 Chinese Long-tailed Rosefinch Carpodacus lepidus (Siberian) Long-tailed Rosefinch Carpodacus sibiricus Carpodacus lepidus (including henrici) is split from C. sibricus (including sanguinolentus and ussuriensis) based on genetic and plumage differences (Liu et al. 2020).
  AS 12.1 Masked Bunting Emberiza personata Black-faced Bunting  

Emberiza spodocephala

 

Monotypic E. personata is split from E. spodocephala based on morphological and genetic differences (Weissensteiner et al. 2014; Päckert et al. 2015; Brazil 2018; HBW/Birdlife).
New 12.2 Inti Tanager Heliothraupis oneilli Newly described genus and species within Thraupidae within the same clade as Black-goggled and Grey-headed Tanagers: Lane et al. 2021.
AS 11.2 Sangihe Lilac Kingfisher Cittura sanghirensis Sulawesi Lilac Kingfisher Cittura cyanotis Accepted split on the basis of genetic traits, plumage, structural and bioacoustic differences (Eaton et al. 2016, 2021; HBW/Birdlife).
PS 11.2 Mindanao Dwarf Kingfisher Ceyx mindanensis Luzon Dwarf Kingfisher Ceyx melanurus Proposed split of Ceyx mindanensis from C. melanurus (including  samarensis) on the basis of significant differences in plumage, some structural differences and phylogenetic analysis (Anderson et al. 2013; Allen 2020; HBW/BirdLife).
PS 11.2 Red-necked Falcon Falco ruficollis Red-headed Falcon Falco chicquera Red-necked Falcon F. ruficollis (including horsbrughi) is a proposed split from Asian Falco chicquera, renamed Red-headed Falcon, based on differences in plumage, preferred breeding habitat, and genetic differences (HBW/Birdlife).
  AS 11.2 Fulvous-faced Scrub Tyrant Euscarthmus fulviceps Fulvous-crowned Scrub Tyrant Euscarthmus meloryphus Proposed split based on morphological and vocal differences (Franz et al. 2020; SACC 898). English names established in SACC 916.
PS 11.2 Guadalcanal Fantail Rhipidura ocularis Brown (Bougainville) Fantail Ripidura drownei Proposed split based on plumage and vocal differences (Dutson 2011; Gregory 2017; HBW/Birdlife).
PS 11.2 Vanuatu Streaked Fantail, Fiji Streaked Fantail Rhipidura spilodera, Rhipidura layardi (New Caledonia) Streaked Fantail Rhipidura verreauxi Vanuatu Streaked Fantail Rhipidura spilodera and Fiji Streaked Fantail Rhipidura layardi (including erythronota and rufilateralis) are proposed splits from New Caledonia Streaked Fantail R. verreauxi based on plumage and vocal differences (HBW/BirdLife).
PS 11.2 Angola (Green-crowned) Greenbul Phyllastrephus viridiceps White-throated Greenbul Phyllastrephus albigularis Proposed split based on plumage and reported bioacoustic differences (HBW/Birdlife). English name under discussion.
PS 11.2 Sulu Bulbul Hypsipetes haynaldi Yellowish Bulbul Hypsipetes everetti Proposed split based on vocal and plumage differences (Allen 2020; HBW/Birdlife).
PS 11.2 Malagasy Plain Martin Riparia cowani Brown-throated Martin Riparia paludicola Proposed split based on morphometrics, some plumage differences and reported differences in calls (HBW/Birdlife). English name under discussion.
PS 11.2 Snares Fernbird Poodytes caudatus New Zealand Fernbird Poodytes punctatus Proposed split based on plumage and morphometrics (HBW/Birdlife).
PS 11.2 Huambo Cisticola Cisticola bailunduensis Rock-loving Cisticola Cisticola emini Proposed split based on morphology, strong bioacoustic differences and different habitat (HBW/Birdlife).
PS 11.2 Sulu Tit-Babbler Macronus kettlewelli Brown Tit-Babbler Macronus striaticeps Proposed split from based on major plumage and iris color differences (Allen 2020).
PS 11.2 Horsfield's Thrush Zoothera horsfieldi Scaly Thrush Zoothera dauma Proposed split based on vocal, plumage and morphometric traits (Eaton et al. 2016). Apparently closer phylogenetically to Z. aurea than to Z. dauma (Fjeldså et al. 2020).
PS 11.2 Western (White-winged) Magpie-Robin Copsychus pica Madagascan Magpie-Robin Copsychus albospecularis Proposed split based on morphometrics, bioacoustics, differences in plumage and display, and parapatric distribution (HBW/Birdlfe). English name under discussion.
AS 11.2 Visayan Shama Copsychus superciliaris White-browed Shama Copsychus luzoniensis Accepted split based on genetic and plumage differences (Lim et al. 2010; Collar 2011b; Sánchez-González et al. 2015, HBW/BLI, Allen 2020).
PS 11.2 Volcano Sunbird Cinnyris preussi Rift (Northern Double-collared) Sunbird Cinnyris reichenowi Proposed split based on genetic, morphological, and ecological divergence (Cooper et al. 2021).
  AS 11.2 Arabian Sunbird Cinnyris hellmayri Shining Sunbird Cinnyri habessinicus Arabian Sunbird Cinnyris hellmayri (including kinneari) is split from Shining Sunbird C. habessinicus on the basis of distinctive male and female plumages, larger size, and reportedly different vocalizations (Shirihai & Svensson 2018; HBW/Birdlife).
PS 11.2 Black-breasted Sunbird Cinnyris idenburgi Olive-backed Sunbird Cinnyris jugularis Proposed split based on plumage and morphometric differences (Gregory 2017; HBW/Birdlife).
PS 11.2 Grand Comoro Sunbird, Moheli Sunbird Cinnyris moebii, Cinnyris voeltzkowi  Madagascar (Malagasy) Sunbird Cinnyris notatus Proposed splits on the basis of differences in morphology and genetic divergence (Warren et al. 2003; HBW/Birdlife).
PS 11.2 Upemba Masked Weaver Ploceus upembae Katanga Masked Weaver Ploceus katangae Proposed split based on differences in plumage and preliminary genetic data (Craig et al. 2011; HBW/Birdlife).
PS 11.2 Chestnut-and-black Weaver Ploceus castaneofuscus Vieillot's Black Weaver Ploceus nigerrimus Proposed split based on marked differences in plumage and reported differences in breeding behavior (Crook 1963; HBW/Birdlife).
PS 11.2 Grand Comoro Fody Foudia consobrina Red-headed (Comoros) Fody Foudia eminentissima Foudia consobrina is a proposed split from F. eminentissima based on differences in plumage, evidently some vocal differences, and sister relationship with other Comoros taxa (Warren et al. 2011; Safford & Hawkins 2013; HBW/Birdlife; de Silva et al. 2019).
PS 11.2 Malayan Bullfinch Pyrrhula waterstradti Brown Bullfinch Pyrrhula nipalensis Proposed split based on differences in plumage and call (Puan et al. 2020; HBW/Birdlife)
  Done    
       
PS 11.2 Parana Chachalaca Ortalis remota Speckled Chachalaca Ortalis guttata Recently proposed as a distinct species (Silveira et al. 2017; SACC 902). Did not pass SACC.
  AS 11.2 Kai Coucal Centropus spilopterus Pheasant Coucal Centropus phasianinus Kai Coucal Centropus spilopterus is relisted as a proposed split from Pheasant Coucal C. phasianinus based on its distinctive plumage and allopatric distribution (Eaton et al. 2021; HBW/Birdlife)
  NEW 10.1

Reposted

Whistling Long-tailed Cuckoo Cercococcyx lemaireae Dusky Long-tailed Cuckoo C. mechowi Morphologically 'identical' western populations proposed (10.1) to be recognized as a new species Cercococcyx lemaireae based on song and call differences from C. mechowi (first noted by Dowsett-Lemaire 1997) (Boesman & Collar 2019). Apparent narrow hybrid zone in Bakossi Mountains, Cameroon.
  AS 11.2 Philippine Collared Dove Streptopelia dusumieri Sunda (Island) Collared Dove Streptopelia bitorquata Accepted split based on vocal and plumage differences (Collar 2011b; Eaton et al. 2016; Allen 2020; HBW/Birdlife).
  AS 11.2 Burmese Collared Dove Streptopelia xanthocycla Eurasian Collared Dove Streptopelia decaocto Accepted split based on plumage, unique eye-ring color, song, and geographical isolation (HBW/Birdlife).
PS 11.2 Western Spotted Dove Spilopelia suratensis Eastern Spotted Dove Spilopelia chinensis Western Spotted Dove (including ssp ceylonensis) is a proposed split based on differences in plumage, soft-part colors and vocalizations (Rasmussen & Anderton 2012; HBW/Birdlife).
  AS 11.2 Raiatea Fruit Dove Ptilinopus chrysogaster Grey-green Fruit Dove Ptilinopus purpuratus Accepted split based on plumage differences and molecular data (Cibois et al. 2014; Thibault & Cibois 2017; HBW/Birdlife).
  AS 11.2 Geelvink Fruit-dove Ptilinopus speciosus Yellow-bibbed Fruit Dove Ptilinopus solomonensis Accepted split based on plumage and vocal differences (Gregory 2017; HBW/Birdlife).
  AS 11.2 Malabar Imperial Pigeon Ducula cuprea Mountain Imperial Pigeon Ducula badia Accepted split based on differences in morphology and voice (HBW/Birdlife; Niranjana & Praveen 2021).
  AS 11.2 Geelvink Imperial Pigeon Ducula geelvinkiana Spice Imperial Pigeon Ducula myristicivora Accepted split based on vocal, morphological and plumage differences (Beehler & Pratt 2016; Gregory 2017; HBW/Birdlife).
  AS 11.2 Ryukyu Green Pigeon Treron permagnus Taiwan Green Pigeon Treron formosae Accepted split of Ryukyu Green Pigeon (including ssp medioximus) from Taiwan (Whistling) Green Pigeon (including ssp filipinus) based on morphological and vocal differences (Brazil 2009; HBW/Birdlife).
PS 11.2 Eastern Bronze Ground Dove Pampusana johannae (Western) Bronze Ground Dove Pampusana beccarii Proposed split based on differences in vocalizations, plumage, elevation. and habitat (Gregory 2017; HBW/Birdlife).
  AS 11.2 New Caledonian Buttonquail Turnix novaecaledoniae Painted Buttonquail Turnix varius Accepted split following HBW/Birdlife.
PS 11.2 African Woolly-necked Stork Ciconia microscelis Asian Woolly-necked Stork Ciconia episcopus Proposed split of Ciconia microscelis from C. episcopus (including neglecta) based on pronounced plumage differences (Eaton et al. 2021; HBW/Birdlife).
  AS 11.2 Banggai Scops Owl Otus mendeni Sulawesi Scops Owl Otus manadensis Accepted split based on vocalizations (Eaton et al. 2016, 2021; HBW/Birdlife).
  AS 11,2 Guadalcanal Owl, Malaita Owl, Makira Owl Athene granti, Athene malaitae, Athene roseoaxillaris West Solomons Owl Athene jacquinoti Accepted splits based on plumage and bioacoustic differences (Dutson 2011; HBW/Birdlife).
  AS 11.2 Ethiopian Bee-eater Merops lafresnayii Blue-breasted Bee-eater Merops variegatus Merops lafresnayii is an accepted split from M. variegatus based on morphological and vocal differences. Differs from the similarly sized M. oreobates by its different plumage and voice (Redman et al. 2016; Fry et al. 2020; HBW/Birdlife).
  AS 11.2 African Green Bee-eater, Arabian Green Bee-eater Merops viridissimus, Merops cyanophrys Asian Green Bee-eater Merops orientalis Merops viridissimus (including ssp flavoviridis and cleopatra) and Merops cyanophrys (including ssp muscatensis) are accepted splits from Merops orientalis based on significant differences in morphology and voice (Fry et al. 2020; HBW/Birdlife).
  AS  11.2 Sumatran Woodpecker Picus dedemi Grey-headed Woodpecker Picus canus Accepted split based on significant differences in plumage and voice (Eaton et al. 2021; HBW/Birdlife).
  AS 11.2 Southern Sooty Woodpecker Mulleripicus fuliginosus Northern Sooty Woodpecker Mulleripicus funebris Accepted split from M. funebris (including mayri and parkesi) on the basis of structural and plumage differences and possible vocal differences (Collar 2011b; Allen 2020; HBW/Birdlife, Clements).
  NEW 10.1

Reposted

Western Yellow-spotted Barbet Buccanodon dowsetti (Eastern) Yellow-spotted Barbet B. duchaillui Morphologically 'identical' western populations proposed (10.1) to be recognized as Buccanodon dowsetti sp. nov. based on very different vocals (first noted by Borrow & Demey 2001) (Boesman & Collar 2019). Replaces B. duchaillui west of Dahomey Gap.
  AS 11.2 Usambiro Barbet Trachyphonus usambiro D'Arnaud's Barbet Trachyphonus darnaudii Accepted split based on plumage and vocal differences (Sibley & Monroe 1990; Stevenson & Fanshaw 2002; HBW/Birdlife).
  AS 11.2 Comoros Black Parrot Coracopsis sibilans Lesser Vasa Parrot Coracopsis nigra Accepted split based on genetic divergence and significant vocal and size difference (Kundu et al. 2012; HBW/Birdlife).
  AS 11.2 Simeulue Parrot Psittinus abbotti Blue-rumped Parrot Psittinus cyanurus Accepted split based on substantial structural and plumage differences (Eaton et al. 2016; HBW/Birdlife).
PS 11.2 Snow Mountain Tiger Parrot Psittacella lorentzi Painted Tiger Parrot Psittacella picta Proposed split based on differences in plumage (Gregory 2017; HBW/Birdlife).
PS 11.2 Caatinga Antshrike Thamnophilus capistratus Barred Antshrike Thamnophilus doliatus Proposed split based on bioacoustic, morphological and phylogenetic differences and reported sympatry/parapatry (SACC 890).
  AS 11.2 Perija Antpitta, Sierra Nevada Antpitta, Muisca Antpitta, Cajamarca Antpitta, Junin Antpitta, Urubamba Antpitta, Bolivian Antpitta Grallaria saltuensis, G. spatiator. G. rufula, G. cajamarcae, G. obscura, G. occabambae, G. cochabambae Rufous Antpitta Grallaria rufula Accepted split of currently recognized subspecies to full species based on phylogenetic, vocal and, where pertinent, morphological differences (Chesser et al. 2020; Isler et al. 2020; SACC 883). English name of G. spatiator is provisional.
  AS 11.2 Equatorial Antpitta Grallaria saturata Rufous Antpitta Grallaria rufula Accepted split of resurrected subspecies to full species based on phylogenetic and vocal differences (Chesser et al. 2020; Isler et al. 2020; SACC 883).
  AS 11.2 Chami Antpitta, Chachapoya Antpitta, Panao Antpitta, Oxapampa Antpitta, Ayacucho Antpitta, Puno Antpitta Grallaria alvarezi, Grallaria gravesi, Grallaria oneilli, Grallaria centralis, Grallaria ayacuchensis, Grallaria sinaensis Rufous Antpitta Grallaria rufula Accepted new species within the Rufous Antpitta complex based on phylogenetic, vocal and, where pertinent, morphological differences (Chesser et al. 2020; Isler et al. 2020; SACC 883). English names of G. gravesi and G. oneilli are provisional.
  AS 11.2 Biak Myzomela Myzomela rubrobrunnea Dusky Myzomela Myzomela obscura Biak Myzomela Myzomela rubrobrunnea is split from Dusky Myzomela M. obscura based on morphological differences (Gregory 2017; HBW/Birdlife).
  AS 11.2 Moluccan Myzomela, Red-tinged Myzomela Myzomela simplex, Myzomela rubrotincta Dusky Myzomela Myzomela obscura Moluccan Myzomela Myzomela simplex (including ssp. mortyana) and Red-tinged Myzomela Myzomela rubrotincta are splits from Myzomela obscura based on differences in plumage, size and DNA (Eaton et al. 2016, 2021; HBW/Birdlife).
  AS 11.2 Reddish Myzomela Myzomela erythrina  Red Myzomela Myzomela cruentata Reddish Myzomela Myzomela erythrina (including lavongai, cantans, vinacea) is split from Red Myzomela based on differences in morphology, plumage and elevation (Gregory 2017; HBW/Birdlife).
  AS 11.2 Long-billed Myzomela Myzomela longirostris Red-collared Myzomela Myzomela rosenbergii Accepted split based on morphometric differences and distinctive female plumage (Beehler & Pratt 2016; Gregory 2017; HBW/Birdlife).
  AS 11.2 Rennell Gerygone Gerygone citrina Fan-tailed Gerygone Gerygone flavolateralis Accepted split based on differences in plumage and eye color, and biogeography (Dutson 2011; HBW/Birdlife).
  NEW 11.2 Satin Berrypecker Melanocharis citreola Streaked Berrypecker Melanocharis striativentris Newly described species based on plumage and phylogenetic analysis (Milá et al. 2021).
  AS 11.2 Spotted Berrypecker Rhamphocharis piperata Thick-billed (formerly Spotted) Berrypecker Rhamphocharis crassirostris Rhamphocharis piperata is split from R. crassirostris based on morphological differences (Beehler & Pratt 2016; Gregory 2017; HBW/Birdlife). English name Spotted Berrypecker is assigned to the split species to reflect its female plumage.
  AS 11.2 Western Crested Berrypecker Paramythia olivacea Eastern Crested Berrypecker Paramythia montium Accepted split based on morphological differences (Beehler & Pratt 2016; Gregory 2017; HBW/Birdlife).
  AS 11.2 West African Batis Batis occulta Fernando Po Batis Batis poensis Accepted split based on differences in plumage and size (Sinclair & Ryan 2003; Clements; HBW/Birdlife).
PS 11.2 Comoros Blue Vanga Cyanolanius comorensis (Madagascar) Blue Vanga Cyanolanius madagascarinus Comoros Blue Vanaga Cyanolanius comorensis (including bensoni) is a proposed split from Madagascar Blue Vanga C. madagascarinus based on morphological, plumage and vocal differences (Safford & Hawkins 2013; HBW/Birdlife).
  AS 11.2 Biak Triller Lalage leucoptera Black-browed Triller Lalage atrovirens Accepted split based on differences in plumage and voice (Beehler & Pratt 2016; Gregory 2017; HBW/Birdlife).
  AS 11.2 Giant Grey Shrike Lanius giganteus Chinese Grey Shrike Lanius sphenocercus Accepted split on the basis of strong morphological divergence including where ranges approach; habitat differences; and genetic divergence (Svensson et al. 2009; Olsson et al. 2010; Panov et al. 2011; Dickinson & Christidis 2014).
  AS 11.2 Biak Fantail Rhipidura kordensis Northern Fantail Rhipidura rufiventris Accepted split on the basis of vocal and plumage differences (Gregory 2017; HBW/Birdlife).
  AS 11.2 Tanimbar Monarch Carterornis castus White-naped Monarch Carterornis pileatus Accepted split based on structural, plumage and bioacoustic differences (King 1997; Eaton et al. 2016; HBW/Birdlife; Clements). The English name Tanimbar Monarch is prefered over Loetoe Monarch following HBW/Birdlife and Eaton et al. (2016).
  AS 11.2 Mussau Flycatcher, Velvet Flycatcher, Dyaul Flycatcher Myiagra hebetior, Myiagra eichhorni, Myiagra cervinicolor Velvet Flycatcher Myiagra hebetior Accepted three-way split of Myiagra hebetior based on morphometric differences, strikingly different female plumage. and vocalizations (Gregory 2017; HBW/Birdlife). Note English name Velvet Flycatcher is assigned to Myiagra eichhorni.
  AS 11.2 Wetar Oriole Oriolus finschi Timor (Olive-brown) Oriole Oriolus melanotis Accepted split based on strong genetic divergence and substantial vocal and plumage differences (Eaton et al. 2016; Jønsson et al. 2019; HBW/Birdlife).
  AS 11.2 Arabian Lark Eremalauda eremodites Dunn's Lark Eremalauda dunni Accepted split based on differences in size, small but consistent differences in plumage, and reported deep genetic divergence (Shirihai & Svensson 2018).
  AS 11.2 Sumatran Bulbul Ixos sumatranus Javan (Sunda) Bulbul Ixos virescens Accepted split based on plumage and vocal differences (Eaton et al. 2016).
  AS 11.2 Camiguin Bulbul Hypsipetes catarmanensis Yellowish Bulbul Hypsipetes everetti Accepted split based on vocal and plumage differences (Allen 2020; HBW/Birdlife).
  AS 11.2 Siberian House Martin Delichon lagopodum Common House Martin Delichon urbicum
Accepted split based on morphological and vocal differences and syntopic nesting (Leader et al. 2021).
  AS 11.2 Tenggara Paradise Flycatcher Terpsiphone floris Blyth's Paradise Flycatcher Terpsiphone affinis Accepted split based on bioacoustic, morphological and phylogenetic data. Includes ssp. sumbaensis (Eaton et al. 2016; Fabre et al. 2012).
  AS 11.2 Bornean Black Magpie Platysmurus aterrimus Malayan Black Magpie Platysmurus leucopterus Accepted split based on substantial plumage and vocal differences (Eaton et al. 2016; BLI/HBW).
  AS  11.2 Small Crow Corvus samarensis Slender-billed Crow Corvus enca Accepted split based on significant vocal differences and morphology. Includes ssp. sierramadrensis (see Allen 2020).
  AS 11.2 Palawan Crow Corvus pusillus Slender-billed Crow Corvus enca Accepted split based on plumage, bill morphology and major vocal differences (Allen 2020).
  AS 11.2 Obi Paradise-crow Lycocorax obiensis Halmahera Paradise-crow Lycocorax pyrrhopterus Accepted split based on pronounced vocal and plumage differences (Eaton et al. 2016; HBW/Birdlife).
  AS 11.2 Black-capped Robin Heteromyias armiti  Ashy Robin Heteromyias albispecularis Black-capped Robin Heteromyias armiti (including rothschildi) is split from H. albispecularis based on differences in genetics, plumage and vocalizations (Christidis et al. 2011; Beehler & Pratt 2016; Gregory 2017; HBW/Birdlife).
PS 11.2 Ishigaki Tit Parus nigriloris Japanese Tit Parus minor Proposed split based on striking differences in plumage and evidently in vocalizations (Brazil 2018).
AL 11.2 Alpine Leaf Warbler Phylloscopus occisinensis Tickell's Leaf Warbler Phylloscopus affinis Accepted lump based on bioacoustic, morphological and phylogenetic data. Treat as a subspecies (Zhang et al. 2019).
  AS 11.2 Lompobattang Leaf Warbler Phylloscopus sarasinorum Sulawesi Leaf Warbler Phylloscopus nesophilus Accepted split based on bioacoustic and morphological differences. Note that new English name follows the more range-restricted taxon which retains the scientific name of the formerly combined species. The more widespread form, P. nesophilus, retains the English name of "Sulawesi Leaf Warbler" (Berryman & Eaton 2020).
  NEW 11.2 Kilombero Cisticola Cisticola bakerorum   Newly described species based on phylogenetics, morphology, and distinctive vocalizations (Fjeldså et al. 2020).
  NEW 11.2 White-tailed Cisticola Cisticola anderseni   Newly described species based on phylogenetics, morphology, and distinctive vocalizations (Fjeldså et al. 2020).
  AS 11.2 Delicate Prinia Prinia lepida Graceful Prinia Prinia gracilis Split of Prinia lepida (including akyildizi, irakensis, carpenteri, lepida, and stevensi) from P. gracilis is based on differences in morphometrics, plumage, and vocalizations, and mtDNA divergence (Alström et al. 2021).
  AS 11.2 Brown-tailed Apalis Apalis flavocincta Yellow-breasted Apalis Apalis flavida Brown-tailed Apalis Apalis flavocincta (including viridiceps) is split from A. flavida based on habitat, plumage and vocal differences (Sibley & Monroe 1990; HBW/Birdlife; Borrow pers. comm.; Redman pers. comm.).
PS 11.2 Yunnan Parrotbill Sinosuthora ricketti Brown-winged Parrotbill Sinosuthora brunnea Proposed split based on DNA analysis, morphology and difference in calls (Deignan 1964; Robson 2007; Penhallurick & Robson 2009; Yeung et al. 2011; HBW/Birdlife). However, status of the little-studied nominate ssp. S. b. brunnea, which has some morphological features shared with ricketti, means further analysis of the Brown-winged Parrotbill complex is required (Eaton, pers. comm.).
  AS 11.2 Grey-hooded Babbler Cyanoderma bicolor Chestnut-winged Babbler Cyanoderma erythropterum Accepted split based on plumage, bioacoustics and phylogenetic divergence (Eaton et al. 2016; HBW/Birdlife; Cros et al. 2020). Includes rufum.
  AS 11.2 Visayan Babbler Sterrhoptilus affinis Black-crowned (Calabarzon) Babbler Sterrhoptilus nigrocapitatus Accepted split based on substantial phylogenetic divergence and paraphyly, as well as consistent plumage differences (Hosner et al. 2018).
  AS 11.2 Sunda Scimitar Babbler Pomatorhinus bornensis Javan (Chestnut-backed) Scimitar Babbler Pomatorhinus montanus Accepted split based on substantial vocal differences and fairly distinct plumage (Eaton et al. 2016).
  AS 11.2 Malayan Black-capped Babbler, Bornean Black-capped Babbler Pellorneum nigrocapitatum, Pellorneum capistratoides Javan Black-capped Babbler Pellorneum capistratum Accepted split of P. nigrocapitatum and P. capistratoides (including morrelli) from P. capistratum on the basis of pronounced vocal, plumage and genome-wide differences (Puan et al. 2020; Eaton et al. 2021, HBW/Birdlife).
  AS 11.2 Green-fronted White-eye Zosterops minor Black-fronted White-eye Zosterops chrysolaemus Accepted split based on distinct morphological differences (Beehler & Pratt 2016; Gregory 2017). Includes rothschildi as a subspecies. Note that the species epithet "minor" follows the split form, while the name "chrysolaemus" is assigned to the form retaining the original English name.
  AS 11.2 Oya Tabu White-eye Zosterops crookshanki Capped White-eye Zosterops fuscicapilla Accepted split based on morphological and vocal differences (Beehler & Pratt 2016; Gregory 2017).
  AS 11.2 Bougainville White-eye Zosterops hamlini Grey-throated White-eye Zosterops rendovae Accepted split based on phylogenetic divergence and morphological differences (Moyle et al. 2009; Gregory 2017).
  AS 11.2 Guadalcanal White-eye Zosterops oblitus Grey-throated White-eye Zosterops rendovae Accepted split based on deep phylogenetic divergence (Manthey et al. 2020).
  AS 11.2 Palawan Fairy-bluebird Irena tweeddalii Asian Fairy-bluebird Irena puella Accepted split based on phylogenetic divergence and morphometric and plumage differences (HBW/BLI; Moltesen et al. 2012; Allen 2020).
PS 11.2 Visayan Fairy-bluebird, Mindanao Fairy-bluebird Irena ellae, Irena melanochlamys Luzon (Philippine) Fairy-bluebird Irena cyanogastra Proposed splits based on phylogenetic divergence and differences in plumage (Moltesen et al. 2012; Hosner et al. 2018).
  AS 11.2 Siamese Pied Myna, Javan Pied Myna Gracupica floweri, Gracupica jalla (Indian) Pied Myna Gracupica contra Accepted splits based on genetic divergence and morphological features. G. floweri and G. jalla are monotypic. G. contra includes superciliaris as a subspecies and sordida synonymized with the nominate (Baveja et al. 2020).
  AS 11.2 Visayan Rhabdornis Rhabdornis rabori Stripe-breasted Rhabdornis Rhabdornis inornatus Accepted split based on plumage and structural differences (Collar 2011b; Allen 2020; HBW/Birdlife; Clements).
  AS 11.2 Tanzanian Illadopsis Illadopsis distans Pale-breasted Illadopsis Illadopsis rufipennis Split Illadopsis distans from I. rufipennis based on morphological and bioacoustic differences (Zimmerman et al. 1996; Sinclair & Ryan 2003; Nguembock et al. 2009; HBW/Birdlife).
  AS 11.2 Dayak Blue Flycatcher Cyornis montanus Javan Blue Flycatcher Cyornis banyumas Accepted split based on vocal, plumage and morphometric traits (Eaton et al. 2016; Gwee et al. 2019).
  AS 11.2 Sumba Jungle Flycatcher Cyornis stresemanni Flores (Russet-backed) Jungle Flycatcher Cyornis oscillans Accepted split based on plumage, structural and vocal differences (Eaton et al. 2016, 2021; HBW/Birdlife).
  AS 11.2 Crocker Jungle Flycatcher Cyornis ruficrissa Rufous-tailed Jungle Flycatcher Cyornis ruficauda Accepted split based on bioacoustic differences. Includes ssp. isola (Gwee et al. 2019; Eaton et al. 2016).
  AS 11.2 Sulu Jungle-flycatcher Cyornis ocularis Rufous-tailed Jungle Flycatcher Cyornis ruficauda Accepted split based on vocalizations and distinctive eye-ring color (Gwee et al. 2019; Allen 2020).
  AS 11.2 Chinese Vivid Niltava Niltava oatesi Taiwan Vivid Niltava Niltava vivida Accepted split based on morphometric, plumage, and bioacoustic differences (Rasmussen & Anderton 2005; HBW/Birdlife). English names tentative.
  AS 11.2 Short-tailed Akalat Sheppardia poensis Bocage's Akalat Sheppardia bocagei Sheppardia poensis (including ssp granti, kungwensis, kaboboensis, and schoutedeni) is split from Sheppardia bocagei based on significant bioacoustic, morphological, and habitat differences (Prigogine 1987; Borrow & Demey 2001; HBW/Birdlife).
  AS 11.2 Okinawa Robin Larvivora namiyei Ryukyu Robin Larvivora komadori Accepted split based on deep genetic divergence coupled with bioacoustic and morphological differences (Saitoh et al. 2015; Brazil 2018; HBW/Birdlife).
PS 11.2 Izu Robin Larvivora tanensis Japanese Robin Larvivora akahige Proposed split based on morphological, bioacoustic and habitat differences (Brazil 2018; HBW/Birdlife).
  AS 11.2 Ryukyu Flycatcher Ficedula owstoni Narcissus Flycatcher Ficedula narcissina Accepted split based on genetic and bioacoustic differences (Leader et al. 2013; Dong et al. 2015; Saitoh et al. 2015; Brazil 2018; HBW/Birdlife). Treat as monotypic following Ornithological Society of Japan (2000). Includes ssp. shonis and jakuschima.
  AS 11.2 Atlas Wheatear Oenanthe seebohmi Northern Wheatear Oenanthe oenanthe Split based on striking differences in plumage and some bioacoustic differences (Shirihai & Svensson 2018; HBW/Birdlife).
PS 11.2 Rusty-breasted Wheatear Oenanthe frenata Buff-breasted (Red-breasted) Wheatear Oenanthe bottae Proposed split based on morphological differences (HBW/Birdlife).
  AS 11.2 Maghreb Wheatear Oenanthe halophila Mourning Wheatear Oenanthe lugens Accepted split based on differences in degree of sexual dimorphism, song, and habitat (Shirihai & Svensson 2018).
  AS 11.2 Basalt Wheatear Oenanthe warriae Mourning Wheatear Oenanthe lugens Accepted split based on unique habitat, apparent lack of mixing, and distinctive plumage (Shirihai & Svensson 2018).
  AS 11.2 Javan Leafbird Chloropsis cochinchinensis Blue-winged Leafbird Chloropsis moluccensis Accepted split of Chloropsis cochinchinensis of Java and the widespread Blue-winged Leafbird C. moluccensis based on differences in plumage and deep mtDNA divergence (Moltesen et al. 2012; HBW/BLI; Eaton et al. 2016). Note change of scientific name of Blue-winged Leafbird with the split.
  AS 11.2 Greyish-crowned Leafbird Chloropsis lazulina Orange-bellied Leafbird Chloropsis hardwickii Accepted split based on phylogenetic divergence and plumage differences. Includes ssp. melliana (HBW/BLI; Moltesen et al. 2012)
  AS 11.2 Flame-crowned Flowerpecker Dicaeum kampalili Yellow-crowned Flowerpecker Dicaeum anthonyi Accepted split based on plumage differences (HBW/BLI; Allen 2020). Note change of English name of D. anthonyi with the split.
PS 11.2 Northern Buzzing (Obscure) Flowerpecker Dicaeum obscurum Southern Buzzing (White-bellied) Flowerpecker Dicaeum hypoleucum Proposed split based on phylogenetic divergence, major differences in plumage, and differences in calls (Hosner et al. 2018; Allen 2020). English names under discussion.
  AS 11.2 Yellow-chinned Sunbird Anthreptes tephrolaemus Grey-chinned Sunbird Anthreptes rectirostris Split based on differences in plumage and very different calls (HBW/Birdlife, Borrow in litt.).
  AS 11.2 Stripe-breasted Seedeater Crithagra striatipectus Reichard's Seedeater Crithagra reichardi Accepted split based on consistent differences in plumage (Turner 2013, Turner & Pearson 2015; Dickinson & Christidis 2014; Redman pers. comm., HBW/Birdlife).
  AS 11.2 Mindanao Serin Chrysocorythus mindanensis Indonesian (Mountain) Serin Chrysocorythus estherae Accepted split based on significant plumage and structural differences (HBW/Birdlife; Eaton et al 2016; Allen 2020).
  AS 11.2 Cinnamon-bellied Saltator, Olivaceous Saltator Saltator grandis, Saltator olivascens Blue-grey (Greyish) Saltator Saltator coerulescens Accepted splits based on vocal and genetic differences (Chaves et al. 2013; SACC 879). S. grandis includes ssp. vigorsii, plumbiceps, yucatanensis, hesperis and brevicaudus. S. olivascens includes ssp. plumbeus and brewsteri. English names tentative pending SACC.
  AS 11.1 Yungas Guan Penelope bridgesi Dusky-legged Guan  Penelope obscura
Split based on strong allopatry and biometric differences (Evangelista-Vargas & Silveira 2018; SACC 875).
PS 11.1 Yunnan Pheasant Phasianus elegans
Turkestan (Common) Pheasant Phasianus colchicus Proposed split based primarily on mtDNA divergence (Liu et al. 2020). Monotypic.
PS 11.1 Chinese Pheasant Phasianus torquatus
Turkestan (Common) Pheasant Phasianus colchicus Proposed split based primarily on mtDNA divergence (Liu et al. 2020). Polytypic. Includes torquatus, strauchi–vlangallii and formosanus groups.
AL 11.1 Vaurie's Nightjar Caprimulgus centralasicus European Nightjar Caprimulgus europaeus Taxonomic status unclear. Known only from a single specimen. Recent mtDNA studies suggest that it may be synonymous with European Nightjar C. e. plumipes (Schweizer et al. 2020; Kirwan & Schweizer 2020).
AL 11.1 Mato Grosso Swift Chaetura viridipennis Chapman's Swift C. chapmani Restoration of Mato Grosso Swift to a subspecies of Chapman's Swift is based on genetic revision of genus Chaetura (Chesser et al. 2018, SACC 841).
  AS 11.1 Ashy-tailed Swift Chaetura andrei Vaux's Swift C. vauxi Accepted split of Ashy-tailed Swift from Vaux's Swift is based on genetic revision of genus Chaetura (Chesser et al. 2018, SACC 841)
  AS 11.1 Diamantina Sabrewing Campylopterus diamantinensis
Grey-breasted Sabrewing Campylopterus largipennis Accepted split from C. largipennis based on Lopes et al. (2017); SACC 755. English name adopted from SACC 859.
PS 11.1
"Northern" Silvery Grebe Podiceps juninensis "Southern" Silvery Grebe Podiceps occipitalis
Proposed split based on morphology, non-migratory behavior, lack of distinct breeding plumage, and higher-pitched voice. English names provisional (SACC 864).
  AS 11.1 Magellanic Snipe Gallinago magellanica
South American Snipe Gallinago paraguaiae Accepted split based on vocalizations and displays (Miller et al. 2019; SACC 843). English names provisional.
PS 11.1 Galapagos Frigatebird Fregata magnificens Magnificent Frigatebird Fregata rothschildi Proposed split based on strong genetic differentiation between the isolated Galapagos population, F. magnificens and the widespread taxon, F. rothschildi (Hailer et al. 2011; SACC 872).
  AS 11.1 Annobon Scops Owl Otus feae
African Scops Owl Otus senegalensis Split based on morphological and vocal differences (Collar & Boesman 2020).
  AS 11.1 Arabian Eagle-Owl Bubo milesi
Spotted Eagle-Owl Bubo africanus Accepted split based on morphological and acoustic differences (Collar & Boesman 2019).
PS 11.1 Northern Olive Woodpecker Dendropicos ruwenzori Southern Olive Woodpecker Dendropicos griseocephalus Proposed split based on molecular species delimitation methods and estimates of gene flow. D. ruwenzori includes subspecies kilimensis (Fuchs et al. 2020).
AL 11.1 Northern Crested Caracara Caracara cheriway (Southern) Crested Caracara Caracara plancus Accepted lump based on short genetic distance and indiscriminately mixed plumage characters in their area of overlap (SACC 878).
  AS 11.1 Ornate Pitta Pitta concinna
Elegant Pitta Pitta elegans
Split based on bioacoustic and plumage differences. Parent species, P. elegans, retains its original English name (Yue et al. 2020).
  AS 11.1 Banda Sea Pitta Pitta vigorsii
Elegant Pitta Pitta elegans
Split based on bioacoustic and plumage differences (Yue et al. 2020).
PL 11.1 Scalloped Woodcreeper Lepidocolaptes falcinellus Scaled Woodcreeper Lepidocolaptes squamatus Proposed lump based on minor plumage differences,  vocal (call) similarities, and lack of genetic data (SACC 881).
AL 11.1 Layard's Woodcreeper Lepidocolaptes layardi Rondonia Woodcreeper Lepidocolaptes fuscicapillus Accepted lump based on lack of significant vocal and genetic differences. English name of the fused species ultimately to be determined but treat as Rondonia Woodcreeper for now (SACC 868).
  AS 11.1 Chinchipe Spinetail Synallaxis chinchipensis
Necklaced Spinetail Synallaxis stictothorax Accepted split based on morphological and vocal distinctions (Stopiglia et al. 2020; SACC 882).
  AS 11.1 Northern Rufous-winged Antwren Herpsilochmus frater Southern Rufous-winged Antwren Herpsilochmus rufimarginatus Split based on significant vocal differences and some phenotypic differences. English names tentative. H. frater includes exiguus as a subspecies (Boesman 2016; SACC 870).
  AS 11.1 Utcubamba Tapaculo Scytalopus intermedius
Blackish Tapaculo Scytalopus latrans
Accepted split from Blackish Tapaculo to which it is only distantly related. More closely related to Large-footed Tapaculo, S. macropus (Cadena et al. 2020; SACC 858).
  AS 11.1 Turkestan Short-toed Lark Alaudala heinei Lesser (Mediterranean) Short-toed Lark Alaudala rufescens Split based on phylogenetic divergence (Alström et al. 2020). Includes aharonii, pseudobaetica and persica.
  AS 11.1 Rufous Limestone Babbler Gypsophila calcicola Limestone Wren-Babbler (Variable Limestone Babbler) Gypsophila crispifrons Split based on molecular phylogeny and bioacoustic differences (Gwee et al. 2020).
  AS 11.1 Annam Limestone  Babbler Gypsophila annamensis Limestone Wren-Babbler (Variable Limestone Babbler) Gypsophila crispifrons Split based on molecular phylogeny and bioacoustic differences (Gwee et al. 2020).
PS 11.1 "Coal-black" Thrush Turdus anthracinus Chiguanco Thrush Turdus chiguanco Proposed split based on genetic and morphological differences (SACC 871).
  AS 11.1 Taiwan Bullfinch Pyrrhula owstoni
Grey-headed Bullfinch Pyrrhula erythaca Accepted split based on phylogenetic, morphological and vocal differences (Dong et al. 2020).
  AS 11.1 Bonin Greenfinch Chloris kittlitzi Grey-capped Greenfinch Chloris sinica Accepted split based on deep genetic divergence and morphological differences (Saitoh et al. 2015; Saitoh et al. 2020).
  AS 11.1 Yungas Sparrow Rhynchospiza dabbenei Stripe-capped (Chaco) Sparrow Rhynchospiza strigiceps Accepted split based on morphological, genetic, biogeographical and vocal evidence (Areta et al. 2019; SACC 842)
  AS 11.1 Moss-backed Sparrow Arremon dorbignii Saffron-billed Sparrow Arremon flavirostris Accepted split based on morphological, vocal and genetic differences (Buainain et al. 2016; SACC 874).
  PS 10.2 Donaldson-Smith's Turaco Menelikornis (Tauraco) donaldsoni White-cheeked Turaco Menelikornis (Tauraco) leucotis Proposed split based on genetic and phenotypic differences and parapatry/possible syntopy (Perktaş et al. 2020).
  PS 10.2 Eastern Black-billed Turaco Tauraco emini (Western) Black-billed Turaco Tauraco schuettii Proposed split based on polyphyly with phenotypic differences (Perktaş et al. 2020). English names under discussion.
  PS 10.2 Reichenow's Turaco Tauraco reichenowi Livingstone's Turaco Tauraco livingstonii Proposed split based on polyphyly with phenotypic differences (Perktaş et al. 2020).
  NEW 11.1
White-winged Tapaculo Scytalopus krabbei sp. nov.   New species: Krabbe, Schulenberg, Hosner, et al., 2020 (SACC 852).
  NEW 11.1 Jalca Tapaculo Scytalopus frankeae sp. nov.   New species: Krabbe, Schulenberg, Hosner, et al., 2020 (SACC 853).
  NEW 11.1 Ampay Tapaculo Scytalopus whitneyi sp. nov.   New species: Krabbe, Schulenberg, Hosner, et al., 2020 (SACC 854).
  AS 11.1
Loja Tapaculo Scytalopus androstictus
Paramo Tapaculo Scytalopus opacus Accepted split based on different calls and differences in mtDNA (SACC 855).
PS 10.2 Saharan Scrub Warbler Scotocerca saharae 'Streaked' Scrub Warbler Scotocerca inquieta Proposed split of allopatric Scrub Warbler populations, which differ genetically (11,5 cytb mt-DNA), by  song, and morphology (Shirihai & Svensson 2018; Handbook Western Palaearctic birds). S. saharae would include ssp theresae. Recognition pending formally published paper.
  NEW 10.2 Peleng Leaf Warbler Phylloscopus suaramerdu   Proposed new species: Rheindt et al. 2020. Tentatively add as subspecies of P. poliocephalus pending evaluation of revision of the entire species complex.
NEW 10.2 Taliabu Leaf Warbler Phylloscopus emilsalimi
  Proposed new species: Rheindt et al. 202). Tentatively add as subspecies of P. poliocephalus pending evaluation of revision of the entire species complex.
  AS 11.1
Sumatran Blue Robin Myiomela sumatrana
Sunda Robin (Javan Blue Robin) Myiomela diana
Accepted split (Ng et al. 2020).
  AS 10.2
Malaysian Crested Argus Rheinardia nigrescens (Vietnamese) Crested Argus Rheinardia ocellata Accepted split based on plumage, crest morphology and color, and vocalizations (Davison et al. 2020).
PL 10.2 Canary Islands Oystercatcher Haematopus meadewaldoi Eurasian Oystercatcher Haematopus ostralegus Treat as a distinctive subspecies (Senfeld et al. 2019).
  AS 10.2 White-faced Plover Charadrius dealbatus
Kentish Plover Charadrius alexandrinus Recent phylogenetic studies support treating C. dealbatus as a separate species (Sadanandan et al. 2019; Wang et al. 2019).
PS 10.2
Great White Heron
Ardea occidentalis
Great Blue Heron Ardea herodias Proposed split of white morph subspecies based on analyses of assortative mating (McGuire et al. 2019; NACC 2020-A-10). Declined by NACC.
PS 10.2 Haida Gwaii Saw-whet Owl Aegolius brooksi
Northern Saw-whet Owl Aegolius acadicus Proposed split based on molecular evidence of limited gene flow and phenotypic differences. NACC 2020-B-8. Declined by NACC.
AL 10.2 Tawny Piculet Picumnus fulvescens Ochraceous Piculet Picumnus limae Tentatively treat as a distinctive subspecies. (Lima et al. 2020, SACC 845)
  AS 10.2
Fine-banded Woodpecker Campethera taeniolaema Tullberg's Woodpecker Campethera tullbergi Campethera taeniolaema is split from allopatric Campethera tullbergi based on genetic and plumage differences. Fuchs et al. (2017).
  AS 10.2
Western Fire-eye Pyriglena maura White-backed (East Amazonian) Fire-eye Pyriglena leuconota Split Western Fire-eye from White-backed Fire-eye. (Isler & Maldonado-Coelho 2017; SACC 759).
  AS 10.2
Tapajos Fire-eye Pyriglena similis White-backed (East Amazonian) Fire-eye Pyriglena leuconota Split Tapajos Fire-eye from White-backed Fire-eye. (Isler & Maldonado-Coelho 2017; SACC 759).
PS 10.2 Black-headed Fruiteater Pipreola tallmanorum
Green-and-black Fruiteater Pipreola riefferii Potential split, but not subjected to molecular studies. (Sibley & Monroe 1990; Berv & Prum 2014).
PS 10.2 Venezuelan Fruiteater Pipreola melanolaema
Green-and-black Fruiteater Pipreola riefferii Potential split. Berv & Prum (2014).
  AS 10.2
Opalton Grasswren Amytornis rowleyi Striated Grasswren Amytornis striatus
Accepted split. (Christidis et al. 2013; Black et al. 2020 a, b). English name Opalton Grasswren follows Black et al. (2020 a, b). Assigned the English name Rusty Grasswren by others (Christidis et al. 2013; Dickinson & Christidis 2014).
  AS 10.2
Rufous Grasswren Amytornis whitei Striated Grasswren Amytornis striatus
Accepted split Polytypic. (Black et al. 2020 a, b). English name of this polytypic species follows Black et al. (2020 a, b). Includes whitei, oweni, and newly described parvus and aenigma
  NEW 10.2
Taliabu Myzomela Myzomela wahe   Accepted new species. Rheindt et al. (2020).
AL 10.2 Northwestern Crow Corvus caurinus American Crow Corvus brachyrhynchos Slager et al. 2020; NACC 2020-C-15
  AS 10.2
Palawan Drongo Dicrurus palawanensis Hair-crested Drongo Dicrurus hottentottus Accepted split. Includes ssp. cuyensis. Shakya et al. (2020).
  NEW 10.2
Peleng Fantail Rhipidura habibiei   Accepted as a new species in the Sulawesi Fantail complex as proposed in Rheindt et al. (2020).
  AS 10.2 Solomons Robin Petroica polymorpha
Pacific (Mayr's) Robin Petroica pusilla Solomon Robin is an accepted split from Pacific Robin. Includes polymorpha, septentrionalis, kulambangrae, and dennisi. The remaining subspecies taxa from Vanuatu, Fiji and Samoa, remain in P. pusilla with the revised English name of Mayr's Robin. Kearns et al. (2020).
  AS 10.2
Seram Bush Warbler
Locustella musculus Sulawesi (Chestnut-backed) Bush Warbler Locustella castanea Rheindt et al. (2020).
  NEW 10.2 Taliabu Bush Warbler Locustella portenta   Accepted new species. Rheindt et al. (2020).
  AS 10.2
Western Subalpine Warbler
Curruca iberiae (Eastern) Subalpine Warbler Curruca cantillans Western Subalpine Warbler is split from C. cantillans following Zuccon et al. (2020) and Svensson (2013a,b).
  AS 10.2 Yellow-eyed Bristlebill Bleda ugandae Yellow-lored Bristlebill Bleda notatus Accepted split based on phylogenetic and phenotypic differences Huntley & Voelker (2016).
  AS 10.2 Grey-cheeked Bulbul Alophoixus tephrogenys Brown-cheeked Bulbul vs Melodius Bulbul Alophoixus bres Accepted split based on phylogenetic and phenotypic differences Shakya et al. (2020). Note that English name, Grey-cheeked Bulbul, formerly assigned to A. bres, becomes associated with this, the split species. English name of A. bres to be determined.
  AS 10.2 Penan Bulbul Alophoixus ruficrissus Ochraceous Bulbul Alophoixus ochraceus Accepted split based on phylogenetic and phenotypic differences Shakya et al. (2020). English name to be determined.
  AS 10.2
Pale-faced Bulbul Pycnonotus leucops Flavescent Bulbul Pycnonotus flavescens Accepted split based on phylogenetic and phenotypic differences (Dejtaradol et al. 2016; Eaton et al. 2016).
  PS 10.1 Schuett's Spurfowl Pternistis schuetti Scaly Spurfowl P. squamatus Proposed (10.1) split of Schuett's Spurfowl based on  revision of genus Pternistis (Mandiwana-Neudani et al. 2019). STET SSP pending continuing research. Includes ssp maranensis
  PS 10.1 Cranch's Spurfowl Pternistis cranchi Red-necked Spurfowl P. afer Proposed (10.1) split of Cranch's Spurfowl based on revision of genus Pternistis (Mandiwana-Neudani et al. 2019). Takes into account complex hybridization. STET SSP pending continuing research.
  PL 10.1 Black-fronted Francolin Pternistis atrifrons Chestnut-naped Francolin P. castaneicollis  Black-fronted Francolin was split from Chestnut-naped Francolin P. castaneicollis (Töpfer et al. 2014). Treated as subspecies by Mandiwana-Newdani et al. (2019) absent DNA metric. STET SP pending continuing research
  AL 10.1 Hoogerwerf's Pheasant Lophura hoogerwerfi Salvadori's Pheasant L. inornata Overdue lump of poorly known species originally based on minor differences between females; males indistinguishable (Sözer et al. 2006, HBW, Eaton et al. 2016). Treat as SSP.
  AS 10.1 Hudsonian Whimbrel Numenius hudsonicus (Eurasian) Whimbrel N. phaeopus Genomic phylogeography separates Nearctic whimbrels as a deep monophyletic clade with distinct plumage (Sangster et al. 2011, Tan et al. 2019). Similar vocals need study.
  NEW 10.1 Whistling Long-tailed Cuckoo Cercococcyx lemaireae Dusky Long-tailed Cuckoo C. mechowi Morphologically 'identical' western populations proposed (10.1) to be recognized as a new species Cercococcyx lemaireae based on  song and call differences from C. mechowi (first noted by Dowsett-Lemaire 1997) (Boesman & Collar 2019). Apparent narrow hybrid zone in Bakossi Mountains, Cameroon. Await genetics and playback responses.
  AS 10.1 Maghreb Owl Strix mauritanica Tawny Owl S. aluco Accepted split (10.1) based on morphology, genetics and vocals (Brito 2005, Doña et al. 2015, Robb 2015)
   AS 10.1 Sunda Owlet Glaucidium sylvaticum Collared Owlet G. brodiei Accepted split (10.1) of Sunda Owlet (G. sylvaticum) from Collared Owlet (G. brodiei; Gwee et al. 2019) largely on the basis of the primary song type, which is shared by Sumatran sylvaticum and Bornean borneense but distinctly different from that shared by the widespread continental nominate and Taiwanese pardalotum.
  AS 10.1 Butterfly Coquette Lophornis verreauxii Festive Coquette L. chalybeus Accepted split (10.1) of widespread Amazonian verreauxii from the broadly allopatric E Brazilian chalybeus largely on the basis of different morphology, especially crest length, and vocal differences (del Hoyo and Collar 2014, Donegan et al. 2015, del Hoyo et al. 2019, SACC 833) ENG: Verreaux's Coquette?
  NEW 10.1 Western Yellow-spotted Barbet Buccanodon dowsetti (Eastern) Yellow-spotted Barbet B. duchaillui Morphologically 'identical' western populations proposed (10.1) to be recognized as Buccanodon dowsetti sp. nov. based on very different vocals (first noted by Borrow & Demey 2001)(Boesman & Collar 2019). Replaces B. duchaillui west of Dahomey Gap. Await genetics and playback responses.
  NEW 10.1 Alor Myzomela Myzomela prawiradilagae Crimson-hooded Myzomela M. kuehni New species closely related to M. kuehni, first reported by Trainor et al. (2012a,b) and formally described to science on the basis of a single specimen (Irham et al. 2019). Head color, song and call differ; genetic divergence weak .
  AS 10.1 Cryptic Honeyeater

Microptilotis imitatrix

Graceful Honeyeater M. gracilis Accepted (10.1) split of allopatric imitatrix based on vocal repertoire differences and playback responses supplemented by genetic and morphology differences incl. eye color (Nielsen 2018). ENG
  AS 10.1 Swinhoe's Prinia Prinia striata Himalayan [Striated] Prinia P. crinigera Accepted split (10.1) from Prinia crinigera based on non-sister status, vocal and morphological differences, and previously unrecognized sympatry in Yunnan (Alström et al. 2019). ENG
  AS 10.1 Burmese Prinia Prinia cooki Deignan's [Brown] Prinia P. polychroa Accepted split (10.1) based on genetic, song, and morphological differences (Alström et al. 2019).
  AS 10.1 Annam Prinia Prinia rocki Deignan's [Brown] Prinia P. polychroa Accepted split (10.1) based on genetic, song, and morphological differences (Alström et al. 2019).
  NEW 10.1 Spectacled Flowerpecker Dicaeum dayakorum   Distinctive new species informally documented by sightings and photographs (Edwards et al. 2009, Sykes and Loseby 2015, Boyd et al. 2016) and now described scientifically from the sole known specimen (Saucier et al. 2019). Basal Dicaeum.
   PS 10.1 Flores Flowerpecker Dicaeum rhodopygiale Blood-breasted Flowerpecker D. sanguinolentum  Proposed split of montane Flores endemic taxon from D. sanguinolentum, based on minor plumage and apparent vocal differences (Rheindt and Eaton 2019).
   PS 10.1 Sumba Flowerpecker Dicaeum wilhelminae Blood-breasted Flowerpecker D. sanguinolentum  Proposed split of endemic taxon of Sumba (where found at all altitudes) from D. sanguinolentum, based on moderately distinct plumage and striking vocal differences (Rheindt and Eaton 2019).
   PS 10.1 Timor Flowerpecker Dicaeum  hanieli Blood-breasted Flowerpecker D. sanguinolentum  Proposed split of montane Timor endemic taxon from D. sanguinolentum, based on moderately distinct plumage and apparent vocal differences (Rheindt and Eaton 2019).
  AS 9.2 West African Crested Tern Thalasseus albididorsalis Royal Tern T. maximus Genetic analysis supports sister relation of T. m. albididorsalis to T. bengalensis (Collinson et al. 2017). Elevation to species status would remove paraphyly.  NACC 2020-A-9. ENG.
  AS 10.1 Numfor Leaf Warbler Phylloscopus maforensis Island Leaf Warbler P. poliocephalus  Morphologically distinct; genetics desired (Beehler & Pratt 2016, HBW).  Alström et al. 2018 sampled subspecies pallescens from Kolombangara I (w Solomons).  Restore poliocephalus.
  AS 10.1 Biak Leaf Warbler Phylloscopus misoriensis Island Leaf Warbler P. poliocephalus Morphologically distinct; genetics desired (Beehler & Pratt 2016, HBW); not sampled by Alström et al. 2018.
  AS 10.1 Eastern Black-eared Wheatear Oenanthe melanoleuca (Western) Black-eared Wheatear O.  hispanica   Accepted split of Eastern Black-eared Wheatear (O. melanoleuca from Western addresses genetic paraphyly in this Oenanthe species complex (Aliabadian et al. 2012, Schweizer et al. 2019, Jirle for Swedish Taxonomic Committee).  Black-eared Wheatear O. hispanica currently includes two subspecies (hispanica, melanoleuca). But melanoleuca is sister to M. cypriaca and hybridizes extensively with O. pleschanka in northern Iran. Hispanica is sister to that clade.
  AS 9.2 Stejneger's Scoter Melanitta stejnegeri White-winged Scoter M. deglandi Accepted split of Stejneger's Scoter M. stejnegeri from White-winged Scoter M. deglandi based on lack of hybridization and on morphological characters that include the black rather than brown flanks (deglandi also has brown tinged scapulars), a more obvious hook "nose" on stejnegeri, a longer white post-ocular mark on stejnegeri, and different bill coloration (HBW, NACC 2019-A-16 and references therein).
  PS 9.2 Pacific Fulmar Fulmarus rodgersii Atlantic [Northern] F. glacialis Proposed split of Pacific Fulmar is based primarily on deep mtDNA divergence and minor morphological differences (Kerr and Dove 2013, NACC 2019-A-1 decline)
  PS 9.2 Harlan's Hawk Buteo harlani Red-tailed Hawk B. jamaicensis Proposed species recognition of controversial Harlan's Hawk based many diagnosable differences (Clark 2018, NACC 2019-A-2 decline with two views of these highly variable Canadian buteos
  AS 9.2 Australian Tern Gelochelidon macrotarsa Gull-billed Tern G. nilotica Accepted split of G. macrotarsa is based on  morphological differences (Rogers et al. 2005, HBW, Schodde pers. comm). ENG Australian Gull-billed Tern
  AS 9.2 Malagasy Palm  Swift Cypsiurus gracilis African Palm Swift C. parvus Accepted split of Malagasy Palm Swift from African Palm Swift (C. parvus) based on vocalizations and plumage coloration (Mills et al. 2019). Includes griveaudi on Comoro Is
  AL 9.2 Schouteden's Swift Schoutedenapus schoutedeni Scarce Swift S. myioptilus Probably are darker juvenile or sub-adult Scarce Swifts subspecies chapini (Fishpool 2019)
  AS 9.2 Green-headed Hillstar Oreotrochilus stolzmanni Andean Hillstar O. estella Green-headed Hillstar is an accepted split from O. estella based on plumage differences and mtDNA relationship to O. melanogaster.  SACC 808
  NEW 9.2 Blue-throated Hillstar Oreotrochilus cyanolaemus   Newly described species based on striking plumage differences from Andean Hillstar O. (estella) stolzmanni) (Somoza-Molina et al 2018).  Genomic analysis of estella species complex desired (see HBW, SACC 808)
  AS 9.2 Indochinese Roller Coracias affinis Indian Roller C. benghalensis Morphologically distinct Indochinese Roller may be more closely related to Purple-winged Roller (C. temmincki) than to Indian Roller separated by a narrow hybrid zone (Johansson et al. 2018, HBW)
AL 9.2 Barbary Falcon Falco pelegrinoides Peregrine Falcon Falco peregrinus Barbary Falcon is genetically similar to other subspecies of Peregrine Falcon and is deeply embedded in the Peregrine Falcon complex (White et al. 2013, H&M4, Fuchs et al. 2015, Wink 2015, HBW Alive).
  AS 9.2 Small-headed Elaenia Elaenia sordida Highland Elaenia E. obscura Elaenia sordida is split from Highland Elaenia based on mtDNA genetics and vocals (Rheindt et al. 2008, Minns 2017, HBW, SACC 806). English name follows SACC.
  AS 9.2 Ceara Woodcreeper Xiphorhynchus atlanticus Lesser Woodcreeper X. fuscus Accepted split of monotypic Atlantic Woodcreeper is based on genetic, morphological and vocal distinctions (Cabanne et al. 2014, Garcia et al. 2017, SACC 659, 809, HBW). ENG: Nordeste, Ceara?
AL 9.2 Negro Stipple-throated Antwren Epinecrophylla pyrrhonota Napo Stipple-throated Antwren E. haematonota Negro Stipple-throated Antwren was split from [Napo] Stipple-throated Antwren (Whitney et al. 2013e, SACC 589A), but vocalizations are identical and morphological differences slight (Isler and Whitney 2018, SACC 817). ENG  Epinecrophylla spp become Stipplethroats
AL 9.2 Yasuni Stipple-throated Antwren Epinecrophylla fjeldsaai Napo Stipple-throated Antwren E. haematonota Yasuni Stipple-throated Antwren was split from [Napo] Stipple-throated Antwren (Whitney et al. 2013e, SACC 589A), but vocalizations are identical and morphological differences slight (Isler and Whitney 2018, SACC 817)
  AS 9.2 Biak Whistler Pachycephala (Colluricincla) melanorhyncha Arafura [Little] Shrikethrush C. megarhyncha The endemic Biak Little 'Shrikethrush' C. m. melanorhyncha is a whistler, sister to Pachycephala phaionota (Marki et al. 2018). Move from Colluricincla to species of Pachycephala. Rename.
  AS 9.2 Sepik-Ramu Shrikethrush Colluricincla tappenbecki Arafura [Little] Shrikethrush C. megarhyncha The following accepted splits (9.2) of the Little Shrikethrush species complex are based on genetics and morphology (Marki et al. 2018, Schodde pers. comm). Proposed split (9.2) of Sepik-Ramu Shrikethrush C. tappenbecki includes ssp madaraszi and maeandrina
  AS 9.2 Rufous Shrikethrush Colluricincla rufogaster Arafura [Little] Shrikethrush C. megarhyncha Accepted split of Rufous Shrikethrush C. rufogaster includes ssp griseata and goodsoni. Ssp aelptes is included in goodsoni; gouldii and synaptica are included in nominate rufogaster 
  AS 9.2 Tagula Shrikethrush Colluricincla discolor Arafura [Little] Shrikethrush C. megarhyncha Monotypic
  AS 9.2 Mamberamo Shrikethrush Colluricincla obscura Arafura [Little] Shrikethrush C. megarhyncha Monotypic; includes ssp hybridus
  AS 9.2 Waigeo Shrikethrush Colluricincla affinis Arafura [Little] Shrikethrush C. megarhyncha Monotypic
  AS 9.2 Variable Shrikethrush Colluricincla fortis Arafura [Little] Shrikethrush C. megarhyncha Includes ssp trobriandi (??) and despecta (includes neos and superflua)
  NEW 9.2 Cream-eyed Bulbul Pycnonotus pseudosimplex Cream-vented Bulbul P. simplex Cream-eyed Bulbul P. pseudosimplex is a newly described species previously known as an eye-color morph of Cream-vented Bulbul P. simplex perplexus on Borneo.  Cream-eyed Bulbul is a genetically distinct sister to Ashy-fronted Bulbul P. cinereifrons of Palawan (Shakya et al. 2019).
  AS 9.2 Morotai White-eye Zosterops dehaani Cream-throated White-eye Z. atriceps Proposed split of Morotai White-eye is based on distinct plumage, exceptional dawn song  and submontane/montane ecology (Rheindt and Eaton 2018)
  AS 9.2 Wakatobi White-eye Zosterops flavissimus Lemon-bellied White-eye Z. chloris Accepted split of Wakatobi White-eye is based on morphology, genetics, and vocalizations (O'Connell et al. 2019)
PS 9.2 Saint Lucia Thrasher Ramphocinclus sanctaeluciae White-breasted Thrasher R. brachyurus Proposed split of Saint Lucia Thrasher is based on molecular phylogenetics (DaCosta et al. 2019). Await research in progress
  AS 9.2 Campina Thrush Turdus arthuri Black-billed Thrush T. ignobilis Campina Thrush is an accepted split from Black-billed Thrush T. ignobilis  justified by sympatry without intergradation at two Colombian localities (Cerqueira et al. 2016, Avendaño et al. 2017, Stiles and Avendaño 2019, SACC 814).
  AS 9.2 Pantepui Thrush Turdus murinus Black-billed Thrush T. ignobilis Pantepui Thrush is an accepted split from Black-billed Thrush T. ignobilis based on genetic divergence (Cerqueira et al. 2016, Avendaño et al. 2017, Stiles and Avendaño 2019, SACC 814).
PS 9.2 Philippine Shortwing Brachypteryx poliogyna
White-browed Shortwing B. montana
Philippine  and Indonesian members of the White-browed Shortwing species complex are proposed splits from the Oriental mainland taxa and from each other (HBW, Eaton et al. 2016, Alström et al. 2018). Await full analysis of island taxa.
PS 9.2 Sumatran Shortwing Brachypteryx saturata
White-browed Shortwing B. montana
Philippine  and Indonesian members of the White-browed Shortwing species complex are proposed splits from the Oriental mainland taxa and from each other (HBW, Eaton et al. 2016, Alström et al. 2018). Monotypic. Await full analysis of island taxa.
PS 9.2 Bornean Shortwing Brachypteryx erythrogyna
White-browed Shortwing B. montana
Philippine  and Indonesian members of the White-browed Shortwing species complex are proposed splits from the Oriental mainland taxa and from each other (HBW, Eaton et al. 2016, Alström et al. 2018). Monotypic. Await full analysis of island taxa.
PS 9.2 Flores Shortwing Brachypteryx floris
White-browed Shortwing B. montana
Philippine  and Indonesian members of the White-browed Shortwing species complex are proposed splits from the Oriental mainland taxa and from each other (HBW, Eaton et al. 2016, Alström et al. 2018). Monotypic. Await full analysis of island taxa.
  AS 9.2 Hill Blue Flycatcher Cyornis whitei Javan [Hill] Blue Flycatcher C. banyumas C. whitei is an accepted split from C. banyumas based on genetics and vocalizations (Zhang et al. 2016, Gwee et al. 2019. Note transfer of established English name Hill Blue Flycatcher to C. whitei.
PS 9.2 Dayak Blue Flycatcher Cyornis montanus Javan [Hill] Blue Flycatcher C. banyumas A Borneo endemic, the Dayak Blue Flycatcher is a proposed split from Javan [Hill] Blue Flycatcher based on vocalizations (Gwee et al. 2019). STET, pending current studies (Sheldon pers. comm.)
  AS 9.2 Indochinese Blue Flycatcher Cyornis sumatrensis Tickell's Blue Flycatcher C. tickelliae Widespread Indochinese Blue Flycatcher is a proposed split from Tickell's Blue Flycatcher based on morphology and vocalizations  (Rasmussen & Anderton 2005, Gwee et al. 2019, HBW)
PL 9.2 Tanahjampea Blue Flycatcher Cyornis djampeanus Sulawesi Blue Flycatcher C. omissus Taxonomic status and relationships of Tanahjampea Blue Flycatcher are uncertain (Gwee et al. 2019). Stet species for now
PS 9.2 Kalao Blue Flycatcher Cyornis kalaoensis Sulawesi Blue Flycatcher C. omissus Kalao Blue Flycatcher is a proposed split based on vocalizations (Gwee et al. 2019).
PS 9.2 Crocker Jungle Flycatcher Cyornis ruficrissa Rufous-tailed Jungle Flycatcher C. ruficauda Proposed split of Borneo subspecies of Rufous-tailed Jungle Flycatcher as Crocker Jungle Flycatcher C. ruficrissa based on vocalizations, but status uncertain (Gwee et al. 2019).
PS 9.2 Sulu Jungle Flycatcher Cyornis ocularis Rufous-tailed Jungle Flycatcher C. ruficauda Proposed split of Rufous-tailed Jungle Flycatchers on Sulu Arch as Sulu Jungle Flycatcher (C. ocularis) based on vocalizations (Gwee et al. 2019)
  AS 9.2 Yucatan Gnatcatcher Polioptila albiventris White-lored Gnatcatcher P. albiloris Accepted split of Yucatan Gnatcatcher P. albiventris from White-lored Gnatcatcher is based on genetic and vocal distinctions (Smith et al 2018; NACC 2019-C-7, E-6a).
  AS 9.2 Nicholson's Pipit Anthus nicholsoni Long-billed Pipit A. similis Accepted split of South African pops of Long-billed Pipit is based on their allopatric distributions (southern and East African populations separated by ca. 1 800 km), their non-migratory nature and their high cyt b sequence divergence values (Pietersen et al. 2018)
AL 9.1

Chaco Nothura

Nothura chacoensis Spotted Nothura N. maculosa Treat Chaco Nothura as a subspecies of Spotted Nothura (Hayes et al. 2018, SACC 782)
SSP 9.1

Whenua Hou Diving Petrel

Pelecanoides whenuahouensis South Georgia Diving Petrel P. georgicus Proposed split of (endangered) Whenua Hou Diving Petrel based primarily on slight phenotypic differences (Fischer et al. 2018). Treat provisionally as ssp of georgicus pending vocal and genetic diagnoses
  AS 9.1 Rote Boobook Ninox rotiensis Australian [Southern] Boobook N. boobook Accepted split from Southern Boobook N. boobook based on genetics and vocals (Gwee et al. 2017)
  AS 9.1 Timor Boobook Ninox fusca Australian [Southern] Boobook N. boobook
Accepted split from Southern Boobook N. boobook based on genetics and vocals (Gwee et al. 2017)
  AS 9.1 Alor Boobook Ninox plesseni Australian [Southern] Boobook N. boobook
Accepted split from Southern Boobook N. boobook based on genetics and vocals (Gwee et al. 2017)
  AS 9.1 Buru Boobook Ninox hantu Seram [Hantu] Boobook N. squamipila Accepted split of Buru Boobook from unrelated Seram Boobook based on genetics and vocals (Gwee et al. 2017). ENG Rename N. squamipila 
  AS 9.1 Green-backed Hillstar Urochroa leucura Rufous-gaped [White-tailed] Hillstar U. bougueri Green-backed Hillstar is a proposed (9.1) split from White-tailed Hillstar, renamed Rufous-gaped Hillstar (HBW Alive, Donegan et al. 2015; SACC 775, 800).
  NEW 9.1 Dry-forest Sabrewing Campylopterus calcirupicola Grey-breasted Sabrewing C. largipennis Dry-forest Sabrewing is a proposed (9.1) new member of the Campylopterus largipennis species complex (Lopes et al. 2017). SACC 755, 756 and HBW accept with species status. ENG Limestone Sabrewing?
  AS 9.1 Chiriqui Foliage-gleaner Automolus exsertus Buff-throated Foliage-gleaner A. ochrolaemus Chiriqui Foliage-gleaner is split from  widespread Buff-throated Foliage-gleaner based on vocals (incl. playback expts), and mtDNA divergence (Freeman and Montgomery 2017, NACC 2018-A-2)
  AS 9.1 Rufous-breasted Antpitta Grallaricula leymebambae Rusty-breasted Antpitta Gferrugineipectus  Van Doren et al. 2018, SACC 784 accepted
  AS 9.1 Tapajos Antpitta Myrmothera subcanescens Thrush-like Antpitta M. campanisona Carneiro et al. 2018;  SACC 785 accepted .
  AS 9.1 Spotted Scrubwren Sericornis maculatus White-browed Scrubwren S. frontalis Accepted split follows comprehensive revision of scrubwrens and allies (Norman et al. 2018)
  AS 9.1 Albertine Sooty Boubou Laniarius holomelas Mountain Sooty Boubou L. poensis Accepted split supported by eye color, vocals and preliminary DNA evidence (Voelker et al. 2010, H&M4, HBW).
  NEW 9.1 Western Square-tailed Drongo Dicrurus occidentalis [Common] Square-tailed Drongo D. ludwigii Western Square-tailed Drongo is a newly described species embedded in D. ludwigii but sister to newly split Sharpe's Drongo (Fuchs et al. 2018).  ENG
  AS 9.1 Sharpe's Drongo Dicrurus sharpei [Common] Square-tailed Drongo D. ludwigii Sharpe's Drongo (including elgonensis, synonym) is a proposed split from Square-tailed Drongo D. ludwigii  based on plumage color and genetic lineage (Fuchs et al. 2018).
  AS 9.1 Fanti Drongo Dicrurus atactus Velvet-mantled Drongo D. modestus Fanti Drongo is a proposed split from the Velvet-mantled Drongo coracinus/modestus complex (Fuchs et al. 2017). ENG
  AS 9.1 Glossy-backed Drongo Dicrurus divaricatus Fork-tailed Drongo D. adsimilis Glossy-backed Drongo D. divaricatus is a proposed split from the Fork-tailed Drongo species complex (Fuchs et al. 2017).  D. adsimilis would retain ssp fugax. ENG
PS 9.1 Clancey's Drongo Dicrurus apivorus Fork-tailed Drongo D. adsimilis Clancey's Drongo D.a. apivorus is a proposed split from the Fork-tailed Drongo species complex (Fuchs et al. 2017).
AL 9.1 Erlanger's Lark Calandrella erlangeri Blanford's Lark C. blanfordi Treat Erlanger's Lark as a subspecies of Blanford's Lark (Stervander et al 2016)
  AS 9.1 Rufous-capped Lark Calandrella eremica Blanford's Lark C. blanfordi Accepted split of Rufous-capped Lark from Blanford's Lark. Includes daaroodensis (Stervander et al. 2016)
AL 9.1 Steppe Grey Shrike Lanius pallidirostris Great Grey Shrike L. excubitor Lanius pallidirostris is split from Lanius excubitor (King 1997, Hernández et al. 2004, Panov 2011) but not by HBW, Clements, H&M4.  Restore to status as ssp of excubitor pending full resolution of this complex
  AS 9.1 Chivi Vireo Vireo chivi Red-eyed Vireo Vireo olivaceus Chivi Vireo is split from Red-eyed Vireo based on lack of introgression and not monophyletic (Battey and Klicka 2017, NACC 2018-B-4)
  NEW 9.1 Rote Leaf Warbler Phylloscopus rotiensis   Newly described, vocally and genetically distinct species with long bill; sister to Timor Leaf Warbler P. presbytes (Ng et al. 2018)
  AS 9.1 Socotra White-eye Zosterops socotranus Abyssinian White-eye Z. abyssinicus An old outlying lineage that should be split from unrelated mainland Z. abyssinicus (Cox et al . 2014). SEQ
  AS 9.1 Mbulu White-eye Zosterops mbuluensis
Montane White-eye Z. poliogastrus Accepted split from artificial Montane White-eye subspecies complex Z. poliogastrus (Cox 2013, Cox et al. 2014, Pearson & Turner 2017). Is sister to Z. abyssinicus flavilateralus (Cox et al 2014). Monotypic.
  AS 9.1 Pale White-eye Zosterops flavilateralis
Abyssinian White-eye Z. abyssinicus Accepted split from Abyssinian White-eye (Cox 2013, Cox et al. 2014, Pearson & Turner 2017).  Includes jubaensis. ENG Pale Scrub White-eye?
  AS 9.1 Aldabra White-eye Zosterops aldabrensis
Malagasy White-eye Z. maderaspatanus Accepted split from Malagasy White-eye. Aldabra White-eye is sister to Seychelles White-eye and, in turn, Kirk's White-eye and Malagasy White-eye (Cox et al. 2014)
  AS 9.1 South Pare White-eye Zosterops winifredae
Montane White-eye  Z. poliogastrus Accepted split from artificial Montane White-eye subspecies complex Z. poliogastrus (Cox 2013, Cox et al. 2014, Pearson & Turner 2017). Sister to Z. pallidus?
  AS 9.1 Southern Yellow White-eye  Zosterops anderssoni African Yellow White-eye  Z. senegalensis Accepted split from African Yellow White-eye Z. senegalensis (Cox 2013, Cox et al. 2014, Pearson & Turner 2017); includes stierlingi provisionally
  AS 9.1 Broad-ringed White-eye Zosterops eurycricotus Heuglin's [Montane] White-eye  Z. poliogastrus Accepted split from artificial Montane White-eye subspecies complex Z. poliogastrus (Cox 2013, Cox et al. 2014, Pearson & Turner 2017). Monotypic
  AS 9.1 Green White-eye Zosterops stuhlmanni African Yellow White-eye Z. senegalensis Accepted split from African Yellow White-eye Z. senegalensis (Cox 2013, Cox et al. 2014, Pearson & Turner 2017); includes ssp toroensis, scotti
AL 9.1 Mountain White-eye Zosterops montanus Warbling [Japanese] White-eye Z. japonicus Montane White-eye is a proposed lump with revised Warbling [Japanese] White-eye complex (Lim et al. 2018). ENG
  AS 9.1 Swinhoe's White-eye Zosterops simplex Japanese White-eye Z. japonicus Swinhoe's White-eye is a proposed split from the revised [Warbling] Japanese White-eye complex. It would include ssp erwini and salvadorii (Lim et al. 2018)
AL 9.1 Enggano White-eye Zosterops salvadorii Swinhoe's White-eye Z. simplex Enggano White-eye (Z. salvadorii) is a weakly defined species best treated as a subspecies of Zosterops simplex (Lim et al. 2018).
  AS 9.1 Hume's White-eye Zosterops auriventer Indian [Oriental] White-eye Z. palpebrosus Z. auriventer is redefined as an upland species related to Z. everetti not Z. palpebrosus (Wells 2017).  Includes ssp tahanensis and wetmoreiThe name auriventer is the senior name available for mainland Asian populations named Hume’s White-eye.
  AS 9.1 Sangkar White-eye  Zosterops melanurus Indian [Oriental] White-eye  Z. palpebrosus Sangkar White-eye is a proposed split from Oriental White-eye (Lim et al. 2018). Includes ssp buxtoni
  AS 9.1 Chattering Gnatwren Ramphocaenus sticturus Trilling [Long-billed] Gnatwren R. melanurus Accepted split from Long-billed Gnatwren based on phylogenetics, voice, plumage, and sympatry; includes ssp obscurus (Smith et al. 2018, SACC 790A). ENG Rename R. melanurus 'Trilling' Gnatwren
PS 9.1 Northern Gnatwren Ramphocaenus rufiventris
[Trilling] Long-billed Gnatwren R. melanurus Split trans-Andean R. rufiventris  (including ardeleo and sanctaemarthae) from cis-Andean R. melanurus (Smith et al. 2018, SACC 790B). Colombian forms not fully resolved. STET PS
PL 9.1 Violet-hooded Starling Aplonis circumscripta Metallic Starling A. metallica Violet-hooded Starling is a relict split in Gill & Wright 2006, recommended by Ben King. Review underway.
PS 9.1 Ethiopian Thrush Turdus simensis Groundscraper Thrush T. litsitsirupa Ethiopian Thrush is a proposed split based on deep genetic divergence, plumage and vocal differences (Nylander et al. 2008, HBW). Stet ssp pending full analysis
  AS 9.1 Himalayan Shortwing Brachypteryx cruralis White-browed Shortwing B. montana The three Asian forms of White-browed Shortwing B. montana are split from Philippine and Indonesian taxa and from each other (HBW, Eaton et al. 2016, Alström et al. 2018)
  AS 9.1 Chinese Shortwing Brachypteryx sinensis
White-browed Shortwing B. montana
The three Asian forms of White-browed Shortwing B. montana are split from Philippine and Indonesian taxa and from each other (HBW, Eaton et al. 2016, Alström et al. 2018). Monotypic
  AS 9.1 Taiwan Shortwing Brachypteryx goodfellowi
White-browed Shortwing B. montana
The three Asian forms of White-browed Shortwing B. montana are split from Philippine  and Indonesian taxa and from each other (HBW, Eaton et al. 2016, Alström et al. 2018). Monotypic
AL 9.1 Cherrie's Tanager Ramphocelus costaricensis Scarlet-rumped [Passerini's] Tanager R. passerinii Proposal to lump Cherrie's Tanager as a subspecies of Passerini's Tanager R. passerinii is based on nondiscrimination in playback expts (Freeman and Montgomery 2017, NACC 2018-A-4). Change English name of R. passerinii to Scarlet-rumped Tanager.
PS 8.1 Ecuadorian Hermit Phaethornis baroni Long-billed Hermit P. longirostris Baron's Hermit Phaethornis baroni is treated as conspecific with Long-billed Hermit P. longirostris following SACC (136). Restoration of species status deserves reconsideration given morphological distinctions, vocal differences (see xeno-canto), allopatric range, and advances in the taxonomy of this species complex (Ridgely and Greenfield 2001, HBW). Await phylogeny?
PS 8.2 Yellow-faced Grosbeak Caryothraustes brasiliensis Yellow-green Grosbeak C. canadensis Yellow-faced Grosbeak of the Atlantic forests of Brasil is a proposed split based on morphology and vocalizations (Tonetti et al. 2017). SACC proposal?
  SSP 8.2 'Trindade' Frigatebird Fregata trinitatis Lesser Frigatebird F. ariel Proposal to split endangered Lesser Frigatebirds of the Atlantic Ocean based on bone and plumage differences (Olson 2017, SACC 768). Stet SSP
  NEW 8.2 Santa Marta Screech Owl Megascops gilesi Krabbe 2017; long awaited!  SACC 769
AL 8.2 Napo Screech Owl Megascops napensis Roraiman Screech Owl M. roraimae Lump Napo Screech Owl and Roraiman Screech Owl as M. roraimae, which has precedence (Krabbe 2017). ENG Foothill Screech Owl. SACC 771
AL 8.2 Colombian Screech Owl Megascops colombianus Rufescent Screech Owl M. ingens Species status of Colombian Screech Owl Megascops colombianus re M. ingens has been uncertain (Ridgely & Greenfield 2001, H&M, BLI, and SACC).  Genetics and vocals support this lump (Krabbe 2017). SACC 770
AL 8.2 Baron's Spinetail Cranioleuca baroni Line-cheeked Spinetail C. antisiensis Lump Baron's Spinetail with Line-cheeked Spinetail due to clinal intergradation (Seeholzer & Brumfield 2017, SACC 762 accepted)
  AS 8.2 Rufescent Antshrike Thamnistes rufescens Russet Antshrike T. anabatinus Accepted split of Rufescent Antshrike from Russet Antshrike based on vocals and plumage (Isler & Whitney 2017,  SACC 758).
  NEW 8.2 Painted Manakin Machaeropterus eckelberryi Striolated [Western Striped] Manakin M. striolatus Newly desribed species  based on vocalizations only (Lane et al. 2017,  SACC 761). Note that previous IOC list split polytypic M. striolatus from  M. regulus, which this study advocates.
  NEW 8.2 Rote Myzomela Myzomela irianawidodoae Sumba Myzomela M. dammermani Newly described on the basis of morphology and vocalizations from the island of Rote in the Lesser Sundas (Eaton et al 2016, Prawiradilaga et al. 2017)
  AS 8.2 White-bellied Whipbird Psophodes leucogaster Black-throated [Western] Whipbird M. nigrogularis White-bellied [Mallee] Whipbird Psophodes leucogaster (including lashmari) is split from Black-throated [Western] Whipbird P. nigrogularis including oberon (Burbidge et al. 2017).  For historical background see Schodde & Mason 1999, Christidis & Boles 2008, Toon et al. 2013. English name changes follow split
  AS 8.2 Taliabu Fantail Rhipidura sulaensis Sulawesi [Rusty-bellied] Fantail R. teysmanni Taliabu Fantail is a proposed split from Rusty-bellied Fantail based on genomic analysis and vocalizations (Ng et al 2017).  Two sweeps of mtDNA are invoked.  ENG
  AS 8.2 Maghreb Magpie Pica mauritanica Eurasian Magpie P. pica Lee et al. 2003, Song et al. 2018, HBW. Monotypic
  AS 8.2 Asir Magpie Pica asirensis Eurasian Magpie P. pica Lee et al. 2003, Song et al. 2018, HBW. Monotypic
  AS 8.2 Black-rumped Magpie Pica bottanensis Eurasian Magpie P. pica Lee et al. 2003, Song et al. 2018, HBW. Monotypic. ENG Tibetan vs Black-rumped
  AS 8.2 Oriental Magpie Pica serica Eurasian Magpie P. pica Lee et al. 2003, Song et al. 2018, HBW. Monotypic (includes anderssoni).
  AS 8.2 Lesser Lophorina Lophorina minor Greater [Superb Bird-of-Paradise] Lophorina L. superba Irestedt et al. 2017; monotypic. ENG provisional
  AS 8.2 Crescent-caped Lophorina Lophorina niedda Greater [Superb Bird-of-Paradise] Lophorina L. superba Irestedt et al. 2017; includes inopinata ssp nova. ENG Crescent-caped Lophorina  provisional
PS 8.2 Viscaino Thrasher Toxostoma arenicola LeConte's Thrasher T. lecontei Viscaino Thrasher is a proposed split from LeConte's Thrasher based on parapatry, genetic divergence and effective reproductive isolation (Vázquez-Miranda et al. 2017, NACC 2018-C-14 decline). Stet SSP status
  AS 8.2 Banggai Jungle Flycatcher Cyornis pelingensis Sula [Henna-tailed] Jungle Flycatcher C. colonus Accepted split of Banggai Jungle Flycatcher C. pelingensis from sister ssp on Sula Island based on vocal differences, genetic divergence, and restricted gene flow (Eaton et al. 2016, Garg et al. 2018).  Subspecies subsolanus invalid? (HBW) .
PS 8.2 Grey-crowned Ground Sparrow Melozone occipitalis White-eared Ground Sparrow M. leucotis Grey-crowned Ground Sparrow is a proposed split from from White-eared Ground Sparrow M. leucotis based on morphometrics, vocalizations, and genetics (Sandoval 2017ab, NACC 2018-C-7 decline). STET SSP
  AS 8.2 Morelet's Seedeater Sporophila morelleti Cinnamon-rumped [White-collared] Seedeater S. torqueola Sporophila morelleti (including ssp sharpei, mutanda) is an accepted split from S. torqueola based on morphology, deep genetic divergence and polyphyly (Mason et al. 2018, HBW, NACC 2018-C-8). ENG: Rename S. torqueola Cinnamon-rumped Seedeater.
  AS 8.1 Sclater's Crowned Pigeon  Goura sclaterii Scheepmaker's [Southern] Crowned Pigeon G. scheepmakeri HBW, Gregory 2017, Bruxaux et al. 2017. G. sclaterii is sister to G. cristata; G. scheepmakeri is sister to G. victoria.
SSP 8.1 Ecuadorian Plumeleteer Chalybura intermedia Bronze-tailed Plumeleteer C. urochrysia Species status of C. b. intermedia uncertain, but see Ridgely and Greenfield 2001. Current assignment (7.4) of subspecies to C. buffoni vs C. urochrysia is provisional
SSP 8.1 Lilacine Amazon Amazona lilacina Red-lored Amazon A. autumnalis Pilgrim 2010 unpubl, Donegan et al. 2016, HBW. Stet ssp status pending full workup
  NEW 8.1 Cordillera Azul Antbird Myrmoderus eowilsoni Newly described, distinct species sister to M. ferrugineus (Moncrieff et al. 2018, SACC 763).
  AS 8.1 Purple-backed Fairywren Malurus assimilis Variegated Fairywren M. lamberti McLean et al. 2012, 2017.  Putative hybrid zone with limited gene flow.  Nonsister Variegated Fairywren M. lamberti would be monotypic.
AL 8.1 Liberian Greenbul Phyllastrephus leucolepis Icterine Greenbul P. icterinus Enigmatic Liberian Greenbul is deemed to be a plumage variant of Icterine Greenbul P. icterinus (Phalan et al. 2013, Collinson et al. 2017, HBW)
  AS 8.1 Sclater's Nightingale-Thrush Catharus maculatus 'Gould's [Spotted] Nightingale-Thrush C. dryas Halley et al. 2017
  SSP 8.1 Hainan Laughingthrush Garrulax monachus Black-throated Laughingthrush G. chinensis Wu et al. 2012, HBW.  Slight genetic differences. No vocals. Didn't include similar G.c. germaini, or G. propinquus. Stet as PS subspecies of G. chinensis
  SSP 8.1 Ashambu Blue Robin Sholicola ashambuensis White-bellied Blue Robin S. albiventris Described as a new species (Robin et al. 2017). More white below; vocals. English name provisional. Treat provisionally (8.1) as subspecies of S. albiventris
  AS 8.1 Western Miombo Sunbird Cinnyris gertrudis  Eastern Miombo [Double-collared] Sunbird C. manoensis Irwin et al. 2014, HBW, Bowie MS. Previous species name pintoi is a junior subjective synonym of gertrudis. English names under discussion
  AS 8.1 Peruvian Pipit Anthus peruvianus Yellowish Pipit A. lutescens Peruvian Pipit A. peruvianus is split from Yellowish Pipit A. lutescens (Van Els and Norambuena 2017, HBW, SACC 765)
  AS 8.1 Puna Pipit Anthus brevirostris Campos [Short-billed] Pipit A. furcatus Puna Pipit A. brevirostris is split from Short-billed Pipit A. furcatus (Van Els and Norambuena 2017). ENG
PS 7.3 Western Willet Tringa inornata [Eastern] Willet T. semipalmata Stet subspecies rank for now (Oswald et al. 2016. NACC 2017-A-10 decline).
AL 7.3 Thayer's Gull Larus thayeri Iceland Gull L. glaucoides Treat as subspecies of Iceland Gull (Godfrey 1986, Snell 2002, NACC 2017-C-7)
PL 7.3 Fork-tailed Drongo-Cuckoo Surniculus dicruroides Square-tailed Drongo-Cuckoo S. lugubris H&M4, Eaton et al. 2016. Species limits of drongo-cuckoos uncertain. Stet for now
  AS 7.3 Plume-toed Swiftlet Collocalia affinis  Glossy Swiftlet  C. esculenta Rheindt et al. 2017. English name provisional. Includes elachyptera, cyanoptila, vanderbilti, oberholseri
  AS 7.3 Christmas Island Swiftlet Collocalia natalis  Glossy Swiftlet  C. esculenta Rheindt et al. 2017. Monotypic
  AS 7.3 Ridgetop Swiftlet Collocalia isonota  Glossy Swiftlet  C. esculenta Rheindt et al. 2017. Includes bagabo
  AS 7.3 Grey-rumped Swiftlet Collocalia marginata  Glossy Swiftlet  C. esculenta Rheindt et al. 2017. Includes septentrionalis
  AS 7.3 Tenggara Swiftlet Collocalia sumbawae  Glossy Swiftlet  C. esculenta Rheindt et al. 2017. Includes sumbae
  AS 7.3 Drab Swiftlet Collocalia neglecta  Glossy Swiftlet  C. esculenta Rheindt et al. 2017. Includes perneglecta
  AS 7.3 Satin Swiftlet Collocalia uropygialis  Glossy Swiftlet  C. esculenta Rheindt et al. 2017. Includes albidior
DEL 7.3 Bogota Sunangel Heliangelus zusii Hybrid Long-tailed Sylph (Aglaiocercus kingii) X ??? Pérez-Emán et al. 2017
SSP 7.3 Mesoamerican Flicker Colaptes mexicanoides Northern Flicker C. auratus Stet subspecies for now (Manthey et al. 2017; NACC 2017-C-4)
PS 7.3 Malee Whipbird Psophodes leucogaster Western Whipbird P. nigrogularis Burbidge et al. 2017; includes ssp lashmari. See 8.2
SSP 7.3 Least Vireo Vireo pusillus Bell's Vireo V. bellii Klicka et al. 2016. Includes arizonae. NACC 2017-C-14 split vote declined
  AS 7.3 Northern Shrike Lanius borealis Great Grey Shrike L. excubitor Northern Shrike is sister to Loggerhead Shrike L. ludovicianus; includes ssp sibiricus, bianchii, mollis, and funereus (Olsson et al. 2010, Johnsen et al. 2010, H&M4, NACC 2017-B-8)
  AS 7.3 Natewa Silktail Lamprolia klinesmithi [Taveuni] Silktail L. victoriae Andersen et al. 2017
PS 7.3 Imeri Wren  Cyphorhinus transfluvialis  Musician Wren  C. arada  Bocalini & Silveira 2016; SACC needs proposal. Stet ssp/PS for now
PS 7.3 Ferruginous Wren  Cyphorhinus modulator  Musician Wren  C. arada Bocalini & Silveira 2016; SACC needs proposal. Stet ssp/PS for now
PS 7.3 Grey-eared Wren  Cyphorhinus salvini  Musician Wren  C. arada Bocalini & Silveira 2016; SACC needs proposal. Stet ssp/PS for now
PS 7.3 Rondonia Wren  Cyphorhinus interpositus  Musician Wren  C. arada Bocalini & Silveira 2016; SACC needs proposal. Stet ssp/PS for now
PS 7.3 Grey-flanked Wren  Cyphorhinus griseolateralis  Musician Wren  C. arada Bocalini & Silveira 2016; SACC needs proposal. Stet ssp/PS for now
SSP 7.3 'Mesoamerican' Creeper  Certhia albescens  Brown Creeper C. americana  Manthey et al. (2011ab, 2015, 2016) NACC 2017-C-2 decline.
SSP 7.3 Grayson's Thrush Turdus graysoni Rufous-backed Robin T. rufopalliatus  Stet subspecies status. Montaño-Rendon et al. (2015), NACC 2017-B-3 decline
  AS 11.2 Taiwan Thrush Turdus niveiceps Island Thrush T. poliocephalus Usually treated as a subspecies of Turdus poliocephalus, but the sexually dimorphic niveiceps is not a member of the Island Thrush complex (Nylander et al. 2008; Fjeldså et al. 2020).
  AS 7.3 Banasura Laughingthrush Montecincla jerdoni Nilgiri [Black-chinned] Laughingthrush M. cachinnans Praveen & Nameer 2012, Robin et al. 2017. Change genus from Trochalopteron to Montecincla. Restore previous English name Nilgiri Laughing Thrush.
  AS 7.3 Ashambu Laughingthrush Montecincla meridionale Palani [Kerala] Laughingthrush M. fairbanki Praveen & Nameer 2012, Robin et al. 2017.  Change genus from Trochalopteron to Montecincla
DEL 7.3 Ventania Yellow Finch Sicalis holmbergi Greater Yellow Finch S. auriventris López-Lanús 2017, SACC 748 (No)
PS 7.3 Calaveras Warbler Oreothlypis ridgwayi Nashville Warbler O. ruficapilla Stet subspecies status  (Weir and Schluter 2004, Smith et al. 2005; NACC 2017-C-5
  AS 7.3 Cassia Crossbill Loxia sinesciuris Red Crossbill L. curvirostra Benkman et al. 2009, Parchman et al. 2016, NACC 2017-A-4. ENG South Hills Crossbill
PL 7.3 Arctic/Hoary Redpoll Acanthis hornemanni Common Redpoll A. flammea Decline proposed lump of Arctic/Common Redpoll pending confirmation of nonassortative mating (Mason & Taylor 2015, NACC 2017-B-7 split vote.)
  AS 7.3 Lesser Redpoll Acanthis cabaret Common Redpoll A. flammea Knox 2001, Ottvall et al. 2002, Marthinsen et al. 2008, Mason & Taylor 2015, BOU, H&M4, NACC 2017-B-7
  AS 7.3 Baird's Junco Junco bairdi Yellow-eyed Junco J. phaeonotus Milá et al. 2016, NACC 2017-A-11
  AS 7.2 Black-fronted Francolin Pternistis atrifrons Chestnut-naped Francolin P. castaneicollis Töpfer et al. 2014
  AS 7.2 American Barn Owl Tyto furcata Western Barn Owl T. alba Nijman and Aliabadian 2013, König & Weick, 2009, Aliabadian et al. 2016.
AL 7.2 Archbold's Owlet-nightjar Aegotheles archboldi Mountain Owlet-nightjar A. albertisi Beehler & Pratt 2016
  AS 7.2 Blue-vented Hummingbird Amazilia hoffmanni Steely-vented Hummingbird A. saucerottei Blue-vented Hummingbird is a distinct member of the Middle American A. cyanura species group, not saucerottei (Stiles & Skutch 1989, McGuire et al. 2014, Jiménez & Ornelas 2015). Note hoffmanni, not sophiae.
  AS 7.2 Peruvian Racket-tail Ocreatus peruanus [White-]Booted Racket-tail O. underwoodii Schuchmann et al. 2016, SACC Apodiformes/62A
PS 7.2 Anna's Racket-tail Ocreatus annae [White-]Booted Racket-tail O. underwoodii Schuchmann et al. 2016; await more data
SSP 7.2 Choco Parakeet Pyrrhura pacifica Maroon-tailed Parakeet P. melanura Ridgely and Greenfield 2001, Donegan et al. 2016, SACC 524, HBW. Stet SSP/PS pending full revision.
  AS 7.2 Rufous-booted  Racket-tail Ocreatus addae [White-]Booted Racket-tail O. underwoodii Schuchmann et al. 2016; Includes annae as ssp. English name provisional
SSP 7.2 Upper Magdalena Parakeet Pyrrhura chapmani Maroon-tailed Parakeet P. melanura Fjeldsa & Krabbe 1990,  Donegan et al. 2016. Stet SSP/PS pending full revision.
  AS 7.2 Cordilleran Parakeet Psittacara frontatus Scarlet-fronted Parakeet P. wagleri Includes minor.  Corey 1918, Sibley & Monroe 1990, Ridgely and Greenfield 2001, HBW 2014, SACC Psittaciformes/7, Donegan et al. 2016
SSP 7.2 Orinoco Amazon Amazona bodini Festive Amazon A. festiva Donegan et al. 2016; await supporting data. Stet SSP/PS pending full analysis
  NEW 7.2 Tatama Tapaculo Scytalopus alvarezlopezi Stiles et al. 2017
  AS 7.2 Cachar Bulbul Iole cacharensis Olive Bulbul I. viridescens Manawatthana et al. 2017; English name provisional
  AS 7.2 Charlotte's Bulbul Iole charlottae Buff-vented Bulbul I. crypta Manawatthana et al. 2017; English name provisional. See also proposed taxonomic changes
  AS 7.2 Whyte's Double-collared Sunbird Cinnyris whytei Ludwig's Double-collared Sunbird C. ludovicensis Bowie 2003, Bowie et al. 2015. Includes skye.
  AS 7.1 Foveaux Shag Leucocarbo stewarti Otago [Stewart Island] Shag L. chalconotus Rawlence et al. 2016
PS 7.1 Samoan Wood Pigeon Columba castaneiceps Metallic Pigeon C. vitiensis Pratt & Mittermeier 2016. Stet as ssp pending full revision of species complex
  AS 7.1 White-throated Wedgebill Schistes albogularis Geoffroy's Wedgebill [Wedge-billed Hummingbird] S. geoffroyi HBW Alive, Donegan et al. 2015. SACC 774 accepted. ENG?
  AS 7.1 Merida Sunangel Heliangelus spencei Amethyst-throated Sunangel H. amethysticollis HBW Alive, Donegan et al. 2015; "Amethystine" Sunangel?
  AS 7.1 Longuemare's Sunangel Heliangelus clarisse Amethyst-throated Sunangel H. amethysticollis HBW Alive, Donegan et al. 2015; "Amethystine" Sunangel?
PS 7.1 Perija Starfrontlet Coeligena consita Golden-bellied Starfrontlet C. bonapartei HBW Alive, Donegan et al. 2015; stet PS for now
PS 7.1 Golden Starfrontlet Coeligena eos Golden-bellied Starfrontlet C. bonapartei HBW Alive, Donegan et al. 2015; stet PS for now
PS 7.1 Green Inca Coeligena conradii  Collared Inca C. torquata  HBW Alive, Donegan et al. 2015; stet PS for now
PS 7.1 Peale's Kingfisher Todiramphus pealei Pacific Kingfisher T. sacer Pratt and Mittermeier 2016; includes manuae. Stet as ssp pending full revision of species complex
PL 7.1 Barbary Falcon Falco pelegrinoides Peregrine Falcon F. peregrinus White et al. 2013, H&M4, Fuchs et al. 2015, HBW Alive, Wink 2015. Stet PL until consensus
  AS 7.1 Darwin's Flycatcher Pyrocephalus nanus Vermilion Flycatcher P. [rubinus] obscurus Carmi et al. 2016
  AS 7.1 San Cristobal Flycatcher Pyrocephalus dubius Vermilion Flycatcher P. [rubinus] obscurus Carmi et al. 2016
  AS 7.1 Scarlet Flycatcher Pyrocephalus rubinus Vermilion Flycatcher  P. [rubinus] obscurus  Carmi et al. 2016
  AS 7.1 Double-collared Crescentchest Melanopareia bitorquata Collared Crescentchest M. torquata Lopes & Gonzaga 2016
PS 7.1 Samoan Myzomela Myzomela nigriventis Cardinal Myzomela M. cardinalis Pratt and Mittermeier 2016. Stet as ssp pending full revision of species complex
PS 7.1 Manua Shrikebill Clytorhynchus powelli Fiji Shrikebill C. vitiensis Pratt & Mittermeier 2016. Stet as ssp pending full revision of species complex
PS 7.1 Manua Starling Aplonis manuae Polynesian Starling A. tabuensis Pratt and Mittermeier 2016. Stet as ssp pending full revision of species complex
  AS 7.1 Mediterranean Flycatcher Muscicapa tyrrhenica Spotted Flycatcher M. striata Vigano & Corso 2015, Pons et al. 2016; incl balearica
PS 7.1 Samoan Thrush Turdus samoensis Island Thrush T. poliocephalus Pratt & Mittermeier 2016
  AS 7.1 Chinese Rubythroat Calliope tschebaiewi Himalayan [White-tailed] Rubythroat C. pectoralis Liu et al. 2016
  AS 7.1 Genovesa Ground Finch Geospiza acutirostris Sharp-beaked Ground Finch G. difficilis Lamichhaney et al. 2015, SACC 676A-7/1; English name provisional
  AS 7.1 Vampire Ground Finch Geospiza septentrionalis Sharp-beaked Ground Finch G. difficilis Lamichhaney et al. 2015, SACC 676A-7/1;English name provisional
  AS 7.1 Genovesa Cactus Finch Geospiza propinqua 'Espanola Cactus [Large Cactus] Finch G. conirostris Lamichhaney et al. 2015, SACC 676B-7/1; G. conirostris is sister to G. magnirostris. 
AL 6.4 Violet-throated Toucanet Aulacorhynchus cognatus Blue-throated Toucanet A. caeruleogularis Winker 2016
AL 6.4 Santa Marta Toucanet Aulacorhynchus lautus White-throated Toucanet A. albivitta Winker 2016
AL 6.4 Grey-throated Toucanet Aulacorhynchus griseigularis White-throated Toucanet A. albivitta Winker 2016
  AS 6.4 Chestnut-throated Flycatcher Myiagra castaneigularis Azure-crested Flycatcher M. azureocapilla Andersen et al. 2015, Clements 2016; includes whitneyi.
  AS 6.4 Baliem Whistler Pachycephala balim Yellow-throated  Whistler P. macrorhyncha Andersen et al. 2014, Beehler & Pratt 2016, Clements 2016
SSP 6.4 Hierro Blue Tit  Cyanistes ombriosus  African Blue Tit  Cyanistes teneriffae Sangster 2006, Stervander et al. 2015, Illera et al. 2016; ssp of teneriffae
PS 6.4 Canary Islands Blue Tit Cyanistes teneriffae  African Blue Tit Cyanistes teneriffae Sangster 2006, Stervander et al. 2015, Illera et al. 2016; includes hedwigae, ombriosus. ENG
SSP 6.4 Gran Canaria Blue Tit Cyanistes hedwigae  African Blue Tit Cyanistes teneriffae Sangster 2006, Stervander et al. 2015, Illera et al. 2016; subspecies of teneriffae
PS 6.4 North African Blue Tit  Cyanistes ultramarinus  African Blue Tit Cyanistes teneriffae Sangster 2006, Stervander et al. 2015, Illera et al. 2016; includes degener; ENG?
SSP 6.4 Fuerteventura Blue Tit Cyanistes degener  African Blue Tit Cyanistes teneriffae Sangster 2006, Stervander et al. 2015, Illera et al. 2016; subspecies of ultramarinus
PS 6.4 Cyrenaican Blue Tit  Cyanistes cyrenaicae  African Blue Tit Cyanistes teneriffae Sangster 2006, Stervander et al. 2015, Illera et al. 2016; monotypic
PS 6.4 La Palma Blue Tit Cyanistes palmensis  African Blue Tit  Cyanistes teneriffae Sangster 2006, Stervander et al. 2015, Illera et al. 2016; monotypic
  AS 6.4 Mongolian Short-toed Lark Calandrella dukhunensis Greater Short-toed Lark C. brachydactyla Alström et al. 2013, Stervander 2016, Clements 2016.
  AS 6.4 Streak-eared Bulbul Pycnonotus conradi Irrawaddy [Streak-eared] Bulbul P. blanfordi Garg et al. 2016
  AS 6.3 Grey-faced Petrel Pterodroma gouldi Great-winged Petrel P. macroptera Wood et al. 2016
  AS 6.3 Ainley's Storm Petrel Oceanodroma cheimomnestes Leach's Storm Petrel O. leucorhoa NACC 2016-C-16
  AS 6.3 Townsend's Storm Petrel Oceanodroma socorroensis Leach's Storm Petrel O. leucorhoa NACC 2016-C-16
  AL 6.3 Caribbean Coot Fulica caribaea American Coot F. americana Caribbean Coot is a white shield color morph/ subspecies of American Coot (HBW Alive, Donegan et al. 2015, NACC 2016-A-9)
PS 5.4 Tepui Nightjar Systellura roraimae Band-winged Nightjar S. longirostris Cleere 2010, SACC 677B DECLINED
PS 5.4 Rufous-naped Nightjar Systellura ruficervix Band-winged Nightjar S. longirostris Cleere 2010, SACC 677B DECLINED
  AS 6.3 Cyprus Scops Owl Otus cyprius Eurasian Scops Owl O. scops Flint et al. 2015
  AS 6.3 Lesser Violetear Colibri cyanotus Mexican [Green] Violetear C. thalassinus Remsen et al. 2015, NACC 2016-C-10
  AS 6.3 Red-backed Flameback Dinopium psarodes Black-rumped Flameback D. benghalense HBW Alive, Fernando et al. 2016; Hybrid zone analysis indicates essential reproductive isolation.
  SSP 6.3 Talaud Pitta Erythropitta inspeculata Philippine [Red-bellied] Pitta E. erythrogaster Irestedt et al. 2013 Collar et al. 2015; H&M4 ssp group 1. Stet ssp of erythrogaster
  SSP 6.3 Sulu Pitta Erythropitta yairocho Philippine [Red-bellied] Pitta E. erythrogaster Irestedt et al. 2013. Stet ssp of erythrogaster
  AS 6.3 Sula Pitta Erythropitta dohertyi Philippine [Red-bellied] Pitta E. erythrogaster Irestedt et al. 2013, Collar et al. 2013; H&M4 ssp group 2.
  AS 6.3 Siao Pitta Erythropitta pallidiceps Philippine [Red-bellied] Pitta E. erythrogaster Irestedt et al. 2013, Collar et al. 2013; H&M4 ssp group 2.
  AS 6.3 Sangihe Pitta Erythropitta caeruleitorques Philippine [Red-bellied] Pitta E. erythrogaster Irestedt et al. 2013, Collar et al. 2013; H&M4 ssp group 2.
  AS 6.3 Sulawesi Pitta Erythropitta celebensis Philippine [Red-bellied] Pitta E. erythrogaster Irestedt et al. 2013, Collar et al. 2013; H&M4 ssp group 2.
  AS 6.3 South Moluccan Pitta Erythropitta rubrinucha Philippine [Red-bellied] Pitta E. erythrogaster Irestedt et al. 2013, Collar et al. 2015. Includes  piroensis. H&M4 ssp group #4.
  SSP 6.3 Seram Pitta Erythropitta piroensis Philippine [Red-bellied] Pitta E. erythrogaster Irestedt et al. 2013. Ssp of  South Moluccan Pitta
  AS 6.3 Louisiade Pitta Erythropitta meeki Philippine [Red-bellied] Pitta E. erythrogaster Irestedt et al. 2013, Collar et al. 2015. H&M4 ssp group #8
  AS 6.3 North Mollucan Pitta Erythropitta rufiventris Philippine [Red-bellied] Pitta E. erythrogaster Irestedt et al. 2013; Collar et al. 2015. Includes cyanonota, bernsteini, [obiensis, inornata]. H&M4 ssp group #3.
  AS 6.3 Bismarck Pitta Erythropitta novaehibernicae Philippine [Red-bellied] Pitta E. erythrogaster Irestedt et al. 2013; includes extima, splendida, gazellae. H&M4 ssp group #7.
SSP 6.3 New Britain Pitta Erythropitta gazellae Philippine [Red-bellied] Pitta E. erythrogaster Irestedt et al. 2013. H&M4 ssp group #7. Ssp of Bismarck Pitta.
SSP 6.3 Tabar Pitta Erythropitta splendida Philippine [Red-bellied] Pitta E. erythrogaster Irestedt et al. 2013. H&M4 subspecies group #7. Ssp of Bismarck Pitta.
  AS 6.3 Papuan Pitta Erythropitta macklotii Philippine [Red-bellied] Pitta E. erythrogaster Irestedt et al. 2013, Collar et al. 2015, Beehler & Pratt 2016). Includes habenichti, finschiiloriae/"oblita", digglesi,[aruensis, kuehni, strenua, yorki]. H&M4 ssp group #5-6
SSP 6.3 Habenicht's Pitta Erythropitta habenichti Philippine [Red-bellied] Pitta E. erythrogaster Irestedt et al. 2013,  Collar et al 2015. Ssp of Papuan Pitta. H&M4 ssp group #6;
SSP 6.3 D'Entrecasteaux Pitta Erythropitta finschii Philippine [Red-bellied] Pitta E. erythrogaster Irestedt et al. 2013. Collar et al 2015.  Ssp of Papuan Pitta. H&M4 ssp group #7,
SSP 6.3 Sao Paulo Antwren Stymphalornis [Formicivora] paludicola Parana [Marsh] Antwren S. acutirostris Buzzetti et al. 2013; SACC 693 3/5; subspecies for now
  AS 6.3 Ayacucho Thistletail Asthenes ayacuchensis Vilcabamba Thistletail A. vilcabambae Hosner et al. 2015; SACC 697:7/0
  AS 6.3 Aceh Bulbul Pycnonotus snouckaerti Orange-spotted Bulbul P. bimaculatus Eaton & Collar 2015
  AS 6.3 Isthmian Wren Cantorchilus elutus Cabanis's [Plain] Wren C. modestus Saucier et al. 2015, NACC 2016-C-14
  AS 6.3 Canebrake Wren Cantorchilus zeledoni Cabanis's [Plain] Wren C. modestus Stiles et al. 1989, Ridgely & Gwynne 1989, AOU 1998, Saucier et al. 2015, NACC 2016-C-14
  AS 6.3 Santa Marta Wood Wren Henicorhina anachoreta Grey-breasted Wood Wren H. leucophrys Caro et al. 2013, SACC 700 7/0; English name provisional
  NEW 6.3 Himalayan Thrush Zoothera salimalii   Alström et al. 2016; ENG  Forest Thrush (Turdus lherminieri)
  AS 6.3 Sichuan Thrush Zoothera griseiceps Alpine [Plain-backed] Thrush Z. mollissima Alström et al. 2016; ENG Forest Thrush (Turdus lherminieri)
SSP 6.3 Grayson's Thrush Turdus graysoni Rufous-backed Thrush T. rufopalliatus Montaño-Rendón et al. 2015. Vocals? Stet subspecies status for now
SSP 6.3 Campina Thrush Turdus arthuri Black-billed Thrush T. ignobilis Cerqueira et al. 2016; stet PS SSP pending resolution of (unsampled) ssp ignobilis and goodfellowi.SACC?
SSP 6.3 Amazonian Thrush Turdus debilis Black-billed Thrush T. ignobilis Cerqueira et al. 2016; stet PS SSP as above. SACC?
SSP 6.3 Lilian's Meadowlark Sturnella lilianae Eastern Meadowlark S. magna Includes auropectoralis and saundersi; NACC 2016-C-2 declined.
  AS 6.3 Gran Canaria Blue Chaffinch Fringilla polatzeki [Tenerife] Blue Chaffinch F. teydea Sangster et al. 2015
  AS 6.2 Sultan's Cuckoo-Dove Macropygia doreya  Amboyna [Slender-billed] Cuckoo-Dove M. amboienensis Ng et al. 2016. Incl albicapilla, albiceps, atrata, sanghirensis, sedecima, balim. English name provisional
  AS 6.2 Enggano Cuckoo-Dove Macropygia cinnamomea Ruddy Cuckoo-Dove M. emiliana Ng et al. 2016. Monotypic
  AS 6.2 Barusan Cuckoo-Dove Macropygia modiglianii Ruddy Cuckoo-Dove M. emiliana Ng et al. 2016. Incl elassa, hypopercna
  AS 6.2 Tanimbar Cuckoo-Dove Macropygia timorlaoensis Timor [Bar-necked] Cuckoo-Dove M. magna Ng et al. 2016. Monotypic
  AS 6.2 Flores Sea Cuckoo-Dove Macropygia macassariensis Timor [Bar-necked] Cuckoo-Dove M. magna Ng et al. 2016. Incl longa
  AS 6.2 Sula Cuckoo-Dove Turacoena sulaensis White-faced [Cuckoo-] Dove T. manadensis Ng & Rheindt 2016
  AS 6.2 Purple-capped Fruit Dove Ptilinopus ponapensis Crimson-crowned Fruit Dove P. porphyraceus Cibois et al. 2014, Hayes et al. 2016
  AS 6.2 Kosrae Fruit Dove Ptilinopus hernsheimi Crimson-crowned Fruit Dove P. porphyraceus Hayes et al. 2016
  AS 6.2 Turquoise-throated Barbet Psilopogon chersonesus Blue-throated Barbet P. asiaticus Sister to P. oorti, den Tex and Leonard 2013, Clements 6.9, HBW Alive
  AS 6.2 Necklaced Barbet Psilopogon auricularis Golden-throated Barbet P. franklinii den Tex and Leonard 2013, HBW Alive
  AS 6.2 Coopmans's Elaenia Elaenia brachyptera Lesser Elaenia E. chiriquensis Rheindt et al 2015; SACC 686
  AS 6.2 Tan-capped Catbird Ailuroedus geislerorum White-eared Catbird A. buccoides Irestedt et al. 2015; includes molestus. English names?
  AS 6.2 Ochre-breasted Catbird Ailuroedus stonii White-eared Catbird A. buccoides Irestedt et al. 2015; includes cinnamomeus. English names?
  AS 6.2 Spotted Catbird Ailuroedus maculosus  Black-eared [Spotted] Catbird A. melanotis Irestedt et al. 2015
  AS 6.2 Black-capped Catbird Ailuroedus melanocephalus Black-eared [Spotted] Catbird A. melanotis Irestedt et al. 2015
  AS 6.2 Huon Catbird Ailuroedus astigmaticus Black-eared [Spotted] Catbird A. melanotis Irestedt et al. 2015
  AS 6.2 Arfak Catbird Ailuroedus arfakianus Black-eared [Spotted] Catbird A. melanotis Irestedt et al. 2015; includes misoliensis.
  AS 6.2 Northern Catbird Ailuroedus jobiensis Black-eared [Spotted] Catbird A. melanotis Irestedt et al. 2015; includes guttaticollis
  AS 6.2 Temotu Whistler Pachycephala vanikorensis Fiji Whistler P. vitiensis Includes ornata and  utupae, as well as vanikorensis [from Melanesian Whistler Pachycephala chlorura](Andersen et al. 2014, Jønsson et al. 2014). Temotu is the local name of the [Santa Cruz] islands and the current and official name of that province in the Solomon Islands
  AS 6.2 Grey-brown White-eye Zosterops ponapensis Kosrae [Grey-brown] White-eye Z. cinereus Hayes et al. 2016;  English name Grey-brown White-eye appropriate to and established for ponapensis. Rename Z. cinereus 'Kosrae White-eye' (D. Pratt)
  AS 6.2 Dark-eyed White-eye Zosterops tetiparius Solomons White-eye Z. kulambangrae Includes paradoxus (Moyle et al. 2009, H&M4, but also see H&M4: 644, Mees 1955 re use of rendovae)
  AS 6.2 Forest White-eye Zosterops stenocricotus African Yellow White-eye Z. senegalensis Vocally distinct sister to (Speirops) brunneus on Bioko Is; not a member of the  senegalensis cryptic species complex (Fry et al. 2000, Cox 2013, Cox et al. 2014). English name ok?
SSP 6.2 Taiwan Thrush Turdus niveiceps Island Thrush T. poliocephalus Nylander et al. 2008, H&M4; stet ssp status for now
SSP 6.2 Yunnan Parrotbill Sinosuthora ricketti Brown-winged Parrotbill S. brunnea Deignan 1964, Robson 2007, Penhallurick & Robson 2009, Yeung et al. 2011. STET subspecies pending further research
SSP+ 6.2 Grass Wren Cistothorus elegans Grass Wren C. platensis Robbins and Nyári 2014.  Includes tinnulus, potosinus, jalapensis, warneri, russelli, graberi, and lucidus.
SSP+ 6.2 Austral Wren Cistothorus hornensis Grass Wren C. platensis Robbins and Nyári 2014.  Includes falklandicus
SSP+ 6.2 Tucuman Wren Cistothorus tucumanus Grass Wren C. platensis Robbins and Nyári 2014.  Includes boliviae
SSP+ 6.2 Puna Wren Cistothorus minimus Grass Wren C. platensis Robbins and Nyári 2014.
SSP+ 6.2 Junin Wren Cistothorus graminicola Grass Wren C. platensis Robbins and Nyári 2014.
SSP+ 6.2 Paramo Wren Cistothorus aequatorialis Grass Wren C. platensis Robbins and Nyári 2014. Includes tamaetolimae
SSP+ 6.2 Venezuelan Wren Cistothorus alticola Grass Wren C. platensis  Robbins and Nyári 2014.
NEW 6.2 Ibera Seedeater Sporophila iberaensis Di Giacomo & Kopuchian 2016; SACC proposal badly needed. Appropriate scientific name remains unsettled (SACC Thraupidae Footnote 116).
  AS 6.1 Tschudi's Nightjar Systellura decussata Band-winged Nightjar S. longirostris Cleere 2010, SACC 677A 10/0; English name=Desert Nightjar? Genus?
  NEW 6.1 Western Striolated Puffbird Nystalus obamai Eastern Striolated Puffbird N. striolatus Whitney et al. 2013e, SACC 617, 679, 701.
SSP 6.1 Pacific Fulmar Fulmarus rodgersii Northern Fulmar F. glacialis Stet subspecies; see Kerr & Dove 2013 for PS status of F. rodgersii
SSP 6.1 Northern Silvery Grebe Podiceps juninensis [Southern] Silvery Grebe P. occipitalis Stet subspecies pending better contact zone info (Fjeldså & Krabbe 1990, Jaramillo 2003, Del Hoyo & Collar 2014, Ogawa et al. 2015).
SSP 6.1 Eastern Striolated Puffbird Nystalus torridus [Natterer's] Striolated Puffbird N. striolatus SACC 617 declined; stet as subspecies of N. striolatus pending completion of SACC 679 discussion
SSP 6.1 Mallee Whipbird Psophodes leucogaster Western Whipbird P. nigrogularis Schodde & Mason 1999, Christidis & Boles 2008, Toon et al. 2013; await full study
SSP 6.1 Western Subalpine Warbler Sylvia inornata [Eastern] Subalpine Warbler P. cantillans Svensson 2013ab; includes new ssp iberiae. Await revision of species complex.
SSP 6.1 Santa Marta Wood Wren Henicorhina anachoreta Grey-breasted Wood Wren H. leucophrys Stet subspecies status pending review of species complex. See Caro et al. 2013)
  AS 6.1 Sedge Wren Cistothorus stellaris Grass [Sedge] Wren C. platensis Robbins and Nyári 2014;  Middle and South American members of this species complex await revision.
SSP 6.1 'Okinawa Flycatcher' Ficedula owstoni Narcissus Flycatcher F. narcissina Dong et al. 2015. English name under discussion. Await data on additional populations
  AS 6.1 Bundok Flycatcher Fidecula luzoniensis Snowy-browed Flycatcher F. hyperythra Philippine populations of Snowy-browed Flycatcher are members of a different species clade (Moyle et al. 2015, Clements et al. 2015).
SSP 6.1 Visayan Shama Copsychus superciliarus White-browed Shama C. luzoniensis Lim et al. 2010, Collar 2011b, not H&M4 nor HBW. Stet ssp
  AS 6.1 Merida Brush Finch Atlapetes meridae Moustached Brush Finch A. albofrenatus Donegan et al. 2014
SSP 6.1 Cayman Bullfinch Melopyrrha taylori Cuban Bullfinch M. nigra Bradley 2000, H&M4, Garrido et al. 2014; NACC 2016-A-5.

 

This page provides a working list of Proposed Splits/Lumps (PS/PL) and Newly Described Species (NEW) that are candidates for addition to or deletion from the IOC World List. Accepted Splits (AS, green) will be finalized and added to the World List with updates twice yearly. Others (grey) will be retained as active candidates or deleted with the option of future reconsideration. Decisions through 2015 are available on a separate page.

 

   Posted    English Name            Scientific Name         Parent  Parent (sci) Proposal
  PS 12.2 Red Grouse Lagopus scotica Willow Ptarmigan Lagopus lagopus Red Grouse is a proposed split from Willow Ptarmigan  based on molecular evidence and differences in plumage (Sangster et al. 2022).
  PS 12.2 Tagula Manucode  Manucodia alter Glossy-mantled Manucode  Manucodia ater Tagula Manucode is a proposed split from Glossy-mantled Manucode based on significant vocal differences and some differences in morphology (Gregory 2017).
         
         
  AS 12.1 Elgon Francolin Scleroptila elgonensis Moorland Francolin Scleroptila psilolaema Elgon Francolin is split from Moorland Francolin based on differences in vocalizations and plumage (Hunter et al. 2019; HBW/Birdlife, N. Redman in litt.)).
PS 12.1 Savanna Nightjar Caprimulgus monticolus Allied Nightjar Caprimulgus affinis Caprimulgus monticolus (including amoyensis and stictomus) is a proposed split from C. affinis which would assume the English name "Allied Nightjar". English names under discussion and differ from those  those suggested in the publication. (Sangster et al. 2021).
PS 12.1 Kayumanggi Nightjar Caprimulgus griseatus Allied Nightjar Caprimulgus affinis C. griseatus (including mindanensis) is a proposed split from C. affinis. English name under discussion (Sangster et al. 2021).
PS 12.1 Eastern Rockhopper Penguin Eudyptes filholi Southern Rockhopper Penguin Eudyptes chrysocome Eastern Rockhopper Penguin Eudyptes filholi is a proposed split from E. chrysocome based on an integrative taxonomy including genetic and morphological differences and strict allopatry (Frugone et al. 2021).
PS 12.1 Kermadec Storm Petrel Pelagodroma albiclunis White-faced Storm Petrel Pelagodroma marina Kermadec Storm Petrel Pelagodroma albiclunis is a proposed split from White-faced Storm Petrel based on consistent striking differences in plumage and tail morphology (Gill et al. 2010).
AS 7.1 Yellow-billed Egret Ardea brachyrhyncha Intermediate Egret A. intermedia African Ardea brachyrhyncha is a proposed split from Asian A. intermedia on the basis of striking differences in breeding cycle soft part coloration (Cake et al. 2016; HBW/Birdlife).
AS 7.1 Plumed Egret Ardea plumifera Intermediate Egret A. intermedia Australasian Ardea plumifera is a proposed split from Asian A. intermedia on the basis of striking differences in breeding cycle soft part coloration, morphometrics and calls (HBW/Birdlife; Rasmussen & Anderton 2012).
PS 12.1 Walden's Scops Owl Otus modestus Oriental Scops Owl Otus sunia Otus modestus is a proposed split from O. sunia on the basis of unique vocalizations (Rasmussen & Anderton 2012).
  AS 12.1 Wetar Scops Owl Otus tempestatis Moluccan Scops Owl Otus magicus Wetar Scops Owl Otus tempestatis is split from Otus magicus based on distinct vocalizations (Eaton et al. 2021; HBW/Birdlife).
PS 12.1 Brown Wood Owl Strix indranee Sunda Wood Owl Strix leptogrammica Asian mainland Brown Wood Owl Strix indranee (seven subspecies) is a proposed split from Sunda Wood Owl S. leptogrammica based on vocalizations and plumage (Eaton et al. 2021). Note that the English name Brown Wood Owl follows the split species.
  AS 12.1 Brown-breasted Kingfisher Halcyon gularis White-throated Kingfisher Halcyon smyrnensis Brown-breasted Kingfisher H. gularis is split from H. smyrnensis based on plumage and vocalizations (Collar 2011b; Allen 2020; HBW/Birdlife).
  AS 12.1 Rufous-crowned Bee-eater Merops americanus Blue-throated Bee-eater Merops viridis Rufous-crowned Bee-eater Merops americanus is split from M. viridis based on morphologic differences (Collar 2011b; Allen 2020; HBW/Birdlife).
  AS 12.1 Malabar Flameback Chrysocolaptes socialis Greater Flameback Chrysocolaptes guttacristatus Chrysocolaptes socialis is split from C. guttacristatus based on differences in plumage and vocalizations (Rasmussen & Anderton 2012; Abhirami et al. 2021).
  AS 12.1 Blue-backed Parrot Tanygnathus everetti Azure-rumped Parrot Tanygnathus sumatranus Tanygnathus everetti (including duponti, freeri and burbidgii) is a proposed split from T. sumatranus based on plumage, eye color and genetic divergence (Arndt et al. 2019; Eaton et al. 2021). Note that the English name Blue-backed Parrot follows the split species.
  AS 12.1 Huon Bowerbird Amblyornis germanus MacGregor's Bowerbird Amblyornis macgregoriae Huon Bowerbird Amblyornis germanus is a proposed split from A. macgregoriae based on distinctive bower construction and unpublished molecular differences (Beehler & Pratt 2016; Gregory 2017).
  AS 12.1 Bacan Myzomela Myzomela batjanensis Sulawesi Myzomela Myzomela chloroptera Bacan Myzomela M. batjanensis is split from Sulawesi Myzomela M. chloroptera based on substantial differences in plumage and voice (Eaton et al. 2021, HBW/Birdlife).
AL 12.1 Indonesian Honeyeater Lichmera limbata Brown Honeyeater Lichmera indistincta Lichmera limbata is re-lumped with Brown Honeyeater L. indistincta based on indistinct plumage, vocalizations and genetics (Mees 2006; Dickinson & Christidis 2014; Eaton et al. 2021).
PS 12.1 Roving Cuckooshrike Coracina sumatrensis Bar-bellied Cuckooshrike Coracina striata Sundaic Coracina sumatrensis is a proposed split from endemic Philippine C. striata based on morphological differences and limited mtDNA data (Eaton et al. 2021).
PS 12.1 Visayan Cuckooshrike Coracina panayensis Bar-bellied Cuckooshrike Coracina striata Monotypic Coracina panayensis is a proposed split from C. striata based on morphological and bioacoustic differeces (Allen 2020;HBW/Birdlife).
  AS 12.1 Louisiade Monarch Symposiachrus melanopterus Spectacled Monarch Symposiachrus trivirgatus Monotypic Louisiade Monarch Symposiachrus melanopterus  is a proposed split from S. trivirgatus based on morphological differences and phylogenetic analysis (McCullough et al. 2021).
PS 12.1 Tagula Manucode Manucodia alter Glossy-mantled Manucode Manucodia ater Tagula Manucode M. alter is a proposed split from M. ater based on reportedly very different vocalizations and some morphological differences (Gregory 2017).
  AS 12.1 Flores Leaf Warbler Phylloscopus floresianus Timor Leaf Warbler Phylloscopus presbytes Phylloscopus floresianus is split from P. presbytes on the basis of plumage and vocal differences. (Eaton et al. 2021)
  AS 12.1 Guadalcanal Thicketbird Cincloramphus turipavae Melanesian (Santo) Thicketbird Cincloramphus whitneyi Split based on morphological differences and allopatry (Dutson 2011, HBW/Birdlife).
PS 12.1 Palawan Tit-Babbler Mixornis woodi Pin-striped Tit-Babbler Mixornis gularis Proposed split based on striking allopatry, plumage, and reported differences in calls (Collar & Robson 2020; Allen 2020).
PS 12.1 Brown-crowned (Phayre's) Scimitar Babbler Pomatorhinus phayrei Black-crowned (Coral-billed) Scimitar Babbler Pomatorhinus ferruginosus Pomatorhinus phayrei (including stanfordi, albogularis, orientalis and dickinsoni) is a proposed split from monotypic P. ferruginosus based on differences in plumage and vocalizations. English names under discussion (Rasmussen & Anderton 2012; HBW/Birdlife).
PS 12.1 Indochinese Babbler Malacopteron indochinense Scaly-crowned Babbler Malacopteron cinereum Malacopteron indochinense (Indochinese Babbler) is a proposed split from M. cinereum based on differences in plumage, vocalizations, and mtDNA (Eaton et al. 2021).
PS 12.1 Glissando Babbler, Leaflitter Babbler Pellorneum saturatum, Pellorneum poliogene Mourning (Short-tailed) Babbler Pellorneum malaccense Pellorneum saturatum and Pellorneum poliogene are proposed splits from P. malaccense based on pronounced vocal and genome-wide differences (Eaton et al. 2021). English names tentative.
PS 12.1 Bornean Swamp Babbler Pellorneum macropterum Malayan Swamp (White-chested) Babbler Pellorneum rostratum Proposed split based on vocal and genetic differences (Eaton et al. 2021). English names tentative.
PS 12.1 Modest Flowerpecker Dicaeum modestum Thick-billed Flowerpecker Dicaeum agile Modest Flowerpecker (including subspecies pallescens, atjehense and finschi) is a proposed split from Thick-billed Flowerpecker on the basis of vocalizations and morphology (Rasmussen & Anderton 2012; Eaton et al. 2021).
PS 12.1 Tenggara Flowerpecker Dicaeum obsoletum Thick-billed Flowerpecker Dicaeum agile Tenggara Flowerpecker (including subspecies tinctum) a proposed split from Thick-billed Flowerpecker (and is also distinguished from proposed Modest Flowerpecker) on the basis of vocalizations and morphology (Eaton et al. 2021).
PS 12.1 Orange-lined Sunbird Leptocoma juliae Purple-throated Sunbird Leptocoma sperata Proposed split based on differences in plumage (Allen 2020, HBW/Birdlife).
  AS 12.1 Ruvu Weaver Ploceus holoxanthus Eastern Golden Weaver Ploceus subaureus Resurrect P. holoxanthus as a unique species after having been mistakenly synonymized with P. subaureus for years. But critical analysis shows consistent morphological differences and it is quite genetically distinct (Turner & Kennedy 2019; Fjeldså et al. 2020; Oschadleus et al. 2021).
  AS 12.1 Australian Zebra Finch Taeniopygia castanotis (Sunda) Zebra Finch Taeniopygia guttata Australian Zebra Finch T. castanotis is split from (Sunda) Zebra Finch T. guttata based on differences in plumage, moderate mtDNA divergence. and evidence of assortive mating in captivity (Clayton 1990; Payne 2010; Olsson & Alström 2020; Eaton et al. 2021; HBW/Birdlife).
AL 12.1 Arabian Accentor Prunella fagani Radde's Accentor Prunella ocularis Arabian Accentor P. fagani is lumped with Radde's Accentor P. ocularis based on only minor differences in plumage, identical vocalizations, and insufficient genetic evidence to support a split. Treat as a non-migratory subspecies (Shirihai & Svensson 2018; Kirwan et al. 2021).
PS 12.1 African Chaffinch, Azores Chaffinch, Madeira Chaffinch, Canary Islands Chaffinch Fringilla spodiogenys, F. moreletti, F. maderensis, F. canariensis Eurasian (Common) Chaffinch Fringilla coelebs Fringilla spodiogenys (including africana and harterti), F. moreletti, F. maderensis and F. canariensis (including bakeri, ombriosa and palmae) are proposed splits from F. coelebs based on differences in plumage and genetics (Recuerda et al. 2021).
  AS 12.1 Chinese Long-tailed Rosefinch Carpodacus lepidus (Siberian) Long-tailed Rosefinch Carpodacus sibiricus Carpodacus lepidus (including henrici) is split from C. sibricus (including sanguinolentus and ussuriensis) based on genetic and plumage differences (Liu et al. 2020).
  AS 12.1 Masked Bunting Emberiza personata Black-faced Bunting  

Emberiza spodocephala

 

Monotypic E. personata is split from E. spodocephala based on morphological and genetic differences (Weissensteiner et al. 2014; Päckert et al. 2015; Brazil 2018; HBW/Birdlife).
New 12.1 Inti Tanager Heliothraupis oneilli Newly described genus and species within Thraupidae within the same clade as Black-goggled and Grey-headed Tanagers: Lane et al. 2021.
AS 11.2 Sangihe Lilac Kingfisher Cittura sanghirensis Sulawesi Lilac Kingfisher Cittura cyanotis Accepted split on the basis of genetic traits, plumage, structural and bioacoustic differences (Eaton et al. 2016, 2021; HBW/Birdlife).
PS 11.2 Mindanao Dwarf Kingfisher Ceyx mindanensis Luzon Dwarf Kingfisher Ceyx melanurus Proposed split of Ceyx mindanensis from C. melanurus (including  samarensis) on the basis of significant differences in plumage, some structural differences and phylogenetic analysis (Anderson et al. 2013; Allen 2020; HBW/BirdLife).
PS 11.2 Red-necked Falcon Falco ruficollis Red-headed Falcon Falco chicquera Red-necked Falcon F. ruficollis (including horsbrughi) is a proposed split from Asian Falco chicquera, renamed Red-headed Falcon, based on differences in plumage, preferred breeding habitat, and genetic differences (HBW/Birdlife).
  AS 11.2 Fulvous-faced Scrub Tyrant Euscarthmus fulviceps Fulvous-crowned Scrub Tyrant Euscarthmus meloryphus Proposed split based on morphological and vocal differences (Franz et al. 2020; SACC 898). English names established in SACC 916.
PS 11.2 Guadalcanal Fantail Rhipidura ocularis Brown (Bougainville) Fantail Ripidura drownei Proposed split based on plumage and vocal differences (Dutson 2011; Gregory 2017; HBW/Birdlife).
PS 11.2 Vanuatu Streaked Fantail, Fiji Streaked Fantail Rhipidura spilodera, Rhipidura layardi (New Caledonia) Streaked Fantail Rhipidura verreauxi Vanuatu Streaked Fantail Rhipidura spilodera and Fiji Streaked Fantail Rhipidura layardi (including erythronota and rufilateralis) are proposed splits from New Caledonia Streaked Fantail R. verreauxi based on plumage and vocal differences (HBW/BirdLife).
PS 11.2 Angola (Green-crowned) Greenbul Phyllastrephus viridiceps White-throated Greenbul Phyllastrephus albigularis Proposed split based on plumage and reported bioacoustic differences (HBW/Birdlife). English name under discussion.
PS 11.2 Sulu Bulbul Hypsipetes haynaldi Yellowish Bulbul Hypsipetes everetti Proposed split based on vocal and plumage differences (Allen 2020; HBW/Birdlife).
PS 11.2 Malagasy Plain Martin Riparia cowani Brown-throated Martin Riparia paludicola Proposed split based on morphometrics, some plumage differences and reported differences in calls (HBW/Birdlife). English name under discussion.
PS 11.2 Snares Fernbird Poodytes caudatus New Zealand Fernbird Poodytes punctatus Proposed split based on plumage and morphometrics (HBW/Birdlife).
PS 11.2 Huambo Cisticola Cisticola bailunduensis Rock-loving Cisticola Cisticola emini Proposed split based on morphology, strong bioacoustic differences and different habitat (HBW/Birdlife).
PS 11.2 Sulu Tit-Babbler Macronus kettlewelli Brown Tit-Babbler Macronus striaticeps Proposed split from based on major plumage and iris color differences (Allen 2020).
PS 11.2 Horsfield's Thrush Zoothera horsfieldi Scaly Thrush Zoothera dauma Proposed split based on vocal, plumage and morphometric traits (Eaton et al. 2016). Apparently closer phylogenetically to Z. aurea than to Z. dauma (Fjeldså et al. 2020).
PS 11.2 Western (White-winged) Magpie-Robin Copsychus pica Madagascan Magpie-Robin Copsychus albospecularis Proposed split based on morphometrics, bioacoustics, differences in plumage and display, and parapatric distribution (HBW/Birdlfe). English name under discussion.
AS 11.2 Visayan Shama Copsychus superciliaris White-browed Shama Copsychus luzoniensis Accepted split based on genetic and plumage differences (Lim et al. 2010; Collar 2011b; Sánchez-González et al. 2015, HBW/BLI, Allen 2020).
PS 11.2 Volcano Sunbird Cinnyris preussi Rift (Northern Double-collared) Sunbird Cinnyris reichenowi Proposed split based on genetic, morphological, and ecological divergence (Cooper et al. 2021).
  AS 11.2 Arabian Sunbird Cinnyris hellmayri Shining Sunbird Cinnyri habessinicus Arabian Sunbird Cinnyris hellmayri (including kinneari) is split from Shining Sunbird C. habessinicus on the basis of distinctive male and female plumages, larger size, and reportedly different vocalizations (Shirihai & Svensson 2018; HBW/Birdlife).
PS 11.2 Black-breasted Sunbird Cinnyris idenburgi Olive-backed Sunbird Cinnyris jugularis Proposed split based on plumage and morphometric differences (Gregory 2017; HBW/Birdlife).
PS 11.2 Grand Comoro Sunbird, Moheli Sunbird Cinnyris moebii, Cinnyris voeltzkowi  Madagascar (Malagasy) Sunbird Cinnyris notatus Proposed splits on the basis of differences in morphology and genetic divergence (Warren et al. 2003; HBW/Birdlife).
PS 11.2 Upemba Masked Weaver Ploceus upembae Katanga Masked Weaver Ploceus katangae Proposed split based on differences in plumage and preliminary genetic data (Craig et al. 2011; HBW/Birdlife).
PS 11.2 Chestnut-and-black Weaver Ploceus castaneofuscus Vieillot's Black Weaver Ploceus nigerrimus Proposed split based on marked differences in plumage and reported differences in breeding behavior (Crook 1963; HBW/Birdlife).
PS 11.2 Grand Comoro Fody Foudia consobrina Red-headed (Comoros) Fody Foudia eminentissima Foudia consobrina is a proposed split from F. eminentissima based on differences in plumage, evidently some vocal differences, and sister relationship with other Comoros taxa (Warren et al. 2011; Safford & Hawkins 2013; HBW/Birdlife; de Silva et al. 2019).
PS 11.2 Malayan Bullfinch Pyrrhula waterstradti Brown Bullfinch Pyrrhula nipalensis Proposed split based on differences in plumage and call (Puan et al. 2020; HBW/Birdlife)
  Done    
       
PS 11.2 Parana Chachalaca Ortalis remota Speckled Chachalaca Ortalis guttata Recently proposed as a distinct species (Silveira et al. 2017; SACC 902). Did not pass SACC.
  AS 11.2 Kai Coucal Centropus spilopterus Pheasant Coucal Centropus phasianinus Kai Coucal Centropus spilopterus is relisted as a proposed split from Pheasant Coucal C. phasianinus based on its distinctive plumage and allopatric distribution (Eaton et al. 2021; HBW/Birdlife)
  NEW 10.1

Reposted

Whistling Long-tailed Cuckoo Cercococcyx lemaireae Dusky Long-tailed Cuckoo C. mechowi Morphologically 'identical' western populations proposed (10.1) to be recognized as a new species Cercococcyx lemaireae based on song and call differences from C. mechowi (first noted by Dowsett-Lemaire 1997) (Boesman & Collar 2019). Apparent narrow hybrid zone in Bakossi Mountains, Cameroon.
  AS 11.2 Philippine Collared Dove Streptopelia dusumieri Sunda (Island) Collared Dove Streptopelia bitorquata Accepted split based on vocal and plumage differences (Collar 2011b; Eaton et al. 2016; Allen 2020; HBW/Birdlife).
  AS 11.2 Burmese Collared Dove Streptopelia xanthocycla Eurasian Collared Dove Streptopelia decaocto Accepted split based on plumage, unique eye-ring color, song, and geographical isolation (HBW/Birdlife).
PS 11.2 Western Spotted Dove Spilopelia suratensis Eastern Spotted Dove Spilopelia chinensis Western Spotted Dove (including ssp ceylonensis) is a proposed split based on differences in plumage, soft-part colors and vocalizations (Rasmussen & Anderton 2012; HBW/Birdlife).
  AS 11.2 Raiatea Fruit Dove Ptilinopus chrysogaster Grey-green Fruit Dove Ptilinopus purpuratus Accepted split based on plumage differences and molecular data (Cibois et al. 2014; Thibault & Cibois 2017; HBW/Birdlife).
  AS 11.2 Geelvink Fruit-dove Ptilinopus speciosus Yellow-bibbed Fruit Dove Ptilinopus solomonensis Accepted split based on plumage and vocal differences (Gregory 2017; HBW/Birdlife).
  AS 11.2 Malabar Imperial Pigeon Ducula cuprea Mountain Imperial Pigeon Ducula badia Accepted split based on differences in morphology and voice (HBW/Birdlife; Niranjana & Praveen 2021).
  AS 11.2 Geelvink Imperial Pigeon Ducula geelvinkiana Spice Imperial Pigeon Ducula myristicivora Accepted split based on vocal, morphological and plumage differences (Beehler & Pratt 2016; Gregory 2017; HBW/Birdlife).
  AS 11.2 Ryukyu Green Pigeon Treron permagnus Taiwan Green Pigeon Treron formosae Accepted split of Ryukyu Green Pigeon (including ssp medioximus) from Taiwan (Whistling) Green Pigeon (including ssp filipinus) based on morphological and vocal differences (Brazil 2009; HBW/Birdlife).
PS 11.2 Eastern Bronze Ground Dove Pampusana johannae (Western) Bronze Ground Dove Pampusana beccarii Proposed split based on differences in vocalizations, plumage, elevation. and habitat (Gregory 2017; HBW/Birdlife).
  AS 11.2 New Caledonian Buttonquail Turnix novaecaledoniae Painted Buttonquail Turnix varius Accepted split following HBW/Birdlife.
PS 11.2 African Woolly-necked Stork Ciconia microscelis Asian Woolly-necked Stork Ciconia episcopus Proposed split of Ciconia microscelis from C. episcopus (including neglecta) based on pronounced plumage differences (Eaton et al. 2021; HBW/Birdlife).
  AS 11.2 Banggai Scops Owl Otus mendeni Sulawesi Scops Owl Otus manadensis Accepted split based on vocalizations (Eaton et al. 2016, 2021; HBW/Birdlife).
  AS 11,2 Guadalcanal Owl, Malaita Owl, Makira Owl Athene granti, Athene malaitae, Athene roseoaxillaris West Solomons Owl Athene jacquinoti Accepted splits based on plumage and bioacoustic differences (Dutson 2011; HBW/Birdlife).
  AS 11.2 Ethiopian Bee-eater Merops lafresnayii Blue-breasted Bee-eater Merops variegatus Merops lafresnayii is an accepted split from M. variegatus based on morphological and vocal differences. Differs from the similarly sized M. oreobates by its different plumage and voice (Redman et al. 2016; Fry et al. 2020; HBW/Birdlife).
  AS 11.2 African Green Bee-eater, Arabian Green Bee-eater Merops viridissimus, Merops cyanophrys Asian Green Bee-eater Merops orientalis Merops viridissimus (including ssp flavoviridis and cleopatra) and Merops cyanophrys (including ssp muscatensis) are accepted splits from Merops orientalis based on significant differences in morphology and voice (Fry et al. 2020; HBW/Birdlife).
  AS  11.2 Sumatran Woodpecker Picus dedemi Grey-headed Woodpecker Picus canus Accepted split based on significant differences in plumage and voice (Eaton et al. 2021; HBW/Birdlife).
  AS 11.2 Southern Sooty Woodpecker Mulleripicus fuliginosus Northern Sooty Woodpecker Mulleripicus funebris Accepted split from M. funebris (including mayri and parkesi) on the basis of structural and plumage differences and possible vocal differences (Collar 2011b; Allen 2020; HBW/Birdlife, Clements).
  NEW 10.1

Reposted

Western Yellow-spotted Barbet Buccanodon dowsetti (Eastern) Yellow-spotted Barbet B. duchaillui Morphologically 'identical' western populations proposed (10.1) to be recognized as Buccanodon dowsetti sp. nov. based on very different vocals (first noted by Borrow & Demey 2001) (Boesman & Collar 2019). Replaces B. duchaillui west of Dahomey Gap.
  AS 11.2 Usambiro Barbet Trachyphonus usambiro D'Arnaud's Barbet Trachyphonus darnaudii Accepted split based on plumage and vocal differences (Sibley & Monroe 1990; Stevenson & Fanshaw 2002; HBW/Birdlife).
  AS 11.2 Comoros Black Parrot Coracopsis sibilans Lesser Vasa Parrot Coracopsis nigra Accepted split based on genetic divergence and significant vocal and size difference (Kundu et al. 2012; HBW/Birdlife).
  AS 11.2 Simeulue Parrot Psittinus abbotti Blue-rumped Parrot Psittinus cyanurus Accepted split based on substantial structural and plumage differences (Eaton et al. 2016; HBW/Birdlife).
PS 11.2 Snow Mountain Tiger Parrot Psittacella lorentzi Painted Tiger Parrot Psittacella picta Proposed split based on differences in plumage (Gregory 2017; HBW/Birdlife).
PS 11.2 Caatinga Antshrike Thamnophilus capistratus Barred Antshrike Thamnophilus doliatus Proposed split based on bioacoustic, morphological and phylogenetic differences and reported sympatry/parapatry (SACC 890).
  AS 11.2 Perija Antpitta, Sierra Nevada Antpitta, Muisca Antpitta, Cajamarca Antpitta, Junin Antpitta, Urubamba Antpitta, Bolivian Antpitta Grallaria saltuensis, G. spatiator. G. rufula, G. cajamarcae, G. obscura, G. occabambae, G. cochabambae Rufous Antpitta Grallaria rufula Accepted split of currently recognized subspecies to full species based on phylogenetic, vocal and, where pertinent, morphological differences (Chesser et al. 2020; Isler et al. 2020; SACC 883). English name of G. spatiator is provisional.
  AS 11.2 Equatorial Antpitta Grallaria saturata Rufous Antpitta Grallaria rufula Accepted split of resurrected subspecies to full species based on phylogenetic and vocal differences (Chesser et al. 2020; Isler et al. 2020; SACC 883).
  AS 11.2 Chami Antpitta, Chachapoya Antpitta, Panao Antpitta, Oxapampa Antpitta, Ayacucho Antpitta, Puno Antpitta Grallaria alvarezi, Grallaria gravesi, Grallaria oneilli, Grallaria centralis, Grallaria ayacuchensis, Grallaria sinaensis Rufous Antpitta Grallaria rufula Accepted new species within the Rufous Antpitta complex based on phylogenetic, vocal and, where pertinent, morphological differences (Chesser et al. 2020; Isler et al. 2020; SACC 883). English names of G. gravesi and G. oneilli are provisional.
  AS 11.2 Biak Myzomela Myzomela rubrobrunnea Dusky Myzomela Myzomela obscura Biak Myzomela Myzomela rubrobrunnea is split from Dusky Myzomela M. obscura based on morphological differences (Gregory 2017; HBW/Birdlife).
  AS 11.2 Moluccan Myzomela, Red-tinged Myzomela Myzomela simplex, Myzomela rubrotincta Dusky Myzomela Myzomela obscura Moluccan Myzomela Myzomela simplex (including ssp. mortyana) and Red-tinged Myzomela Myzomela rubrotincta are splits from Myzomela obscura based on differences in plumage, size and DNA (Eaton et al. 2016, 2021; HBW/Birdlife).
  AS 11.2 Reddish Myzomela Myzomela erythrina  Red Myzomela Myzomela cruentata Reddish Myzomela Myzomela erythrina (including lavongai, cantans, vinacea) is split from Red Myzomela based on differences in morphology, plumage and elevation (Gregory 2017; HBW/Birdlife).
  AS 11.2 Long-billed Myzomela Myzomela longirostris Red-collared Myzomela Myzomela rosenbergii Accepted split based on morphometric differences and distinctive female plumage (Beehler & Pratt 2016; Gregory 2017; HBW/Birdlife).
  AS 11.2 Rennell Gerygone Gerygone citrina Fan-tailed Gerygone Gerygone flavolateralis Accepted split based on differences in plumage and eye color, and biogeography (Dutson 2011; HBW/Birdlife).
  NEW 11.2 Satin Berrypecker Melanocharis citreola Streaked Berrypecker Melanocharis striativentris Newly described species based on plumage and phylogenetic analysis (Milá et al. 2021).
  AS 11.2 Spotted Berrypecker Rhamphocharis piperata Thick-billed (formerly Spotted) Berrypecker Rhamphocharis crassirostris Rhamphocharis piperata is split from R. crassirostris based on morphological differences (Beehler & Pratt 2016; Gregory 2017; HBW/Birdlife). English name Spotted Berrypecker is assigned to the split species to reflect its female plumage.
  AS 11.2 Western Crested Berrypecker Paramythia olivacea Eastern Crested Berrypecker Paramythia montium Accepted split based on morphological differences (Beehler & Pratt 2016; Gregory 2017; HBW/Birdlife).
  AS 11.2 West African Batis Batis occulta Fernando Po Batis Batis poensis Accepted split based on differences in plumage and size (Sinclair & Ryan 2003; Clements; HBW/Birdlife).
PS 11.2 Comoros Blue Vanga Cyanolanius comorensis (Madagascar) Blue Vanga Cyanolanius madagascarinus Comoros Blue Vanaga Cyanolanius comorensis (including bensoni) is a proposed split from Madagascar Blue Vanga C. madagascarinus based on morphological, plumage and vocal differences (Safford & Hawkins 2013; HBW/Birdlife).
  AS 11.2 Biak Triller Lalage leucoptera Black-browed Triller Lalage atrovirens Accepted split based on differences in plumage and voice (Beehler & Pratt 2016; Gregory 2017; HBW/Birdlife).
  AS 11.2 Giant Grey Shrike Lanius giganteus Chinese Grey Shrike Lanius sphenocercus Accepted split on the basis of strong morphological divergence including where ranges approach; habitat differences; and genetic divergence (Svensson et al. 2009; Olsson et al. 2010; Panov et al. 2011; Dickinson & Christidis 2014).
  AS 11.2 Biak Fantail Rhipidura kordensis Northern Fantail Rhipidura rufiventris Accepted split on the basis of vocal and plumage differences (Gregory 2017; HBW/Birdlife).
  AS 11.2 Tanimbar Monarch Carterornis castus White-naped Monarch Carterornis pileatus Accepted split based on structural, plumage and bioacoustic differences (King 1997; Eaton et al. 2016; HBW/Birdlife; Clements). The English name Tanimbar Monarch is prefered over Loetoe Monarch following HBW/Birdlife and Eaton et al. (2016).
  AS 11.2 Mussau Flycatcher, Velvet Flycatcher, Dyaul Flycatcher Myiagra hebetior, Myiagra eichhorni, Myiagra cervinicolor Velvet Flycatcher Myiagra hebetior Accepted three-way split of Myiagra hebetior based on morphometric differences, strikingly different female plumage. and vocalizations (Gregory 2017; HBW/Birdlife). Note English name Velvet Flycatcher is assigned to Myiagra eichhorni.
  AS 11.2 Wetar Oriole Oriolus finschi Timor (Olive-brown) Oriole Oriolus melanotis Accepted split based on strong genetic divergence and substantial vocal and plumage differences (Eaton et al. 2016; Jønsson et al. 2019; HBW/Birdlife).
  AS 11.2 Arabian Lark Eremalauda eremodites Dunn's Lark Eremalauda dunni Accepted split based on differences in size, small but consistent differences in plumage, and reported deep genetic divergence (Shirihai & Svensson 2018).
  AS 11.2 Sumatran Bulbul Ixos sumatranus Javan (Sunda) Bulbul Ixos virescens Accepted split based on plumage and vocal differences (Eaton et al. 2016).
  AS 11.2 Camiguin Bulbul Hypsipetes catarmanensis Yellowish Bulbul Hypsipetes everetti Accepted split based on vocal and plumage differences (Allen 2020; HBW/Birdlife).
  AS 11.2 Siberian House Martin Delichon lagopodum Common House Martin Delichon urbicum
Accepted split based on morphological and vocal differences and syntopic nesting (Leader et al. 2021).
  AS 11.2 Tenggara Paradise Flycatcher Terpsiphone floris Blyth's Paradise Flycatcher Terpsiphone affinis Accepted split based on bioacoustic, morphological and phylogenetic data. Includes ssp. sumbaensis (Eaton et al. 2016; Fabre et al. 2012).
  AS 11.2 Bornean Black Magpie Platysmurus aterrimus Malayan Black Magpie Platysmurus leucopterus Accepted split based on substantial plumage and vocal differences (Eaton et al. 2016; BLI/HBW).
  AS  11.2 Small Crow Corvus samarensis Slender-billed Crow Corvus enca Accepted split based on significant vocal differences and morphology. Includes ssp. sierramadrensis (see Allen 2020).
  AS 11.2 Palawan Crow Corvus pusillus Slender-billed Crow Corvus enca Accepted split based on plumage, bill morphology and major vocal differences (Allen 2020).
  AS 11.2 Obi Paradise-crow Lycocorax obiensis Halmahera Paradise-crow Lycocorax pyrrhopterus Accepted split based on pronounced vocal and plumage differences (Eaton et al. 2016; HBW/Birdlife).
  AS 11.2 Black-capped Robin Heteromyias armiti  Ashy Robin Heteromyias albispecularis Black-capped Robin Heteromyias armiti (including rothschildi) is split from H. albispecularis based on differences in genetics, plumage and vocalizations (Christidis et al. 2011; Beehler & Pratt 2016; Gregory 2017; HBW/Birdlife).
PS 11.2 Ishigaki Tit Parus nigriloris Japanese Tit Parus minor Proposed split based on striking differences in plumage and evidently in vocalizations (Brazil 2018).
AL 11.2 Alpine Leaf Warbler Phylloscopus occisinensis Tickell's Leaf Warbler Phylloscopus affinis Accepted lump based on bioacoustic, morphological and phylogenetic data. Treat as a subspecies (Zhang et al. 2019).
  AS 11.2 Lompobattang Leaf Warbler Phylloscopus sarasinorum Sulawesi Leaf Warbler Phylloscopus nesophilus Accepted split based on bioacoustic and morphological differences. Note that new English name follows the more range-restricted taxon which retains the scientific name of the formerly combined species. The more widespread form, P. nesophilus, retains the English name of "Sulawesi Leaf Warbler" (Berryman & Eaton 2020).
  NEW 11.2 Kilombero Cisticola Cisticola bakerorum   Newly described species based on phylogenetics, morphology, and distinctive vocalizations (Fjeldså et al. 2020).
  NEW 11.2 White-tailed Cisticola Cisticola anderseni   Newly described species based on phylogenetics, morphology, and distinctive vocalizations (Fjeldså et al. 2020).
  AS 11.2 Delicate Prinia Prinia lepida Graceful Prinia Prinia gracilis Split of Prinia lepida (including akyildizi, irakensis, carpenteri, lepida, and stevensi) from P. gracilis is based on differences in morphometrics, plumage, and vocalizations, and mtDNA divergence (Alström et al. 2021).
  AS 11.2 Brown-tailed Apalis Apalis flavocincta Yellow-breasted Apalis Apalis flavida Brown-tailed Apalis Apalis flavocincta (including viridiceps) is split from A. flavida based on habitat, plumage and vocal differences (Sibley & Monroe 1990; HBW/Birdlife; Borrow pers. comm.; Redman pers. comm.).
PS 11.2 Yunnan Parrotbill Sinosuthora ricketti Brown-winged Parrotbill Sinosuthora brunnea Proposed split based on DNA analysis, morphology and difference in calls (Deignan 1964; Robson 2007; Penhallurick & Robson 2009; Yeung et al. 2011; HBW/Birdlife). However, status of the little-studied nominate ssp. S. b. brunnea, which has some morphological features shared with ricketti, means further analysis of the Brown-winged Parrotbill complex is required (Eaton, pers. comm.).
  AS 11.2 Grey-hooded Babbler Cyanoderma bicolor Chestnut-winged Babbler Cyanoderma erythropterum Accepted split based on plumage, bioacoustics and phylogenetic divergence (Eaton et al. 2016; HBW/Birdlife; Cros et al. 2020). Includes rufum.
  AS 11.2 Visayan Babbler Sterrhoptilus affinis Black-crowned (Calabarzon) Babbler Sterrhoptilus nigrocapitatus Accepted split based on substantial phylogenetic divergence and paraphyly, as well as consistent plumage differences (Hosner et al. 2018).
  AS 11.2 Sunda Scimitar Babbler Pomatorhinus bornensis Javan (Chestnut-backed) Scimitar Babbler Pomatorhinus montanus Accepted split based on substantial vocal differences and fairly distinct plumage (Eaton et al. 2016).
  AS 11.2 Malayan Black-capped Babbler, Bornean Black-capped Babbler Pellorneum nigrocapitatum, Pellorneum capistratoides Javan Black-capped Babbler Pellorneum capistratum Accepted split of P. nigrocapitatum and P. capistratoides (including morrelli) from P. capistratum on the basis of pronounced vocal, plumage and genome-wide differences (Puan et al. 2020; Eaton et al. 2021, HBW/Birdlife).
  AS 11.2 Green-fronted White-eye Zosterops minor Black-fronted White-eye Zosterops chrysolaemus Accepted split based on distinct morphological differences (Beehler & Pratt 2016; Gregory 2017). Includes rothschildi as a subspecies. Note that the species epithet "minor" follows the split form, while the name "chrysolaemus" is assigned to the form retaining the original English name.
  AS 11.2 Oya Tabu White-eye Zosterops crookshanki Capped White-eye Zosterops fuscicapilla Accepted split based on morphological and vocal differences (Beehler & Pratt 2016; Gregory 2017).
  AS 11.2 Bougainville White-eye Zosterops hamlini Grey-throated White-eye Zosterops rendovae Accepted split based on phylogenetic divergence and morphological differences (Moyle et al. 2009; Gregory 2017).
  AS 11.2 Guadalcanal White-eye Zosterops oblitus Grey-throated White-eye Zosterops rendovae Accepted split based on deep phylogenetic divergence (Manthey et al. 2020).
  AS 11.2 Palawan Fairy-bluebird Irena tweeddalii Asian Fairy-bluebird Irena puella Accepted split based on phylogenetic divergence and morphometric and plumage differences (HBW/BLI; Moltesen et al. 2012; Allen 2020).
PS 11.2 Visayan Fairy-bluebird, Mindanao Fairy-bluebird Irena ellae, Irena melanochlamys Luzon (Philippine) Fairy-bluebird Irena cyanogastra Proposed splits based on phylogenetic divergence and differences in plumage (Moltesen et al. 2012; Hosner et al. 2018).
  AS 11.2 Siamese Pied Myna, Javan Pied Myna Gracupica floweri, Gracupica jalla (Indian) Pied Myna Gracupica contra Accepted splits based on genetic divergence and morphological features. G. floweri and G. jalla are monotypic. G. contra includes superciliaris as a subspecies and sordida synonymized with the nominate (Baveja et al. 2020).
  AS 11.2 Visayan Rhabdornis Rhabdornis rabori Stripe-breasted Rhabdornis Rhabdornis inornatus Accepted split based on plumage and structural differences (Collar 2011b; Allen 2020; HBW/Birdlife; Clements).
  AS 11.2 Tanzanian Illadopsis Illadopsis distans Pale-breasted Illadopsis Illadopsis rufipennis Split Illadopsis distans from I. rufipennis based on morphological and bioacoustic differences (Zimmerman et al. 1996; Sinclair & Ryan 2003; Nguembock et al. 2009; HBW/Birdlife).
  AS 11.2 Dayak Blue Flycatcher Cyornis montanus Javan Blue Flycatcher Cyornis banyumas Accepted split based on vocal, plumage and morphometric traits (Eaton et al. 2016; Gwee et al. 2019).
  AS 11.2 Sumba Jungle Flycatcher Cyornis stresemanni Flores (Russet-backed) Jungle Flycatcher Cyornis oscillans Accepted split based on plumage, structural and vocal differences (Eaton et al. 2016, 2021; HBW/Birdlife).
  AS 11.2 Crocker Jungle Flycatcher Cyornis ruficrissa Rufous-tailed Jungle Flycatcher Cyornis ruficauda Accepted split based on bioacoustic differences. Includes ssp. isola (Gwee et al. 2019; Eaton et al. 2016).
  AS 11.2 Sulu Jungle-flycatcher Cyornis ocularis Rufous-tailed Jungle Flycatcher Cyornis ruficauda Accepted split based on vocalizations and distinctive eye-ring color (Gwee et al. 2019; Allen 2020).
  AS 11.2 Chinese Vivid Niltava Niltava oatesi Taiwan Vivid Niltava Niltava vivida Accepted split based on morphometric, plumage, and bioacoustic differences (Rasmussen & Anderton 2005; HBW/Birdlife). English names tentative.
  AS 11.2 Short-tailed Akalat Sheppardia poensis Bocage's Akalat Sheppardia bocagei Sheppardia poensis (including ssp granti, kungwensis, kaboboensis, and schoutedeni) is split from Sheppardia bocagei based on significant bioacoustic, morphological, and habitat differences (Prigogine 1987; Borrow & Demey 2001; HBW/Birdlife).
  AS 11.2 Okinawa Robin Larvivora namiyei Ryukyu Robin Larvivora komadori Accepted split based on deep genetic divergence coupled with bioacoustic and morphological differences (Saitoh et al. 2015; Brazil 2018; HBW/Birdlife).
PS 11.2 Izu Robin Larvivora tanensis Japanese Robin Larvivora akahige Proposed split based on morphological, bioacoustic and habitat differences (Brazil 2018; HBW/Birdlife).
  AS 11.2 Ryukyu Flycatcher Ficedula owstoni Narcissus Flycatcher Ficedula narcissina Accepted split based on genetic and bioacoustic differences (Leader et al. 2013; Dong et al. 2015; Saitoh et al. 2015; Brazil 2018; HBW/Birdlife). Treat as monotypic following Ornithological Society of Japan (2000). Includes ssp. shonis and jakuschima.
  AS 11.2 Atlas Wheatear Oenanthe seebohmi Northern Wheatear Oenanthe oenanthe Split based on striking differences in plumage and some bioacoustic differences (Shirihai & Svensson 2018; HBW/Birdlife).
PS 11.2 Rusty-breasted Wheatear Oenanthe frenata Buff-breasted (Red-breasted) Wheatear Oenanthe bottae Proposed split based on morphological differences (HBW/Birdlife).
  AS 11.2 Maghreb Wheatear Oenanthe halophila Mourning Wheatear Oenanthe lugens Accepted split based on differences in degree of sexual dimorphism, song, and habitat (Shirihai & Svensson 2018).
  AS 11.2 Basalt Wheatear Oenanthe warriae Mourning Wheatear Oenanthe lugens Accepted split based on unique habitat, apparent lack of mixing, and distinctive plumage (Shirihai & Svensson 2018).
  AS 11.2 Javan Leafbird Chloropsis cochinchinensis Blue-winged Leafbird Chloropsis moluccensis Accepted split of Chloropsis cochinchinensis of Java and the widespread Blue-winged Leafbird C. moluccensis based on differences in plumage and deep mtDNA divergence (Moltesen et al. 2012; HBW/BLI; Eaton et al. 2016). Note change of scientific name of Blue-winged Leafbird with the split.
  AS 11.2 Greyish-crowned Leafbird Chloropsis lazulina Orange-bellied Leafbird Chloropsis hardwickii Accepted split based on phylogenetic divergence and plumage differences. Includes ssp. melliana (HBW/BLI; Moltesen et al. 2012)
  AS 11.2 Flame-crowned Flowerpecker Dicaeum kampalili Yellow-crowned Flowerpecker Dicaeum anthonyi Accepted split based on plumage differences (HBW/BLI; Allen 2020). Note change of English name of D. anthonyi with the split.
PS 11.2 Northern Buzzing (Obscure) Flowerpecker Dicaeum obscurum Southern Buzzing (White-bellied) Flowerpecker Dicaeum hypoleucum Proposed split based on phylogenetic divergence, major differences in plumage, and differences in calls (Hosner et al. 2018; Allen 2020). English names under discussion.
  PS 11.2 Yellow-chinned Sunbird Anthreptes tephrolaemus Grey-chinned Sunbird Anthreptes rectirostris Split based on differences in plumage and very different calls (HBW/Birdlife, Borrow in litt.).
  AS 11.2 Stripe-breasted Seedeater Crithagra striatipectus Reichard's Seedeater Crithagra reichardi Accepted split based on consistent differences in plumage (Turner 2013, Turner & Pearson 2015; Dickinson & Christidis 2014; Redman pers. comm., HBW/Birdlife).
  AS 11.2 Mindanao Serin Chrysocorythus mindanensis Indonesian (Mountain) Serin Chrysocorythus estherae Accepted split based on significant plumage and structural differences (HBW/Birdlife; Eaton et al 2016; Allen 2020).
  AS 11.2 Cinnamon-bellied Saltator, Olivaceous Saltator Saltator grandis, Saltator olivascens Blue-grey (Greyish) Saltator Saltator coerulescens Accepted splits based on vocal and genetic differences (Chaves et al. 2013; SACC 879). S. grandis includes ssp. vigorsii, plumbiceps, yucatanensis, hesperis and brevicaudus. S. olivascens includes ssp. plumbeus and brewsteri. English names tentative pending SACC.
  AS 11.1 Yungas Guan Penelope bridgesi Dusky-legged Guan  Penelope obscura
Split based on strong allopatry and biometric differences (Evangelista-Vargas & Silveira 2018; SACC 875).
PS 11.1 Yunnan Pheasant Phasianus elegans
Turkestan (Common) Pheasant Phasianus colchicus Proposed split based primarily on mtDNA divergence (Liu et al. 2020). Monotypic.
PS 11.1 Chinese Pheasant Phasianus torquatus
Turkestan (Common) Pheasant Phasianus colchicus Proposed split based primarily on mtDNA divergence (Liu et al. 2020). Polytypic. Includes torquatus, strauchi–vlangallii and formosanus groups.
AL 11.1 Vaurie's Nightjar Caprimulgus centralasicus European Nightjar Caprimulgus europaeus Taxonomic status unclear. Known only from a single specimen. Recent mtDNA studies suggest that it may be synonymous with European Nightjar C. e. plumipes (Schweizer et al. 2020; Kirwan & Schweizer 2020).
AL 11.1 Mato Grosso Swift Chaetura viridipennis Chapman's Swift C. chapmani Restoration of Mato Grosso Swift to a subspecies of Chapman's Swift is based on genetic revision of genus Chaetura (Chesser et al. 2018, SACC 841).
  AS 11.1 Ashy-tailed Swift Chaetura andrei Vaux's Swift C. vauxi Accepted split of Ashy-tailed Swift from Vaux's Swift is based on genetic revision of genus Chaetura (Chesser et al. 2018, SACC 841)
  AS 11.1 Diamantina Sabrewing Campylopterus diamantinensis
Grey-breasted Sabrewing Campylopterus largipennis Accepted split from C. largipennis based on Lopes et al. (2017); SACC 755. English name adopted from SACC 859.
PS 11.1
"Northern" Silvery Grebe Podiceps juninensis "Southern" Silvery Grebe Podiceps occipitalis
Proposed split based on morphology, non-migratory behavior, lack of distinct breeding plumage, and higher-pitched voice. English names provisional (SACC 864).
  AS 11.1 Magellanic Snipe Gallinago magellanica
South American Snipe Gallinago paraguaiae Accepted split based on vocalizations and displays (Miller et al. 2019; SACC 843). English names provisional.
PS 11.1 Galapagos Frigatebird Fregata magnificens Magnificent Frigatebird Fregata rothschildi Proposed split based on strong genetic differentiation between the isolated Galapagos population, F. magnificens and the widespread taxon, F. rothschildi (Hailer et al. 2011; SACC 872).
  AS 11.1 Annobon Scops Owl Otus feae
African Scops Owl Otus senegalensis Split based on morphological and vocal differences (Collar & Boesman 2020).
  AS 11.1 Arabian Eagle-Owl Bubo milesi
Spotted Eagle-Owl Bubo africanus Accepted split based on morphological and acoustic differences (Collar & Boesman 2019).
PS 11.1 Northern Olive Woodpecker Dendropicos ruwenzori Southern Olive Woodpecker Dendropicos griseocephalus Proposed split based on molecular species delimitation methods and estimates of gene flow. D. ruwenzori includes subspecies kilimensis (Fuchs et al. 2020).
AL 11.1 Northern Crested Caracara Caracara cheriway (Southern) Crested Caracara Caracara plancus Accepted lump based on short genetic distance and indiscriminately mixed plumage characters in their area of overlap (SACC 878).
  AS 11.1 Ornate Pitta Pitta concinna
Elegant Pitta Pitta elegans
Split based on bioacoustic and plumage differences. Parent species, P. elegans, retains its original English name (Yue et al. 2020).
  AS 11.1 Banda Sea Pitta Pitta vigorsii
Elegant Pitta Pitta elegans
Split based on bioacoustic and plumage differences (Yue et al. 2020).
PL 11.1 Scalloped Woodcreeper Lepidocolaptes falcinellus Scaled Woodcreeper Lepidocolaptes squamatus Proposed lump based on minor plumage differences,  vocal (call) similarities, and lack of genetic data (SACC 881).
AL 11.1 Layard's Woodcreeper Lepidocolaptes layardi Rondonia Woodcreeper Lepidocolaptes fuscicapillus Accepted lump based on lack of significant vocal and genetic differences. English name of the fused species ultimately to be determined but treat as Rondonia Woodcreeper for now (SACC 868).
  AS 11.1 Chinchipe Spinetail Synallaxis chinchipensis
Necklaced Spinetail Synallaxis stictothorax Accepted split based on morphological and vocal distinctions (Stopiglia et al. 2020; SACC 882).
  AS 11.1 Northern Rufous-winged Antwren Herpsilochmus frater Southern Rufous-winged Antwren Herpsilochmus rufimarginatus Split based on significant vocal differences and some phenotypic differences. English names tentative. H. frater includes exiguus as a subspecies (Boesman 2016; SACC 870).
  AS 11.1 Utcubamba Tapaculo Scytalopus intermedius
Blackish Tapaculo Scytalopus latrans
Accepted split from Blackish Tapaculo to which it is only distantly related. More closely related to Large-footed Tapaculo, S. macropus (Cadena et al. 2020; SACC 858).
  AS 11.1 Turkestan Short-toed Lark Alaudala heinei Lesser (Mediterranean) Short-toed Lark Alaudala rufescens Split based on phylogenetic divergence (Alström et al. 2020). Includes aharonii, pseudobaetica and persica.
  AS 11.1 Rufous Limestone Babbler Gypsophila calcicola Limestone Wren-Babbler (Variable Limestone Babbler) Gypsophila crispifrons Split based on molecular phylogeny and bioacoustic differences (Gwee et al. 2020).
  AS 11.1 Annam Limestone  Babbler Gypsophila annamensis Limestone Wren-Babbler (Variable Limestone Babbler) Gypsophila crispifrons Split based on molecular phylogeny and bioacoustic differences (Gwee et al. 2020).
PS 11.1 "Coal-black" Thrush Turdus anthracinus Chiguanco Thrush Turdus chiguanco Proposed split based on genetic and morphological differences (SACC 871).
  AS 11.1 Taiwan Bullfinch Pyrrhula owstoni
Grey-headed Bullfinch Pyrrhula erythaca Accepted split based on phylogenetic, morphological and vocal differences (Dong et al. 2020).
  AS 11.1 Bonin Greenfinch Chloris kittlitzi Grey-capped Greenfinch Chloris sinica Accepted split based on deep genetic divergence and morphological differences (Saitoh et al. 2015; Saitoh et al. 2020).
  AS 11.1 Yungas Sparrow Rhynchospiza dabbenei Stripe-capped (Chaco) Sparrow Rhynchospiza strigiceps Accepted split based on morphological, genetic, biogeographical and vocal evidence (Areta et al. 2019; SACC 842)
  AS 11.1 Moss-backed Sparrow Arremon dorbignii Saffron-billed Sparrow Arremon flavirostris Accepted split based on morphological, vocal and genetic differences (Buainain et al. 2016; SACC 874).
  PS 10.2 Donaldson-Smith's Turaco Menelikornis (Tauraco) donaldsoni White-cheeked Turaco Menelikornis (Tauraco) leucotis Proposed split based on genetic and phenotypic differences and parapatry/possible syntopy (Perktaş et al. 2020).
  PS 10.2 Eastern Black-billed Turaco Tauraco emini (Western) Black-billed Turaco Tauraco schuettii Proposed split based on polyphyly with phenotypic differences (Perktaş et al. 2020). English names under discussion.
  PS 10.2 Reichenow's Turaco Tauraco reichenowi Livingstone's Turaco Tauraco livingstonii Proposed split based on polyphyly with phenotypic differences (Perktaş et al. 2020).
  NEW 11.1
White-winged Tapaculo Scytalopus krabbei sp. nov.   New species: Krabbe, Schulenberg, Hosner, et al., 2020 (SACC 852).
  NEW 11.1 Jalca Tapaculo Scytalopus frankeae sp. nov.   New species: Krabbe, Schulenberg, Hosner, et al., 2020 (SACC 853).
  NEW 11.1 Ampay Tapaculo Scytalopus whitneyi sp. nov.   New species: Krabbe, Schulenberg, Hosner, et al., 2020 (SACC 854).
  AS 11.1
Loja Tapaculo Scytalopus androstictus
Paramo Tapaculo Scytalopus opacus Accepted split based on different calls and differences in mtDNA (SACC 855).
PS 10.2 Saharan Scrub Warbler Scotocerca saharae 'Streaked' Scrub Warbler Scotocerca inquieta Proposed split of allopatric Scrub Warbler populations, which differ genetically (11,5 cytb mt-DNA), by  song, and morphology (Shirihai & Svensson 2018; Handbook Western Palaearctic birds). S. saharae would include ssp theresae. Recognition pending formally published paper.
  NEW 10.2 Peleng Leaf Warbler Phylloscopus suaramerdu   Proposed new species: Rheindt et al. 2020. Tentatively add as subspecies of P. poliocephalus pending evaluation of revision of the entire species complex.
NEW 10.2 Taliabu Leaf Warbler Phylloscopus emilsalimi
  Proposed new species: Rheindt et al. 202). Tentatively add as subspecies of P. poliocephalus pending evaluation of revision of the entire species complex.
  AS 11.1
Sumatran Blue Robin Myiomela sumatrana
Sunda Robin (Javan Blue Robin) Myiomela diana
Accepted split (Ng et al. 2020).
  AS 10.2
Malaysian Crested Argus Rheinardia nigrescens (Vietnamese) Crested Argus Rheinardia ocellata Accepted split based on plumage, crest morphology and color, and vocalizations (Davison et al. 2020).
PL 10.2 Canary Islands Oystercatcher Haematopus meadewaldoi Eurasian Oystercatcher Haematopus ostralegus Treat as a distinctive subspecies (Senfeld et al. 2019).
  AS 10.2 White-faced Plover Charadrius dealbatus
Kentish Plover Charadrius alexandrinus Recent phylogenetic studies support treating C. dealbatus as a separate species (Sadanandan et al. 2019; Wang et al. 2019).
PS 10.2
Great White Heron
Ardea occidentalis
Great Blue Heron Ardea herodias Proposed split of white morph subspecies based on analyses of assortative mating (McGuire et al. 2019; NACC 2020-A-10). Declined by NACC.
PS 10.2 Haida Gwaii Saw-whet Owl Aegolius brooksi
Northern Saw-whet Owl Aegolius acadicus Proposed split based on molecular evidence of limited gene flow and phenotypic differences. NACC 2020-B-8. Declined by NACC.
AL 10.2 Tawny Piculet Picumnus fulvescens Ochraceous Piculet Picumnus limae Tentatively treat as a distinctive subspecies. (Lima et al. 2020, SACC 845)
  AS 10.2
Fine-banded Woodpecker Campethera taeniolaema Tullberg's Woodpecker Campethera tullbergi Campethera taeniolaema is split from allopatric Campethera tullbergi based on genetic and plumage differences. Fuchs et al. (2017).
  AS 10.2
Western Fire-eye Pyriglena maura White-backed (East Amazonian) Fire-eye Pyriglena leuconota Split Western Fire-eye from White-backed Fire-eye. (Isler & Maldonado-Coelho 2017; SACC 759).
  AS 10.2
Tapajos Fire-eye Pyriglena similis White-backed (East Amazonian) Fire-eye Pyriglena leuconota Split Tapajos Fire-eye from White-backed Fire-eye. (Isler & Maldonado-Coelho 2017; SACC 759).
PS 10.2 Black-headed Fruiteater Pipreola tallmanorum
Green-and-black Fruiteater Pipreola riefferii Potential split, but not subjected to molecular studies. (Sibley & Monroe 1990; Berv & Prum 2014).
PS 10.2 Venezuelan Fruiteater Pipreola melanolaema
Green-and-black Fruiteater Pipreola riefferii Potential split. Berv & Prum (2014).
  AS 10.2
Opalton Grasswren Amytornis rowleyi Striated Grasswren Amytornis striatus
Accepted split. (Christidis et al. 2013; Black et al. 2020 a, b). English name Opalton Grasswren follows Black et al. (2020 a, b). Assigned the English name Rusty Grasswren by others (Christidis et al. 2013; Dickinson & Christidis 2014).
  AS 10.2
Rufous Grasswren Amytornis whitei Striated Grasswren Amytornis striatus
Accepted split Polytypic. (Black et al. 2020 a, b). English name of this polytypic species follows Black et al. (2020 a, b). Includes whitei, oweni, and newly described parvus and aenigma
  NEW 10.2
Taliabu Myzomela Myzomela wahe   Accepted new species. Rheindt et al. (2020).
AL 10.2 Northwestern Crow Corvus caurinus American Crow Corvus brachyrhynchos Slager et al. 2020; NACC 2020-C-15
  AS 10.2
Palawan Drongo Dicrurus palawanensis Hair-crested Drongo Dicrurus hottentottus Accepted split. Includes ssp. cuyensis. Shakya et al. (2020).
  NEW 10.2
Peleng Fantail Rhipidura habibiei   Accepted as a new species in the Sulawesi Fantail complex as proposed in Rheindt et al. (2020).
  AS 10.2 Solomons Robin Petroica polymorpha
Pacific (Mayr's) Robin Petroica pusilla Solomon Robin is an accepted split from Pacific Robin. Includes polymorpha, septentrionalis, kulambangrae, and dennisi. The remaining subspecies taxa from Vanuatu, Fiji and Samoa, remain in P. pusilla with the revised English name of Mayr's Robin. Kearns et al. (2020).
  AS 10.2
Seram Bush Warbler
Locustella musculus Sulawesi (Chestnut-backed) Bush Warbler Locustella castanea Rheindt et al. (2020).
  NEW 10.2 Taliabu Bush Warbler Locustella portenta   Accepted new species. Rheindt et al. (2020).
  AS 10.2
Western Subalpine Warbler
Curruca iberiae (Eastern) Subalpine Warbler Curruca cantillans Western Subalpine Warbler is split from C. cantillans following Zuccon et al. (2020) and Svensson (2013a,b).
  AS 10.2 Yellow-eyed Bristlebill Bleda ugandae Yellow-lored Bristlebill Bleda notatus Accepted split based on phylogenetic and phenotypic differences Huntley & Voelker (2016).
  AS 10.2 Grey-cheeked Bulbul Alophoixus tephrogenys Brown-cheeked Bulbul vs Melodius Bulbul Alophoixus bres Accepted split based on phylogenetic and phenotypic differences Shakya et al. (2020). Note that English name, Grey-cheeked Bulbul, formerly assigned to A. bres, becomes associated with this, the split species. English name of A. bres to be determined.
  AS 10.2 Penan Bulbul Alophoixus ruficrissus Ochraceous Bulbul Alophoixus ochraceus Accepted split based on phylogenetic and phenotypic differences Shakya et al. (2020). English name to be determined.
  AS 10.2
Pale-faced Bulbul Pycnonotus leucops Flavescent Bulbul Pycnonotus flavescens Accepted split based on phylogenetic and phenotypic differences (Dejtaradol et al. 2016; Eaton et al. 2016).
  PS 10.1 Schuett's Spurfowl Pternistis schuetti Scaly Spurfowl P. squamatus Proposed (10.1) split of Schuett's Spurfowl based on  revision of genus Pternistis (Mandiwana-Neudani et al. 2019). STET SSP pending continuing research. Includes ssp maranensis
  PS 10.1 Cranch's Spurfowl Pternistis cranchi Red-necked Spurfowl P. afer Proposed (10.1) split of Cranch's Spurfowl based on revision of genus Pternistis (Mandiwana-Neudani et al. 2019). Takes into account complex hybridization. STET SSP pending continuing research.
  PL 10.1 Black-fronted Francolin Pternistis atrifrons Chestnut-naped Francolin P. castaneicollis  Black-fronted Francolin was split from Chestnut-naped Francolin P. castaneicollis (Töpfer et al. 2014). Treated as subspecies by Mandiwana-Newdani et al. (2019) absent DNA metric. STET SP pending continuing research
  AL 10.1 Hoogerwerf's Pheasant Lophura hoogerwerfi Salvadori's Pheasant L. inornata Overdue lump of poorly known species originally based on minor differences between females; males indistinguishable (Sözer et al. 2006, HBW, Eaton et al. 2016). Treat as SSP.
  AS 10.1 Hudsonian Whimbrel Numenius hudsonicus (Eurasian) Whimbrel N. phaeopus Genomic phylogeography separates Nearctic whimbrels as a deep monophyletic clade with distinct plumage (Sangster et al. 2011, Tan et al. 2019). Similar vocals need study.
  NEW 10.1 Whistling Long-tailed Cuckoo Cercococcyx lemaireae Dusky Long-tailed Cuckoo C. mechowi Morphologically 'identical' western populations proposed (10.1) to be recognized as a new species Cercococcyx lemaireae based on  song and call differences from C. mechowi (first noted by Dowsett-Lemaire 1997) (Boesman & Collar 2019). Apparent narrow hybrid zone in Bakossi Mountains, Cameroon. Await genetics and playback responses.
  AS 10.1 Maghreb Owl Strix mauritanica Tawny Owl S. aluco Accepted split (10.1) based on morphology, genetics and vocals (Brito 2005, Doña et al. 2015, Robb 2015)
   AS 10.1 Sunda Owlet Glaucidium sylvaticum Collared Owlet G. brodiei Accepted split (10.1) of Sunda Owlet (G. sylvaticum) from Collared Owlet (G. brodiei; Gwee et al. 2019) largely on the basis of the primary song type, which is shared by Sumatran sylvaticum and Bornean borneense but distinctly different from that shared by the widespread continental nominate and Taiwanese pardalotum.
  AS 10.1 Butterfly Coquette Lophornis verreauxii Festive Coquette L. chalybeus Accepted split (10.1) of widespread Amazonian verreauxii from the broadly allopatric E Brazilian chalybeus largely on the basis of different morphology, especially crest length, and vocal differences (del Hoyo and Collar 2014, Donegan et al. 2015, del Hoyo et al. 2019, SACC 833) ENG: Verreaux's Coquette?
  NEW 10.1 Western Yellow-spotted Barbet Buccanodon dowsetti (Eastern) Yellow-spotted Barbet B. duchaillui Morphologically 'identical' western populations proposed (10.1) to be recognized as Buccanodon dowsetti sp. nov. based on very different vocals (first noted by Borrow & Demey 2001)(Boesman & Collar 2019). Replaces B. duchaillui west of Dahomey Gap. Await genetics and playback responses.
  NEW 10.1 Alor Myzomela Myzomela prawiradilagae Crimson-hooded Myzomela M. kuehni New species closely related to M. kuehni, first reported by Trainor et al. (2012a,b) and formally described to science on the basis of a single specimen (Irham et al. 2019). Head color, song and call differ; genetic divergence weak .
  AS 10.1 Cryptic Honeyeater

Microptilotis imitatrix

Graceful Honeyeater M. gracilis Accepted (10.1) split of allopatric imitatrix based on vocal repertoire differences and playback responses supplemented by genetic and morphology differences incl. eye color (Nielsen 2018). ENG
  AS 10.1 Swinhoe's Prinia Prinia striata Himalayan [Striated] Prinia P. crinigera Accepted split (10.1) from Prinia crinigera based on non-sister status, vocal and morphological differences, and previously unrecognized sympatry in Yunnan (Alström et al. 2019). ENG
  AS 10.1 Burmese Prinia Prinia cooki Deignan's [Brown] Prinia P. polychroa Accepted split (10.1) based on genetic, song, and morphological differences (Alström et al. 2019).
  AS 10.1 Annam Prinia Prinia rocki Deignan's [Brown] Prinia P. polychroa Accepted split (10.1) based on genetic, song, and morphological differences (Alström et al. 2019).
  NEW 10.1 Spectacled Flowerpecker Dicaeum dayakorum   Distinctive new species informally documented by sightings and photographs (Edwards et al. 2009, Sykes and Loseby 2015, Boyd et al. 2016) and now described scientifically from the sole known specimen (Saucier et al. 2019). Basal Dicaeum.
   PS 10.1 Flores Flowerpecker Dicaeum rhodopygiale Blood-breasted Flowerpecker D. sanguinolentum  Proposed split of montane Flores endemic taxon from D. sanguinolentum, based on minor plumage and apparent vocal differences (Rheindt and Eaton 2019).
   PS 10.1 Sumba Flowerpecker Dicaeum wilhelminae Blood-breasted Flowerpecker D. sanguinolentum  Proposed split of endemic taxon of Sumba (where found at all altitudes) from D. sanguinolentum, based on moderately distinct plumage and striking vocal differences (Rheindt and Eaton 2019).
   PS 10.1 Timor Flowerpecker Dicaeum  hanieli Blood-breasted Flowerpecker D. sanguinolentum  Proposed split of montane Timor endemic taxon from D. sanguinolentum, based on moderately distinct plumage and apparent vocal differences (Rheindt and Eaton 2019).
  AS 9.2 West African Crested Tern Thalasseus albididorsalis Royal Tern T. maximus Genetic analysis supports sister relation of T. m. albididorsalis to T. bengalensis (Collinson et al. 2017). Elevation to species status would remove paraphyly.  NACC 2020-A-9. ENG.
  AS 10.1 Numfor Leaf Warbler Phylloscopus maforensis Island Leaf Warbler P. poliocephalus  Morphologically distinct; genetics desired (Beehler & Pratt 2016, HBW).  Alström et al. 2018 sampled subspecies pallescens from Kolombangara I (w Solomons).  Restore poliocephalus.
  AS 10.1 Biak Leaf Warbler Phylloscopus misoriensis Island Leaf Warbler P. poliocephalus Morphologically distinct; genetics desired (Beehler & Pratt 2016, HBW); not sampled by Alström et al. 2018.
  AS 10.1 Eastern Black-eared Wheatear Oenanthe melanoleuca (Western) Black-eared Wheatear O.  hispanica   Accepted split of Eastern Black-eared Wheatear (O. melanoleuca from Western addresses genetic paraphyly in this Oenanthe species complex (Aliabadian et al. 2012, Schweizer et al. 2019, Jirle for Swedish Taxonomic Committee).  Black-eared Wheatear O. hispanica currently includes two subspecies (hispanica, melanoleuca). But melanoleuca is sister to M. cypriaca and hybridizes extensively with O. pleschanka in northern Iran. Hispanica is sister to that clade.
  AS 9.2 Stejneger's Scoter Melanitta stejnegeri White-winged Scoter M. deglandi Accepted split of Stejneger's Scoter M. stejnegeri from White-winged Scoter M. deglandi based on lack of hybridization and on morphological characters that include the black rather than brown flanks (deglandi also has brown tinged scapulars), a more obvious hook "nose" on stejnegeri, a longer white post-ocular mark on stejnegeri, and different bill coloration (HBW, NACC 2019-A-16 and references therein).
  PS 9.2 Pacific Fulmar Fulmarus rodgersii Atlantic [Northern] F. glacialis Proposed split of Pacific Fulmar is based primarily on deep mtDNA divergence and minor morphological differences (Kerr and Dove 2013, NACC 2019-A-1 decline)
  PS 9.2 Harlan's Hawk Buteo harlani Red-tailed Hawk B. jamaicensis Proposed species recognition of controversial Harlan's Hawk based many diagnosable differences (Clark 2018, NACC 2019-A-2 decline with two views of these highly variable Canadian buteos
  AS 9.2 Australian Tern Gelochelidon macrotarsa Gull-billed Tern G. nilotica Accepted split of G. macrotarsa is based on  morphological differences (Rogers et al. 2005, HBW, Schodde pers. comm). ENG Australian Gull-billed Tern
  AS 9.2 Malagasy Palm  Swift Cypsiurus gracilis African Palm Swift C. parvus Accepted split of Malagasy Palm Swift from African Palm Swift (C. parvus) based on vocalizations and plumage coloration (Mills et al. 2019). Includes griveaudi on Comoro Is
  AL 9.2 Schouteden's Swift Schoutedenapus schoutedeni Scarce Swift S. myioptilus Probably are darker juvenile or sub-adult Scarce Swifts subspecies chapini (Fishpool 2019)
  AS 9.2 Green-headed Hillstar Oreotrochilus stolzmanni Andean Hillstar O. estella Green-headed Hillstar is an accepted split from O. estella based on plumage differences and mtDNA relationship to O. melanogaster.  SACC 808
  NEW 9.2 Blue-throated Hillstar Oreotrochilus cyanolaemus   Newly described species based on striking plumage differences from Andean Hillstar O. (estella) stolzmanni) (Somoza-Molina et al 2018).  Genomic analysis of estella species complex desired (see HBW, SACC 808)
  AS 9.2 Indochinese Roller Coracias affinis Indian Roller C. benghalensis Morphologically distinct Indochinese Roller may be more closely related to Purple-winged Roller (C. temmincki) than to Indian Roller separated by a narrow hybrid zone (Johansson et al. 2018, HBW)
AL 9.2 Barbary Falcon Falco pelegrinoides Peregrine Falcon Falco peregrinus Barbary Falcon is genetically similar to other subspecies of Peregrine Falcon and is deeply embedded in the Peregrine Falcon complex (White et al. 2013, H&M4, Fuchs et al. 2015, Wink 2015, HBW Alive).
  AS 9.2 Small-headed Elaenia Elaenia sordida Highland Elaenia E. obscura Elaenia sordida is split from Highland Elaenia based on mtDNA genetics and vocals (Rheindt et al. 2008, Minns 2017, HBW, SACC 806). English name follows SACC.
  AS 9.2 Ceara Woodcreeper Xiphorhynchus atlanticus Lesser Woodcreeper X. fuscus Accepted split of monotypic Atlantic Woodcreeper is based on genetic, morphological and vocal distinctions (Cabanne et al. 2014, Garcia et al. 2017, SACC 659, 809, HBW). ENG: Nordeste, Ceara?
AL 9.2 Negro Stipple-throated Antwren Epinecrophylla pyrrhonota Napo Stipple-throated Antwren E. haematonota Negro Stipple-throated Antwren was split from [Napo] Stipple-throated Antwren (Whitney et al. 2013e, SACC 589A), but vocalizations are identical and morphological differences slight (Isler and Whitney 2018, SACC 817). ENG  Epinecrophylla spp become Stipplethroats
AL 9.2 Yasuni Stipple-throated Antwren Epinecrophylla fjeldsaai Napo Stipple-throated Antwren E. haematonota Yasuni Stipple-throated Antwren was split from [Napo] Stipple-throated Antwren (Whitney et al. 2013e, SACC 589A), but vocalizations are identical and morphological differences slight (Isler and Whitney 2018, SACC 817)
  AS 9.2 Biak Whistler Pachycephala (Colluricincla) melanorhyncha Arafura [Little] Shrikethrush C. megarhyncha The endemic Biak Little 'Shrikethrush' C. m. melanorhyncha is a whistler, sister to Pachycephala phaionota (Marki et al. 2018). Move from Colluricincla to species of Pachycephala. Rename.
  AS 9.2 Sepik-Ramu Shrikethrush Colluricincla tappenbecki Arafura [Little] Shrikethrush C. megarhyncha The following accepted splits (9.2) of the Little Shrikethrush species complex are based on genetics and morphology (Marki et al. 2018, Schodde pers. comm). Proposed split (9.2) of Sepik-Ramu Shrikethrush C. tappenbecki includes ssp madaraszi and maeandrina
  AS 9.2 Rufous Shrikethrush Colluricincla rufogaster Arafura [Little] Shrikethrush C. megarhyncha Accepted split of Rufous Shrikethrush C. rufogaster includes ssp griseata and goodsoni. Ssp aelptes is included in goodsoni; gouldii and synaptica are included in nominate rufogaster 
  AS 9.2 Tagula Shrikethrush Colluricincla discolor Arafura [Little] Shrikethrush C. megarhyncha Monotypic
  AS 9.2 Mamberamo Shrikethrush Colluricincla obscura Arafura [Little] Shrikethrush C. megarhyncha Monotypic; includes ssp hybridus
  AS 9.2 Waigeo Shrikethrush Colluricincla affinis Arafura [Little] Shrikethrush C. megarhyncha Monotypic
  AS 9.2 Variable Shrikethrush Colluricincla fortis Arafura [Little] Shrikethrush C. megarhyncha Includes ssp trobriandi (??) and despecta (includes neos and superflua)
  NEW 9.2 Cream-eyed Bulbul Pycnonotus pseudosimplex Cream-vented Bulbul P. simplex Cream-eyed Bulbul P. pseudosimplex is a newly described species previously known as an eye-color morph of Cream-vented Bulbul P. simplex perplexus on Borneo.  Cream-eyed Bulbul is a genetically distinct sister to Ashy-fronted Bulbul P. cinereifrons of Palawan (Shakya et al. 2019).
  AS 9.2 Morotai White-eye Zosterops dehaani Cream-throated White-eye Z. atriceps Proposed split of Morotai White-eye is based on distinct plumage, exceptional dawn song  and submontane/montane ecology (Rheindt and Eaton 2018)
  AS 9.2 Wakatobi White-eye Zosterops flavissimus Lemon-bellied White-eye Z. chloris Accepted split of Wakatobi White-eye is based on morphology, genetics, and vocalizations (O'Connell et al. 2019)
PS 9.2 Saint Lucia Thrasher Ramphocinclus sanctaeluciae White-breasted Thrasher R. brachyurus Proposed split of Saint Lucia Thrasher is based on molecular phylogenetics (DaCosta et al. 2019). Await research in progress
  AS 9.2 Campina Thrush Turdus arthuri Black-billed Thrush T. ignobilis Campina Thrush is an accepted split from Black-billed Thrush T. ignobilis  justified by sympatry without intergradation at two Colombian localities (Cerqueira et al. 2016, Avendaño et al. 2017, Stiles and Avendaño 2019, SACC 814).
  AS 9.2 Pantepui Thrush Turdus murinus Black-billed Thrush T. ignobilis Pantepui Thrush is an accepted split from Black-billed Thrush T. ignobilis based on genetic divergence (Cerqueira et al. 2016, Avendaño et al. 2017, Stiles and Avendaño 2019, SACC 814).
PS 9.2 Philippine Shortwing Brachypteryx poliogyna
White-browed Shortwing B. montana
Philippine  and Indonesian members of the White-browed Shortwing species complex are proposed splits from the Oriental mainland taxa and from each other (HBW, Eaton et al. 2016, Alström et al. 2018). Await full analysis of island taxa.
PS 9.2 Sumatran Shortwing Brachypteryx saturata
White-browed Shortwing B. montana
Philippine  and Indonesian members of the White-browed Shortwing species complex are proposed splits from the Oriental mainland taxa and from each other (HBW, Eaton et al. 2016, Alström et al. 2018). Monotypic. Await full analysis of island taxa.
PS 9.2 Bornean Shortwing Brachypteryx erythrogyna
White-browed Shortwing B. montana
Philippine  and Indonesian members of the White-browed Shortwing species complex are proposed splits from the Oriental mainland taxa and from each other (HBW, Eaton et al. 2016, Alström et al. 2018). Monotypic. Await full analysis of island taxa.
PS 9.2 Flores Shortwing Brachypteryx floris
White-browed Shortwing B. montana
Philippine  and Indonesian members of the White-browed Shortwing species complex are proposed splits from the Oriental mainland taxa and from each other (HBW, Eaton et al. 2016, Alström et al. 2018). Monotypic. Await full analysis of island taxa.
  AS 9.2 Hill Blue Flycatcher Cyornis whitei Javan [Hill] Blue Flycatcher C. banyumas C. whitei is an accepted split from C. banyumas based on genetics and vocalizations (Zhang et al. 2016, Gwee et al. 2019. Note transfer of established English name Hill Blue Flycatcher to C. whitei.
AS 9.2 Dayak Blue Flycatcher Cyornis montanus Javan [Hill] Blue Flycatcher C. banyumas A Borneo endemic, the Dayak Blue Flycatcher is a proposed split from Javan [Hill] Blue Flycatcher based on vocalizations (Gwee et al. 2019). STET, pending current studies (Sheldon pers. comm.)
  AS 9.2 Indochinese Blue Flycatcher Cyornis sumatrensis Tickell's Blue Flycatcher C. tickelliae Widespread Indochinese Blue Flycatcher is a proposed split from Tickell's Blue Flycatcher based on morphology and vocalizations  (Rasmussen & Anderton 2005, Gwee et al. 2019, HBW)
PL 9.2 Tanahjampea Blue Flycatcher Cyornis djampeanus Sulawesi Blue Flycatcher C. omissus Taxonomic status and relationships of Tanahjampea Blue Flycatcher are uncertain (Gwee et al. 2019). Stet species for now
PS 9.2 Kalao Blue Flycatcher Cyornis kalaoensis Sulawesi Blue Flycatcher C. omissus Kalao Blue Flycatcher is a proposed split based on vocalizations (Gwee et al. 2019).
PS 9.2 Crocker Jungle Flycatcher Cyornis ruficrissa Rufous-tailed Jungle Flycatcher C. ruficauda Proposed split of Borneo subspecies of Rufous-tailed Jungle Flycatcher as Crocker Jungle Flycatcher C. ruficrissa based on vocalizations, but status uncertain (Gwee et al. 2019).
PS 9.2 Sulu Jungle Flycatcher Cyornis ocularis Rufous-tailed Jungle Flycatcher C. ruficauda Proposed split of Rufous-tailed Jungle Flycatchers on Sulu Arch as Sulu Jungle Flycatcher (C. ocularis) based on vocalizations (Gwee et al. 2019)
  AS 9.2 Yucatan Gnatcatcher Polioptila albiventris White-lored Gnatcatcher P. albiloris Accepted split of Yucatan Gnatcatcher P. albiventris from White-lored Gnatcatcher is based on genetic and vocal distinctions (Smith et al 2018; NACC 2019-C-7, E-6a).
  AS 9.2 Nicholson's Pipit Anthus nicholsoni Long-billed Pipit A. similis Accepted split of South African pops of Long-billed Pipit is based on their allopatric distributions (southern and East African populations separated by ca. 1 800 km), their non-migratory nature and their high cyt b sequence divergence values (Pietersen et al. 2018)
AL 9.1

Chaco Nothura

Nothura chacoensis Spotted Nothura N. maculosa Treat Chaco Nothura as a subspecies of Spotted Nothura (Hayes et al. 2018, SACC 782)
SSP 9.1

Whenua Hou Diving Petrel

Pelecanoides whenuahouensis South Georgia Diving Petrel P. georgicus Proposed split of (endangered) Whenua Hou Diving Petrel based primarily on slight phenotypic differences (Fischer et al. 2018). Treat provisionally as ssp of georgicus pending vocal and genetic diagnoses
  AS 9.1 Rote Boobook Ninox rotiensis Australian [Southern] Boobook N. boobook Accepted split from Southern Boobook N. boobook based on genetics and vocals (Gwee et al. 2017)
  AS 9.1 Timor Boobook Ninox fusca Australian [Southern] Boobook N. boobook
Accepted split from Southern Boobook N. boobook based on genetics and vocals (Gwee et al. 2017)
  AS 9.1 Alor Boobook Ninox plesseni Australian [Southern] Boobook N. boobook
Accepted split from Southern Boobook N. boobook based on genetics and vocals (Gwee et al. 2017)
  AS 9.1 Buru Boobook Ninox hantu Seram [Hantu] Boobook N. squamipila Accepted split of Buru Boobook from unrelated Seram Boobook based on genetics and vocals (Gwee et al. 2017). ENG Rename N. squamipila 
  AS 9.1 Green-backed Hillstar Urochroa leucura Rufous-gaped [White-tailed] Hillstar U. bougueri Green-backed Hillstar is a proposed (9.1) split from White-tailed Hillstar, renamed Rufous-gaped Hillstar (HBW Alive, Donegan et al. 2015; SACC 775, 800).
  NEW 9.1 Dry-forest Sabrewing Campylopterus calcirupicola Grey-breasted Sabrewing C. largipennis Dry-forest Sabrewing is a proposed (9.1) new member of the Campylopterus largipennis species complex (Lopes et al. 2017). SACC 755, 756 and HBW accept with species status. ENG Limestone Sabrewing?
  AS 9.1 Chiriqui Foliage-gleaner Automolus exsertus Buff-throated Foliage-gleaner A. ochrolaemus Chiriqui Foliage-gleaner is split from  widespread Buff-throated Foliage-gleaner based on vocals (incl. playback expts), and mtDNA divergence (Freeman and Montgomery 2017, NACC 2018-A-2)
  AS 9.1 Rufous-breasted Antpitta Grallaricula leymebambae Rusty-breasted Antpitta Gferrugineipectus  Van Doren et al. 2018, SACC 784 accepted
  AS 9.1 Tapajos Antpitta Myrmothera subcanescens Thrush-like Antpitta M. campanisona Carneiro et al. 2018;  SACC 785 accepted .
  AS 9.1 Spotted Scrubwren Sericornis maculatus White-browed Scrubwren S. frontalis Accepted split follows comprehensive revision of scrubwrens and allies (Norman et al. 2018)
  AS 9.1 Albertine Sooty Boubou Laniarius holomelas Mountain Sooty Boubou L. poensis Accepted split supported by eye color, vocals and preliminary DNA evidence (Voelker et al. 2010, H&M4, HBW).
  NEW 9.1 Western Square-tailed Drongo Dicrurus occidentalis [Common] Square-tailed Drongo D. ludwigii Western Square-tailed Drongo is a newly described species embedded in D. ludwigii but sister to newly split Sharpe's Drongo (Fuchs et al. 2018).  ENG
  AS 9.1 Sharpe's Drongo Dicrurus sharpei [Common] Square-tailed Drongo D. ludwigii Sharpe's Drongo (including elgonensis, synonym) is a proposed split from Square-tailed Drongo D. ludwigii  based on plumage color and genetic lineage (Fuchs et al. 2018).
  AS 9.1 Fanti Drongo Dicrurus atactus Velvet-mantled Drongo D. modestus Fanti Drongo is a proposed split from the Velvet-mantled Drongo coracinus/modestus complex (Fuchs et al. 2017). ENG
  AS 9.1 Glossy-backed Drongo Dicrurus divaricatus Fork-tailed Drongo D. adsimilis Glossy-backed Drongo D. divaricatus is a proposed split from the Fork-tailed Drongo species complex (Fuchs et al. 2017).  D. adsimilis would retain ssp fugax. ENG
PS 9.1 Clancey's Drongo Dicrurus apivorus Fork-tailed Drongo D. adsimilis Clancey's Drongo D.a. apivorus is a proposed split from the Fork-tailed Drongo species complex (Fuchs et al. 2017).
AL 9.1 Erlanger's Lark Calandrella erlangeri Blanford's Lark C. blanfordi Treat Erlanger's Lark as a subspecies of Blanford's Lark (Stervander et al 2016)
  AS 9.1 Rufous-capped Lark Calandrella eremica Blanford's Lark C. blanfordi Accepted split of Rufous-capped Lark from Blanford's Lark. Includes daaroodensis (Stervander et al. 2016)
AL 9.1 Steppe Grey Shrike Lanius pallidirostris Great Grey Shrike L. excubitor Lanius pallidirostris is split from Lanius excubitor (King 1997, Hernández et al. 2004, Panov 2011) but not by HBW, Clements, H&M4.  Restore to status as ssp of excubitor pending full resolution of this complex
  AS 9.1 Chivi Vireo Vireo chivi Red-eyed Vireo Vireo olivaceus Chivi Vireo is split from Red-eyed Vireo based on lack of introgression and not monophyletic (Battey and Klicka 2017, NACC 2018-B-4)
  NEW 9.1 Rote Leaf Warbler Phylloscopus rotiensis   Newly described, vocally and genetically distinct species with long bill; sister to Timor Leaf Warbler P. presbytes (Ng et al. 2018)
  AS 9.1 Socotra White-eye Zosterops socotranus Abyssinian White-eye Z. abyssinicus An old outlying lineage that should be split from unrelated mainland Z. abyssinicus (Cox et al . 2014). SEQ
  AS 9.1 Mbulu White-eye Zosterops mbuluensis
Montane White-eye Z. poliogastrus Accepted split from artificial Montane White-eye subspecies complex Z. poliogastrus (Cox 2013, Cox et al. 2014, Pearson & Turner 2017). Is sister to Z. abyssinicus flavilateralus (Cox et al 2014). Monotypic.
  AS 9.1 Pale White-eye Zosterops flavilateralis
Abyssinian White-eye Z. abyssinicus Accepted split from Abyssinian White-eye (Cox 2013, Cox et al. 2014, Pearson & Turner 2017).  Includes jubaensis. ENG Pale Scrub White-eye?
  AS 9.1 Aldabra White-eye Zosterops aldabrensis
Malagasy White-eye Z. maderaspatanus Accepted split from Malagasy White-eye. Aldabra White-eye is sister to Seychelles White-eye and, in turn, Kirk's White-eye and Malagasy White-eye (Cox et al. 2014)
  AS 9.1 South Pare White-eye Zosterops winifredae
Montane White-eye  Z. poliogastrus Accepted split from artificial Montane White-eye subspecies complex Z. poliogastrus (Cox 2013, Cox et al. 2014, Pearson & Turner 2017). Sister to Z. pallidus?
  AS 9.1 Southern Yellow White-eye  Zosterops anderssoni African Yellow White-eye  Z. senegalensis Accepted split from African Yellow White-eye Z. senegalensis (Cox 2013, Cox et al. 2014, Pearson & Turner 2017); includes stierlingi provisionally
  AS 9.1 Broad-ringed White-eye Zosterops eurycricotus Heuglin's [Montane] White-eye  Z. poliogastrus Accepted split from artificial Montane White-eye subspecies complex Z. poliogastrus (Cox 2013, Cox et al. 2014, Pearson & Turner 2017). Monotypic
  AS 9.1 Green White-eye Zosterops stuhlmanni African Yellow White-eye Z. senegalensis Accepted split from African Yellow White-eye Z. senegalensis (Cox 2013, Cox et al. 2014, Pearson & Turner 2017); includes ssp toroensis, scotti
AL 9.1 Mountain White-eye Zosterops montanus Warbling [Japanese] White-eye Z. japonicus Montane White-eye is a proposed lump with revised Warbling [Japanese] White-eye complex (Lim et al. 2018). ENG
  AS 9.1 Swinhoe's White-eye Zosterops simplex Japanese White-eye Z. japonicus Swinhoe's White-eye is a proposed split from the revised [Warbling] Japanese White-eye complex. It would include ssp erwini and salvadorii (Lim et al. 2018)
AL 9.1 Enggano White-eye Zosterops salvadorii Swinhoe's White-eye Z. simplex Enggano White-eye (Z. salvadorii) is a weakly defined species best treated as a subspecies of Zosterops simplex (Lim et al. 2018).
  AS 9.1 Hume's White-eye Zosterops auriventer Indian [Oriental] White-eye Z. palpebrosus Z. auriventer is redefined as an upland species related to Z. everetti not Z. palpebrosus (Wells 2017).  Includes ssp tahanensis and wetmoreiThe name auriventer is the senior name available for mainland Asian populations named Hume’s White-eye.
  AS 9.1 Sangkar White-eye  Zosterops melanurus Indian [Oriental] White-eye  Z. palpebrosus Sangkar White-eye is a proposed split from Oriental White-eye (Lim et al. 2018). Includes ssp buxtoni
  AS 9.1 Chattering Gnatwren Ramphocaenus sticturus Trilling [Long-billed] Gnatwren R. melanurus Accepted split from Long-billed Gnatwren based on phylogenetics, voice, plumage, and sympatry; includes ssp obscurus (Smith et al. 2018, SACC 790A). ENG Rename R. melanurus 'Trilling' Gnatwren
PS 9.1 Northern Gnatwren Ramphocaenus rufiventris
[Trilling] Long-billed Gnatwren R. melanurus Split trans-Andean R. rufiventris  (including ardeleo and sanctaemarthae) from cis-Andean R. melanurus (Smith et al. 2018, SACC 790B). Colombian forms not fully resolved. STET PS
PL 9.1 Violet-hooded Starling Aplonis circumscripta Metallic Starling A. metallica Violet-hooded Starling is a relict split in Gill & Wright 2006, recommended by Ben King. Review underway.
PS 9.1 Ethiopian Thrush Turdus simensis Groundscraper Thrush T. litsitsirupa Ethiopian Thrush is a proposed split based on deep genetic divergence, plumage and vocal differences (Nylander et al. 2008, HBW). Stet ssp pending full analysis
  AS 9.1 Himalayan Shortwing Brachypteryx cruralis White-browed Shortwing B. montana The three Asian forms of White-browed Shortwing B. montana are split from Philippine and Indonesian taxa and from each other (HBW, Eaton et al. 2016, Alström et al. 2018)
  AS 9.1 Chinese Shortwing Brachypteryx sinensis
White-browed Shortwing B. montana
The three Asian forms of White-browed Shortwing B. montana are split from Philippine and Indonesian taxa and from each other (HBW, Eaton et al. 2016, Alström et al. 2018). Monotypic
  AS 9.1 Taiwan Shortwing Brachypteryx goodfellowi
White-browed Shortwing B. montana
The three Asian forms of White-browed Shortwing B. montana are split from Philippine  and Indonesian taxa and from each other (HBW, Eaton et al. 2016, Alström et al. 2018). Monotypic
AL 9.1 Cherrie's Tanager Ramphocelus costaricensis Scarlet-rumped [Passerini's] Tanager R. passerinii Proposal to lump Cherrie's Tanager as a subspecies of Passerini's Tanager R. passerinii is based on nondiscrimination in playback expts (Freeman and Montgomery 2017, NACC 2018-A-4). Change English name of R. passerinii to Scarlet-rumped Tanager.
PS 8.1 Ecuadorian Hermit Phaethornis baroni Long-billed Hermit P. longirostris Baron's Hermit Phaethornis baroni is treated as conspecific with Long-billed Hermit P. longirostris following SACC (136). Restoration of species status deserves reconsideration given morphological distinctions, vocal differences (see xeno-canto), allopatric range, and advances in the taxonomy of this species complex (Ridgely and Greenfield 2001, HBW). Await phylogeny?
PS 8.2 Yellow-faced Grosbeak Caryothraustes brasiliensis Yellow-green Grosbeak C. canadensis Yellow-faced Grosbeak of the Atlantic forests of Brasil is a proposed split based on morphology and vocalizations (Tonetti et al. 2017). SACC proposal?
  SSP 8.2 'Trindade' Frigatebird Fregata trinitatis Lesser Frigatebird F. ariel Proposal to split endangered Lesser Frigatebirds of the Atlantic Ocean based on bone and plumage differences (Olson 2017, SACC 768). Stet SSP
  NEW 8.2 Santa Marta Screech Owl Megascops gilesi Krabbe 2017; long awaited!  SACC 769
AL 8.2 Napo Screech Owl Megascops napensis Roraiman Screech Owl M. roraimae Lump Napo Screech Owl and Roraiman Screech Owl as M. roraimae, which has precedence (Krabbe 2017). ENG Foothill Screech Owl. SACC 771
AL 8.2 Colombian Screech Owl Megascops colombianus Rufescent Screech Owl M. ingens Species status of Colombian Screech Owl Megascops colombianus re M. ingens has been uncertain (Ridgely & Greenfield 2001, H&M, BLI, and SACC).  Genetics and vocals support this lump (Krabbe 2017). SACC 770
AL 8.2 Baron's Spinetail Cranioleuca baroni Line-cheeked Spinetail C. antisiensis Lump Baron's Spinetail with Line-cheeked Spinetail due to clinal intergradation (Seeholzer & Brumfield 2017, SACC 762 accepted)
  AS 8.2 Rufescent Antshrike Thamnistes rufescens Russet Antshrike T. anabatinus Accepted split of Rufescent Antshrike from Russet Antshrike based on vocals and plumage (Isler & Whitney 2017,  SACC 758).
  NEW 8.2 Painted Manakin Machaeropterus eckelberryi Striolated [Western Striped] Manakin M. striolatus Newly desribed species  based on vocalizations only (Lane et al. 2017,  SACC 761). Note that previous IOC list split polytypic M. striolatus from  M. regulus, which this study advocates.
  NEW 8.2 Rote Myzomela Myzomela irianawidodoae Sumba Myzomela M. dammermani Newly described on the basis of morphology and vocalizations from the island of Rote in the Lesser Sundas (Eaton et al 2016, Prawiradilaga et al. 2017)
  AS 8.2 White-bellied Whipbird Psophodes leucogaster Black-throated [Western] Whipbird M. nigrogularis White-bellied [Mallee] Whipbird Psophodes leucogaster (including lashmari) is split from Black-throated [Western] Whipbird P. nigrogularis including oberon (Burbidge et al. 2017).  For historical background see Schodde & Mason 1999, Christidis & Boles 2008, Toon et al. 2013. English name changes follow split
  AS 8.2 Taliabu Fantail Rhipidura sulaensis Sulawesi [Rusty-bellied] Fantail R. teysmanni Taliabu Fantail is a proposed split from Rusty-bellied Fantail based on genomic analysis and vocalizations (Ng et al 2017).  Two sweeps of mtDNA are invoked.  ENG
  AS 8.2 Maghreb Magpie Pica mauritanica Eurasian Magpie P. pica Lee et al. 2003, Song et al. 2018, HBW. Monotypic
  AS 8.2 Asir Magpie Pica asirensis Eurasian Magpie P. pica Lee et al. 2003, Song et al. 2018, HBW. Monotypic
  AS 8.2 Black-rumped Magpie Pica bottanensis Eurasian Magpie P. pica Lee et al. 2003, Song et al. 2018, HBW. Monotypic. ENG Tibetan vs Black-rumped
  AS 8.2 Oriental Magpie Pica serica Eurasian Magpie P. pica Lee et al. 2003, Song et al. 2018, HBW. Monotypic (includes anderssoni).
  AS 8.2 Lesser Lophorina Lophorina minor Greater [Superb Bird-of-Paradise] Lophorina L. superba Irestedt et al. 2017; monotypic. ENG provisional
  AS 8.2 Crescent-caped Lophorina Lophorina niedda Greater [Superb Bird-of-Paradise] Lophorina L. superba Irestedt et al. 2017; includes inopinata ssp nova. ENG Crescent-caped Lophorina  provisional
PS 8.2 Viscaino Thrasher Toxostoma arenicola LeConte's Thrasher T. lecontei Viscaino Thrasher is a proposed split from LeConte's Thrasher based on parapatry, genetic divergence and effective reproductive isolation (Vázquez-Miranda et al. 2017, NACC 2018-C-14 decline). Stet SSP status
  AS 8.2 Banggai Jungle Flycatcher Cyornis pelingensis Sula [Henna-tailed] Jungle Flycatcher C. colonus Accepted split of Banggai Jungle Flycatcher C. pelingensis from sister ssp on Sula Island based on vocal differences, genetic divergence, and restricted gene flow (Eaton et al. 2016, Garg et al. 2018).  Subspecies subsolanus invalid? (HBW) .
PS 8.2 Grey-crowned Ground Sparrow Melozone occipitalis White-eared Ground Sparrow M. leucotis Grey-crowned Ground Sparrow is a proposed split from from White-eared Ground Sparrow M. leucotis based on morphometrics, vocalizations, and genetics (Sandoval 2017ab, NACC 2018-C-7 decline). STET SSP
  AS 8.2 Morelet's Seedeater Sporophila morelleti Cinnamon-rumped [White-collared] Seedeater S. torqueola Sporophila morelleti (including ssp sharpei, mutanda) is an accepted split from S. torqueola based on morphology, deep genetic divergence and polyphyly (Mason et al. 2018, HBW, NACC 2018-C-8). ENG: Rename S. torqueola Cinnamon-rumped Seedeater.
  AS 8.1 Sclater's Crowned Pigeon  Goura sclaterii Scheepmaker's [Southern] Crowned Pigeon G. scheepmakeri HBW, Gregory 2017, Bruxaux et al. 2017. G. sclaterii is sister to G. cristata; G. scheepmakeri is sister to G. victoria.
SSP 8.1 Ecuadorian Plumeleteer Chalybura intermedia Bronze-tailed Plumeleteer C. urochrysia Species status of C. b. intermedia uncertain, but see Ridgely and Greenfield 2001. Current assignment (7.4) of subspecies to C. buffoni vs C. urochrysia is provisional
SSP 8.1 Lilacine Amazon Amazona lilacina Red-lored Amazon A. autumnalis Pilgrim 2010 unpubl, Donegan et al. 2016, HBW. Stet ssp status pending full workup
  NEW 8.1 Cordillera Azul Antbird Myrmoderus eowilsoni Newly described, distinct species sister to M. ferrugineus (Moncrieff et al. 2018, SACC 763).
  AS 8.1 Purple-backed Fairywren Malurus assimilis Variegated Fairywren M. lamberti McLean et al. 2012, 2017.  Putative hybrid zone with limited gene flow.  Nonsister Variegated Fairywren M. lamberti would be monotypic.
AL 8.1 Liberian Greenbul Phyllastrephus leucolepis Icterine Greenbul P. icterinus Enigmatic Liberian Greenbul is deemed to be a plumage variant of Icterine Greenbul P. icterinus (Phalan et al. 2013, Collinson et al. 2017, HBW)
  AS 8.1 Sclater's Nightingale-Thrush Catharus maculatus 'Gould's [Spotted] Nightingale-Thrush C. dryas Halley et al. 2017
  SSP 8.1 Hainan Laughingthrush Garrulax monachus Black-throated Laughingthrush G. chinensis Wu et al. 2012, HBW.  Slight genetic differences. No vocals. Didn't include similar G.c. germaini, or G. propinquus. Stet as PS subspecies of G. chinensis
  SSP 8.1 Ashambu Blue Robin Sholicola ashambuensis White-bellied Blue Robin S. albiventris Described as a new species (Robin et al. 2017). More white below; vocals. English name provisional. Treat provisionally (8.1) as subspecies of S. albiventris
  AS 8.1 Western Miombo Sunbird Cinnyris gertrudis  Eastern Miombo [Double-collared] Sunbird C. manoensis Irwin et al. 2014, HBW, Bowie MS. Previous species name pintoi is a junior subjective synonym of gertrudis. English names under discussion
  AS 8.1 Peruvian Pipit Anthus peruvianus Yellowish Pipit A. lutescens Peruvian Pipit A. peruvianus is split from Yellowish Pipit A. lutescens (Van Els and Norambuena 2017, HBW, SACC 765)
  AS 8.1 Puna Pipit Anthus brevirostris Campos [Short-billed] Pipit A. furcatus Puna Pipit A. brevirostris is split from Short-billed Pipit A. furcatus (Van Els and Norambuena 2017). ENG
PS 7.3 Western Willet Tringa inornata [Eastern] Willet T. semipalmata Stet subspecies rank for now (Oswald et al. 2016. NACC 2017-A-10 decline).
AL 7.3 Thayer's Gull Larus thayeri Iceland Gull L. glaucoides Treat as subspecies of Iceland Gull (Godfrey 1986, Snell 2002, NACC 2017-C-7)
PL 7.3 Fork-tailed Drongo-Cuckoo Surniculus dicruroides Square-tailed Drongo-Cuckoo S. lugubris H&M4, Eaton et al. 2016. Species limits of drongo-cuckoos uncertain. Stet for now
  AS 7.3 Plume-toed Swiftlet Collocalia affinis  Glossy Swiftlet  C. esculenta Rheindt et al. 2017. English name provisional. Includes elachyptera, cyanoptila, vanderbilti, oberholseri
  AS 7.3 Christmas Island Swiftlet Collocalia natalis  Glossy Swiftlet  C. esculenta Rheindt et al. 2017. Monotypic
  AS 7.3 Ridgetop Swiftlet Collocalia isonota  Glossy Swiftlet  C. esculenta Rheindt et al. 2017. Includes bagabo
  AS 7.3 Grey-rumped Swiftlet Collocalia marginata  Glossy Swiftlet  C. esculenta Rheindt et al. 2017. Includes septentrionalis
  AS 7.3 Tenggara Swiftlet Collocalia sumbawae  Glossy Swiftlet  C. esculenta Rheindt et al. 2017. Includes sumbae
  AS 7.3 Drab Swiftlet Collocalia neglecta  Glossy Swiftlet  C. esculenta Rheindt et al. 2017. Includes perneglecta
  AS 7.3 Satin Swiftlet Collocalia uropygialis  Glossy Swiftlet  C. esculenta Rheindt et al. 2017. Includes albidior
DEL 7.3 Bogota Sunangel Heliangelus zusii Hybrid Long-tailed Sylph (Aglaiocercus kingii) X ??? Pérez-Emán et al. 2017
SSP 7.3 Mesoamerican Flicker Colaptes mexicanoides Northern Flicker C. auratus Stet subspecies for now (Manthey et al. 2017; NACC 2017-C-4)
PS 7.3 Malee Whipbird Psophodes leucogaster Western Whipbird P. nigrogularis Burbidge et al. 2017; includes ssp lashmari. See 8.2
SSP 7.3 Least Vireo Vireo pusillus Bell's Vireo V. bellii Klicka et al. 2016. Includes arizonae. NACC 2017-C-14 split vote declined
  AS 7.3 Northern Shrike Lanius borealis Great Grey Shrike L. excubitor Northern Shrike is sister to Loggerhead Shrike L. ludovicianus; includes ssp sibiricus, bianchii, mollis, and funereus (Olsson et al. 2010, Johnsen et al. 2010, H&M4, NACC 2017-B-8)
  AS 7.3 Natewa Silktail Lamprolia klinesmithi [Taveuni] Silktail L. victoriae Andersen et al. 2017
PS 7.3 Imeri Wren  Cyphorhinus transfluvialis  Musician Wren  C. arada  Bocalini & Silveira 2016; SACC needs proposal. Stet ssp/PS for now
PS 7.3 Ferruginous Wren  Cyphorhinus modulator  Musician Wren  C. arada Bocalini & Silveira 2016; SACC needs proposal. Stet ssp/PS for now
PS 7.3 Grey-eared Wren  Cyphorhinus salvini  Musician Wren  C. arada Bocalini & Silveira 2016; SACC needs proposal. Stet ssp/PS for now
PS 7.3 Rondonia Wren  Cyphorhinus interpositus  Musician Wren  C. arada Bocalini & Silveira 2016; SACC needs proposal. Stet ssp/PS for now
PS 7.3 Grey-flanked Wren  Cyphorhinus griseolateralis  Musician Wren  C. arada Bocalini & Silveira 2016; SACC needs proposal. Stet ssp/PS for now
SSP 7.3 'Mesoamerican' Creeper  Certhia albescens  Brown Creeper C. americana  Manthey et al. (2011ab, 2015, 2016) NACC 2017-C-2 decline.
SSP 7.3 Grayson's Thrush Turdus graysoni Rufous-backed Robin T. rufopalliatus  Stet subspecies status. Montaño-Rendon et al. (2015), NACC 2017-B-3 decline
  AS 11.2 Taiwan Thrush Turdus niveiceps Island Thrush T. poliocephalus Usually treated as a subspecies of Turdus poliocephalus, but the sexually dimorphic niveiceps is not a member of the Island Thrush complex (Nylander et al. 2008; Fjeldså et al. 2020).
  AS 7.3 Banasura Laughingthrush Montecincla jerdoni Nilgiri [Black-chinned] Laughingthrush M. cachinnans Praveen & Nameer 2012, Robin et al. 2017. Change genus from Trochalopteron to Montecincla. Restore previous English name Nilgiri Laughing Thrush.
  AS 7.3 Ashambu Laughingthrush Montecincla meridionale Palani [Kerala] Laughingthrush M. fairbanki Praveen & Nameer 2012, Robin et al. 2017.  Change genus from Trochalopteron to Montecincla
DEL 7.3 Ventania Yellow Finch Sicalis holmbergi Greater Yellow Finch S. auriventris López-Lanús 2017, SACC 748 (No)
PS 7.3 Calaveras Warbler Oreothlypis ridgwayi Nashville Warbler O. ruficapilla Stet subspecies status  (Weir and Schluter 2004, Smith et al. 2005; NACC 2017-C-5
  AS 7.3 Cassia Crossbill Loxia sinesciuris Red Crossbill L. curvirostra Benkman et al. 2009, Parchman et al. 2016, NACC 2017-A-4. ENG South Hills Crossbill
PL 7.3 Arctic/Hoary Redpoll Acanthis hornemanni Common Redpoll A. flammea Decline proposed lump of Arctic/Common Redpoll pending confirmation of nonassortative mating (Mason & Taylor 2015, NACC 2017-B-7 split vote.)
  AS 7.3 Lesser Redpoll Acanthis cabaret Common Redpoll A. flammea Knox 2001, Ottvall et al. 2002, Marthinsen et al. 2008, Mason & Taylor 2015, BOU, H&M4, NACC 2017-B-7
  AS 7.3 Baird's Junco Junco bairdi Yellow-eyed Junco J. phaeonotus Milá et al. 2016, NACC 2017-A-11
  AS 7.2 Black-fronted Francolin Pternistis atrifrons Chestnut-naped Francolin P. castaneicollis Töpfer et al. 2014
  AS 7.2 American Barn Owl Tyto furcata Western Barn Owl T. alba Nijman and Aliabadian 2013, König & Weick, 2009, Aliabadian et al. 2016.
AL 7.2 Archbold's Owlet-nightjar Aegotheles archboldi Mountain Owlet-nightjar A. albertisi Beehler & Pratt 2016
  AS 7.2 Blue-vented Hummingbird Amazilia hoffmanni Steely-vented Hummingbird A. saucerottei Blue-vented Hummingbird is a distinct member of the Middle American A. cyanura species group, not saucerottei (Stiles & Skutch 1989, McGuire et al. 2014, Jiménez & Ornelas 2015). Note hoffmanni, not sophiae.
  AS 7.2 Peruvian Racket-tail Ocreatus peruanus [White-]Booted Racket-tail O. underwoodii Schuchmann et al. 2016, SACC Apodiformes/62A
PS 7.2 Anna's Racket-tail Ocreatus annae [White-]Booted Racket-tail O. underwoodii Schuchmann et al. 2016; await more data
SSP 7.2 Choco Parakeet Pyrrhura pacifica Maroon-tailed Parakeet P. melanura Ridgely and Greenfield 2001, Donegan et al. 2016, SACC 524, HBW. Stet SSP/PS pending full revision.
  AS 7.2 Rufous-booted  Racket-tail Ocreatus addae [White-]Booted Racket-tail O. underwoodii Schuchmann et al. 2016; Includes annae as ssp. English name provisional
SSP 7.2 Upper Magdalena Parakeet Pyrrhura chapmani Maroon-tailed Parakeet P. melanura Fjeldsa & Krabbe 1990,  Donegan et al. 2016. Stet SSP/PS pending full revision.
  AS 7.2 Cordilleran Parakeet Psittacara frontatus Scarlet-fronted Parakeet P. wagleri Includes minor.  Corey 1918, Sibley & Monroe 1990, Ridgely and Greenfield 2001, HBW 2014, SACC Psittaciformes/7, Donegan et al. 2016
SSP 7.2 Orinoco Amazon Amazona bodini Festive Amazon A. festiva Donegan et al. 2016; await supporting data. Stet SSP/PS pending full analysis
  NEW 7.2 Tatama Tapaculo Scytalopus alvarezlopezi Stiles et al. 2017
  AS 7.2 Cachar Bulbul Iole cacharensis Olive Bulbul I. viridescens Manawatthana et al. 2017; English name provisional
  AS 7.2 Charlotte's Bulbul Iole charlottae Buff-vented Bulbul I. crypta Manawatthana et al. 2017; English name provisional. See also proposed taxonomic changes
  AS 7.2 Whyte's Double-collared Sunbird Cinnyris whytei Ludwig's Double-collared Sunbird C. ludovicensis Bowie 2003, Bowie et al. 2015. Includes skye.
  AS 7.1 Foveaux Shag Leucocarbo stewarti Otago [Stewart Island] Shag L. chalconotus Rawlence et al. 2016
PS 7.1 Samoan Wood Pigeon Columba castaneiceps Metallic Pigeon C. vitiensis Pratt & Mittermeier 2016. Stet as ssp pending full revision of species complex
  AS 7.1 White-throated Wedgebill Schistes albogularis Geoffroy's Wedgebill [Wedge-billed Hummingbird] S. geoffroyi HBW Alive, Donegan et al. 2015. SACC 774 accepted. ENG?
  AS 7.1 Merida Sunangel Heliangelus spencei Amethyst-throated Sunangel H. amethysticollis HBW Alive, Donegan et al. 2015; "Amethystine" Sunangel?
  AS 7.1 Longuemare's Sunangel Heliangelus clarisse Amethyst-throated Sunangel H. amethysticollis HBW Alive, Donegan et al. 2015; "Amethystine" Sunangel?
PS 7.1 Perija Starfrontlet Coeligena consita Golden-bellied Starfrontlet C. bonapartei HBW Alive, Donegan et al. 2015; stet PS for now
PS 7.1 Golden Starfrontlet Coeligena eos Golden-bellied Starfrontlet C. bonapartei HBW Alive, Donegan et al. 2015; stet PS for now
PS 7.1 Green Inca Coeligena conradii  Collared Inca C. torquata  HBW Alive, Donegan et al. 2015; stet PS for now
PS 7.1 Peale's Kingfisher Todiramphus pealei Pacific Kingfisher T. sacer Pratt and Mittermeier 2016; includes manuae. Stet as ssp pending full revision of species complex
PL 7.1 Barbary Falcon Falco pelegrinoides Peregrine Falcon F. peregrinus White et al. 2013, H&M4, Fuchs et al. 2015, HBW Alive, Wink 2015. Stet PL until consensus
  AS 7.1 Darwin's Flycatcher Pyrocephalus nanus Vermilion Flycatcher P. [rubinus] obscurus Carmi et al. 2016
  AS 7.1 San Cristobal Flycatcher Pyrocephalus dubius Vermilion Flycatcher P. [rubinus] obscurus Carmi et al. 2016
  AS 7.1 Scarlet Flycatcher Pyrocephalus rubinus Vermilion Flycatcher  P. [rubinus] obscurus  Carmi et al. 2016
  AS 7.1 Double-collared Crescentchest Melanopareia bitorquata Collared Crescentchest M. torquata Lopes & Gonzaga 2016
PS 7.1 Samoan Myzomela Myzomela nigriventis Cardinal Myzomela M. cardinalis Pratt and Mittermeier 2016. Stet as ssp pending full revision of species complex
PS 7.1 Manua Shrikebill Clytorhynchus powelli Fiji Shrikebill C. vitiensis Pratt & Mittermeier 2016. Stet as ssp pending full revision of species complex
PS 7.1 Manua Starling Aplonis manuae Polynesian Starling A. tabuensis Pratt and Mittermeier 2016. Stet as ssp pending full revision of species complex
  AS 7.1 Mediterranean Flycatcher Muscicapa tyrrhenica Spotted Flycatcher M. striata Vigano & Corso 2015, Pons et al. 2016; incl balearica
PS 7.1 Samoan Thrush Turdus samoensis Island Thrush T. poliocephalus Pratt & Mittermeier 2016
  AS 7.1 Chinese Rubythroat Calliope tschebaiewi Himalayan [White-tailed] Rubythroat C. pectoralis Liu et al. 2016
  AS 7.1 Genovesa Ground Finch Geospiza acutirostris Sharp-beaked Ground Finch G. difficilis Lamichhaney et al. 2015, SACC 676A-7/1; English name provisional
  AS 7.1 Vampire Ground Finch Geospiza septentrionalis Sharp-beaked Ground Finch G. difficilis Lamichhaney et al. 2015, SACC 676A-7/1;English name provisional
  AS 7.1 Genovesa Cactus Finch Geospiza propinqua 'Espanola Cactus [Large Cactus] Finch G. conirostris Lamichhaney et al. 2015, SACC 676B-7/1; G. conirostris is sister to G. magnirostris. 
AL 6.4 Violet-throated Toucanet Aulacorhynchus cognatus Blue-throated Toucanet A. caeruleogularis Winker 2016
AL 6.4 Santa Marta Toucanet Aulacorhynchus lautus White-throated Toucanet A. albivitta Winker 2016
AL 6.4 Grey-throated Toucanet Aulacorhynchus griseigularis White-throated Toucanet A. albivitta Winker 2016
  AS 6.4 Chestnut-throated Flycatcher Myiagra castaneigularis Azure-crested Flycatcher M. azureocapilla Andersen et al. 2015, Clements 2016; includes whitneyi.
  AS 6.4 Baliem Whistler Pachycephala balim Yellow-throated  Whistler P. macrorhyncha Andersen et al. 2014, Beehler & Pratt 2016, Clements 2016
SSP 6.4 Hierro Blue Tit  Cyanistes ombriosus  African Blue Tit  Cyanistes teneriffae Sangster 2006, Stervander et al. 2015, Illera et al. 2016; ssp of teneriffae
PS 6.4 Canary Islands Blue Tit Cyanistes teneriffae  African Blue Tit Cyanistes teneriffae Sangster 2006, Stervander et al. 2015, Illera et al. 2016; includes hedwigae, ombriosus. ENG
SSP 6.4 Gran Canaria Blue Tit Cyanistes hedwigae  African Blue Tit Cyanistes teneriffae Sangster 2006, Stervander et al. 2015, Illera et al. 2016; subspecies of teneriffae
PS 6.4 North African Blue Tit  Cyanistes ultramarinus  African Blue Tit Cyanistes teneriffae Sangster 2006, Stervander et al. 2015, Illera et al. 2016; includes degener; ENG?
SSP 6.4 Fuerteventura Blue Tit Cyanistes degener  African Blue Tit Cyanistes teneriffae Sangster 2006, Stervander et al. 2015, Illera et al. 2016; subspecies of ultramarinus
PS 6.4 Cyrenaican Blue Tit  Cyanistes cyrenaicae  African Blue Tit Cyanistes teneriffae Sangster 2006, Stervander et al. 2015, Illera et al. 2016; monotypic
PS 6.4 La Palma Blue Tit Cyanistes palmensis  African Blue Tit  Cyanistes teneriffae Sangster 2006, Stervander et al. 2015, Illera et al. 2016; monotypic
  AS 6.4 Mongolian Short-toed Lark Calandrella dukhunensis Greater Short-toed Lark C. brachydactyla Alström et al. 2013, Stervander 2016, Clements 2016.
  AS 6.4 Streak-eared Bulbul Pycnonotus conradi Irrawaddy [Streak-eared] Bulbul P. blanfordi Garg et al. 2016
  AS 6.3 Grey-faced Petrel Pterodroma gouldi Great-winged Petrel P. macroptera Wood et al. 2016
  AS 6.3 Ainley's Storm Petrel Oceanodroma cheimomnestes Leach's Storm Petrel O. leucorhoa NACC 2016-C-16
  AS 6.3 Townsend's Storm Petrel Oceanodroma socorroensis Leach's Storm Petrel O. leucorhoa NACC 2016-C-16
  AL 6.3 Caribbean Coot Fulica caribaea American Coot F. americana Caribbean Coot is a white shield color morph/ subspecies of American Coot (HBW Alive, Donegan et al. 2015, NACC 2016-A-9)
PS 5.4 Tepui Nightjar Systellura roraimae Band-winged Nightjar S. longirostris Cleere 2010, SACC 677B DECLINED
PS 5.4 Rufous-naped Nightjar Systellura ruficervix Band-winged Nightjar S. longirostris Cleere 2010, SACC 677B DECLINED
  AS 6.3 Cyprus Scops Owl Otus cyprius Eurasian Scops Owl O. scops Flint et al. 2015
  AS 6.3 Lesser Violetear Colibri cyanotus Mexican [Green] Violetear C. thalassinus Remsen et al. 2015, NACC 2016-C-10
  AS 6.3 Red-backed Flameback Dinopium psarodes Black-rumped Flameback D. benghalense HBW Alive, Fernando et al. 2016; Hybrid zone analysis indicates essential reproductive isolation.
  SSP 6.3 Talaud Pitta Erythropitta inspeculata Philippine [Red-bellied] Pitta E. erythrogaster Irestedt et al. 2013 Collar et al. 2015; H&M4 ssp group 1. Stet ssp of erythrogaster
  SSP 6.3 Sulu Pitta Erythropitta yairocho Philippine [Red-bellied] Pitta E. erythrogaster Irestedt et al. 2013. Stet ssp of erythrogaster
  AS 6.3 Sula Pitta Erythropitta dohertyi Philippine [Red-bellied] Pitta E. erythrogaster Irestedt et al. 2013, Collar et al. 2013; H&M4 ssp group 2.
  AS 6.3 Siao Pitta Erythropitta pallidiceps Philippine [Red-bellied] Pitta E. erythrogaster Irestedt et al. 2013, Collar et al. 2013; H&M4 ssp group 2.
  AS 6.3 Sangihe Pitta Erythropitta caeruleitorques Philippine [Red-bellied] Pitta E. erythrogaster Irestedt et al. 2013, Collar et al. 2013; H&M4 ssp group 2.
  AS 6.3 Sulawesi Pitta Erythropitta celebensis Philippine [Red-bellied] Pitta E. erythrogaster Irestedt et al. 2013, Collar et al. 2013; H&M4 ssp group 2.
  AS 6.3 South Moluccan Pitta Erythropitta rubrinucha Philippine [Red-bellied] Pitta E. erythrogaster Irestedt et al. 2013, Collar et al. 2015. Includes  piroensis. H&M4 ssp group #4.
  SSP 6.3 Seram Pitta Erythropitta piroensis Philippine [Red-bellied] Pitta E. erythrogaster Irestedt et al. 2013. Ssp of  South Moluccan Pitta
  AS 6.3 Louisiade Pitta Erythropitta meeki Philippine [Red-bellied] Pitta E. erythrogaster Irestedt et al. 2013, Collar et al. 2015. H&M4 ssp group #8
  AS 6.3 North Mollucan Pitta Erythropitta rufiventris Philippine [Red-bellied] Pitta E. erythrogaster Irestedt et al. 2013; Collar et al. 2015. Includes cyanonota, bernsteini, [obiensis, inornata]. H&M4 ssp group #3.
  AS 6.3 Bismarck Pitta Erythropitta novaehibernicae Philippine [Red-bellied] Pitta E. erythrogaster Irestedt et al. 2013; includes extima, splendida, gazellae. H&M4 ssp group #7.
SSP 6.3 New Britain Pitta Erythropitta gazellae Philippine [Red-bellied] Pitta E. erythrogaster Irestedt et al. 2013. H&M4 ssp group #7. Ssp of Bismarck Pitta.
SSP 6.3 Tabar Pitta Erythropitta splendida Philippine [Red-bellied] Pitta E. erythrogaster Irestedt et al. 2013. H&M4 subspecies group #7. Ssp of Bismarck Pitta.
  AS 6.3 Papuan Pitta Erythropitta macklotii Philippine [Red-bellied] Pitta E. erythrogaster Irestedt et al. 2013, Collar et al. 2015, Beehler & Pratt 2016). Includes habenichti, finschiiloriae/"oblita", digglesi,[aruensis, kuehni, strenua, yorki]. H&M4 ssp group #5-6
SSP 6.3 Habenicht's Pitta Erythropitta habenichti Philippine [Red-bellied] Pitta E. erythrogaster Irestedt et al. 2013,  Collar et al 2015. Ssp of Papuan Pitta. H&M4 ssp group #6;
SSP 6.3 D'Entrecasteaux Pitta Erythropitta finschii Philippine [Red-bellied] Pitta E. erythrogaster Irestedt et al. 2013. Collar et al 2015.  Ssp of Papuan Pitta. H&M4 ssp group #7,
SSP 6.3 Sao Paulo Antwren Stymphalornis [Formicivora] paludicola Parana [Marsh] Antwren S. acutirostris Buzzetti et al. 2013; SACC 693 3/5; subspecies for now
  AS 6.3 Ayacucho Thistletail Asthenes ayacuchensis Vilcabamba Thistletail A. vilcabambae Hosner et al. 2015; SACC 697:7/0
  AS 6.3 Aceh Bulbul Pycnonotus snouckaerti Orange-spotted Bulbul P. bimaculatus Eaton & Collar 2015
  AS 6.3 Isthmian Wren Cantorchilus elutus Cabanis's [Plain] Wren C. modestus Saucier et al. 2015, NACC 2016-C-14
  AS 6.3 Canebrake Wren Cantorchilus zeledoni Cabanis's [Plain] Wren C. modestus Stiles et al. 1989, Ridgely & Gwynne 1989, AOU 1998, Saucier et al. 2015, NACC 2016-C-14
  AS 6.3 Santa Marta Wood Wren Henicorhina anachoreta Grey-breasted Wood Wren H. leucophrys Caro et al. 2013, SACC 700 7/0; English name provisional
  NEW 6.3 Himalayan Thrush Zoothera salimalii   Alström et al. 2016; ENG  Forest Thrush (Turdus lherminieri)
  AS 6.3 Sichuan Thrush Zoothera griseiceps Alpine [Plain-backed] Thrush Z. mollissima Alström et al. 2016; ENG Forest Thrush (Turdus lherminieri)
SSP 6.3 Grayson's Thrush Turdus graysoni Rufous-backed Thrush T. rufopalliatus Montaño-Rendón et al. 2015. Vocals? Stet subspecies status for now
SSP 6.3 Campina Thrush Turdus arthuri Black-billed Thrush T. ignobilis Cerqueira et al. 2016; stet PS SSP pending resolution of (unsampled) ssp ignobilis and goodfellowi.SACC?
SSP 6.3 Amazonian Thrush Turdus debilis Black-billed Thrush T. ignobilis Cerqueira et al. 2016; stet PS SSP as above. SACC?
SSP 6.3 Lilian's Meadowlark Sturnella lilianae Eastern Meadowlark S. magna Includes auropectoralis and saundersi; NACC 2016-C-2 declined.
  AS 6.3 Gran Canaria Blue Chaffinch Fringilla polatzeki [Tenerife] Blue Chaffinch F. teydea Sangster et al. 2015
  AS 6.2 Sultan's Cuckoo-Dove Macropygia doreya  Amboyna [Slender-billed] Cuckoo-Dove M. amboienensis Ng et al. 2016. Incl albicapilla, albiceps, atrata, sanghirensis, sedecima, balim. English name provisional
  AS 6.2 Enggano Cuckoo-Dove Macropygia cinnamomea Ruddy Cuckoo-Dove M. emiliana Ng et al. 2016. Monotypic
  AS 6.2 Barusan Cuckoo-Dove Macropygia modiglianii Ruddy Cuckoo-Dove M. emiliana Ng et al. 2016. Incl elassa, hypopercna
  AS 6.2 Tanimbar Cuckoo-Dove Macropygia timorlaoensis Timor [Bar-necked] Cuckoo-Dove M. magna Ng et al. 2016. Monotypic
  AS 6.2 Flores Sea Cuckoo-Dove Macropygia macassariensis Timor [Bar-necked] Cuckoo-Dove M. magna Ng et al. 2016. Incl longa
  AS 6.2 Sula Cuckoo-Dove Turacoena sulaensis White-faced [Cuckoo-] Dove T. manadensis Ng & Rheindt 2016
  AS 6.2 Purple-capped Fruit Dove Ptilinopus ponapensis Crimson-crowned Fruit Dove P. porphyraceus Cibois et al. 2014, Hayes et al. 2016
  AS 6.2 Kosrae Fruit Dove Ptilinopus hernsheimi Crimson-crowned Fruit Dove P. porphyraceus Hayes et al. 2016
  AS 6.2 Turquoise-throated Barbet Psilopogon chersonesus Blue-throated Barbet P. asiaticus Sister to P. oorti, den Tex and Leonard 2013, Clements 6.9, HBW Alive
  AS 6.2 Necklaced Barbet Psilopogon auricularis Golden-throated Barbet P. franklinii den Tex and Leonard 2013, HBW Alive
  AS 6.2 Coopmans's Elaenia Elaenia brachyptera Lesser Elaenia E. chiriquensis Rheindt et al 2015; SACC 686
  AS 6.2 Tan-capped Catbird Ailuroedus geislerorum White-eared Catbird A. buccoides Irestedt et al. 2015; includes molestus. English names?
  AS 6.2 Ochre-breasted Catbird Ailuroedus stonii White-eared Catbird A. buccoides Irestedt et al. 2015; includes cinnamomeus. English names?
  AS 6.2 Spotted Catbird Ailuroedus maculosus  Black-eared [Spotted] Catbird A. melanotis Irestedt et al. 2015
  AS 6.2 Black-capped Catbird Ailuroedus melanocephalus Black-eared [Spotted] Catbird A. melanotis Irestedt et al. 2015
  AS 6.2 Huon Catbird Ailuroedus astigmaticus Black-eared [Spotted] Catbird A. melanotis Irestedt et al. 2015
  AS 6.2 Arfak Catbird Ailuroedus arfakianus Black-eared [Spotted] Catbird A. melanotis Irestedt et al. 2015; includes misoliensis.
  AS 6.2 Northern Catbird Ailuroedus jobiensis Black-eared [Spotted] Catbird A. melanotis Irestedt et al. 2015; includes guttaticollis
  AS 6.2 Temotu Whistler Pachycephala vanikorensis Fiji Whistler P. vitiensis Includes ornata and  utupae, as well as vanikorensis [from Melanesian Whistler Pachycephala chlorura](Andersen et al. 2014, Jønsson et al. 2014). Temotu is the local name of the [Santa Cruz] islands and the current and official name of that province in the Solomon Islands
  AS 6.2 Grey-brown White-eye Zosterops ponapensis Kosrae [Grey-brown] White-eye Z. cinereus Hayes et al. 2016;  English name Grey-brown White-eye appropriate to and established for ponapensis. Rename Z. cinereus 'Kosrae White-eye' (D. Pratt)
  AS 6.2 Dark-eyed White-eye Zosterops tetiparius Solomons White-eye Z. kulambangrae Includes paradoxus (Moyle et al. 2009, H&M4, but also see H&M4: 644, Mees 1955 re use of rendovae)
  AS 6.2 Forest White-eye Zosterops stenocricotus African Yellow White-eye Z. senegalensis Vocally distinct sister to (Speirops) brunneus on Bioko Is; not a member of the  senegalensis cryptic species complex (Fry et al. 2000, Cox 2013, Cox et al. 2014). English name ok?
SSP 6.2 Taiwan Thrush Turdus niveiceps Island Thrush T. poliocephalus Nylander et al. 2008, H&M4; stet ssp status for now
SSP 6.2 Yunnan Parrotbill Sinosuthora ricketti Brown-winged Parrotbill S. brunnea Deignan 1964, Robson 2007, Penhallurick & Robson 2009, Yeung et al. 2011. STET subspecies pending further research
SSP+ 6.2 Grass Wren Cistothorus elegans Grass Wren C. platensis Robbins and Nyári 2014.  Includes tinnulus, potosinus, jalapensis, warneri, russelli, graberi, and lucidus.
SSP+ 6.2 Austral Wren Cistothorus hornensis Grass Wren C. platensis Robbins and Nyári 2014.  Includes falklandicus
SSP+ 6.2 Tucuman Wren Cistothorus tucumanus Grass Wren C. platensis Robbins and Nyári 2014.  Includes boliviae
SSP+ 6.2 Puna Wren Cistothorus minimus Grass Wren C. platensis Robbins and Nyári 2014.
SSP+ 6.2 Junin Wren Cistothorus graminicola Grass Wren C. platensis Robbins and Nyári 2014.
SSP+ 6.2 Paramo Wren Cistothorus aequatorialis Grass Wren C. platensis Robbins and Nyári 2014. Includes tamaetolimae
SSP+ 6.2 Venezuelan Wren Cistothorus alticola Grass Wren C. platensis  Robbins and Nyári 2014.
NEW 6.2 Ibera Seedeater Sporophila iberaensis Di Giacomo & Kopuchian 2016; SACC proposal badly needed. Appropriate scientific name remains unsettled (SACC Thraupidae Footnote 116).
  AS 6.1 Tschudi's Nightjar Systellura decussata Band-winged Nightjar S. longirostris Cleere 2010, SACC 677A 10/0; English name=Desert Nightjar? Genus?
  NEW 6.1 Western Striolated Puffbird Nystalus obamai Eastern Striolated Puffbird N. striolatus Whitney et al. 2013e, SACC 617, 679, 701.
SSP 6.1 Pacific Fulmar Fulmarus rodgersii Northern Fulmar F. glacialis Stet subspecies; see Kerr & Dove 2013 for PS status of F. rodgersii
SSP 6.1 Northern Silvery Grebe Podiceps juninensis [Southern] Silvery Grebe P. occipitalis Stet subspecies pending better contact zone info (Fjeldså & Krabbe 1990, Jaramillo 2003, Del Hoyo & Collar 2014, Ogawa et al. 2015).
SSP 6.1 Eastern Striolated Puffbird Nystalus torridus [Natterer's] Striolated Puffbird N. striolatus SACC 617 declined; stet as subspecies of N. striolatus pending completion of SACC 679 discussion
SSP 6.1 Mallee Whipbird Psophodes leucogaster Western Whipbird P. nigrogularis Schodde & Mason 1999, Christidis & Boles 2008, Toon et al. 2013; await full study
SSP 6.1 Western Subalpine Warbler Sylvia inornata [Eastern] Subalpine Warbler P. cantillans Svensson 2013ab; includes new ssp iberiae. Await revision of species complex.
SSP 6.1 Santa Marta Wood Wren Henicorhina anachoreta Grey-breasted Wood Wren H. leucophrys Stet subspecies status pending review of species complex. See Caro et al. 2013)
  AS 6.1 Sedge Wren Cistothorus stellaris Grass [Sedge] Wren C. platensis Robbins and Nyári 2014;  Middle and South American members of this species complex await revision.
SSP 6.1 'Okinawa Flycatcher' Ficedula owstoni Narcissus Flycatcher F. narcissina Dong et al. 2015. English name under discussion. Await data on additional populations
  AS 6.1 Bundok Flycatcher Fidecula luzoniensis Snowy-browed Flycatcher F. hyperythra Philippine populations of Snowy-browed Flycatcher are members of a different species clade (Moyle et al. 2015, Clements et al. 2015).
SSP 6.1 Visayan Shama Copsychus superciliarus White-browed Shama C. luzoniensis Lim et al. 2010, Collar 2011b, not H&M4 nor HBW. Stet ssp
  AS 6.1 Merida Brush Finch Atlapetes meridae Moustached Brush Finch A. albofrenatus Donegan et al. 2014
SSP 6.1 Cayman Bullfinch Melopyrrha taylori Cuban Bullfinch M. nigra Bradley 2000, H&M4, Garrido et al. 2014; NACC 2016-A-5.