Worldbirdnames.org

Updates: Candidates

This page is 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) will be added to the World List. Others will be retained as active candidates or deleted (DEL) with the option of future reconsideration.

Category	Suggested English Name	Scientific Name	Proposed Split From		Source
PS	Southern Ostrich	Struthio australis	Common Ostrich	S. camelus	Miller et al 2010
AS 2.10	Sira Curassow	Pauxi koepckeae	Horned Curassow	P. unicornis	Gastañaga, MacLeod, Brooks & Hennessey 2011; long awaited split
PS	Archer’s Francolin	Scleroptila lorti	Orange River Francolin	S. levaillantoides	Distinct genetics and morphology (Mandiwana-Neudani et al MS, Crowe, Bowie comm); await publication
AS 2.4	Rubeho Forest Partridge	Xenoperdix obscurata	Udzungwa Forest Partridge	X. udzungwensis	Bowie & Fjeldså 2005
AS 2.3	Hainan Peacock-Pheasant	Polyplectron katsumatae	Grey Peacock-Pheasant	P. bicalcaratum	Chang et al. 2008
PS	Malay Argus	Rheinardia nigrescens	Crested Argus	R. ocellata	Sibley and Monroe 1990, Rheindt 2009 (good, needs documentation)
PS 2.9	Middendorf's [Bean] Goose	Anser middendorfii	Taiga [Bean] Goose	A. fabalis	Ruokonen, M, Litvin, K, Aarvak, T, 2008, Ruokonen & Aarvak 2011
PS	Pacific Eider	Somateria v-nigrum	Common Eider	S. mollissima	Livezey 1995, Garner & Millington 2010
AS 2.4	Desertas Petrel	Pterodroma deserta	Fea's Petrel	P. feae	Robb and Mullarney 2008, Jesus et al. 2009
PS 3.0	Grey-faced Petrel	Pterodroma gouldi	Great-winged Petrel	P. macroptera	Onley & Scofield 2007, Howell 2012
PS 3.0	Scopoli's Shearwater	Calonectris diomedea	Cory's Shearwater	C. [diomedea] borealis	Robb and Mullarney 2008, Howell 2012
AS 2.8	Boyd's Shearwater	Puffinus boydi	Macaronesian Shearwater	P. baroli	Robb and Mullarney 2008, Olson 2010, BOU
NEW 2.10	Bryan's Shearwater	Puffinus bryani			Pyle et al 2011
PS	Mediterranean Storm Petrel	Hydrobates melitensis	European Storm Petrel	H. pelagicus	Robb and Mullarney 2008
PS 2.9	Ainley's Storm Petrel	Oceanodroma cheimomnestes	Leach's Storm Petrel	O. leucorhoa	Howell et al 2009, Howell 2012
PS 2.9	Townsend's Storm Petrel	Oceanodroma socorroensis	Leach's Storm Petrel	O. leucorhoa	Howell et all 009, Howell 2012
PS 2.9	Grant's Storm Petrel	Oceanodroma sp nov	Band-rumped Storm Petrel	O. castro	Robb and Mullarney 2008, Howell et al 2010, Howell 2012
AS 2.3	Cape Verde Storm Petrel	Oceanodroma jabejabe	Band-rumped Storm Petrel	O. castro	Bolton 2007, Howell 2012
PS 2.10	Andean Ibis	Theristicus branickii	Black-faced Ibis	T. melanopis	Collar & Bird 2011
AS 2.7	Tricolored Grebe	Tachybaptus tricolor	Little Grebe	T. ruficollis	Mlíkovský 2010
AS 2.8	South Georgia Shag	Leucocarbo georgianus	Imperial Shag	L. [atriceps] atriceps	Orta 1992, Jaramillo 2003, HANZAB, Penhallurick, HBW, cf Dickinson 2003
AS 2.8	Antarctic Shag	Leucocarbo bransfieldensis	Imperial Shag	L. [atriceps] atriceps	Orta 1992, Jaramillo 2003, HANZAB, Penhallurick, HBW, cf Dickinson 2003
AS 2.8	Heard Shag	Leucocarbo nivalis	Imperial Shag	L. [atriceps] atriceps	Orta 1992, Jaramillo 2003, HANZAB, Penhallurick, HBW, cf Dickinson 2003
AS 2.8	Crozet Shag	Leucocarbo melanogenis	King Shag	L. [atriceps] albiventer	Orta 1992, Jaramillo 2003, HANZAB, Penhallurick, HBW, cf Dickinson 2003
AS 2.8	Macquarie Shag	Leucocarbo purpurascens	King Shag	L. [atriceps] albiventer	Orta 1992, Jaramillo 2003, HANZAB, Penhallurick, HBW, cf Dickinson 2003
AS 2.7	Yellow-billed Kite	Milvus aegyptius	Black Kite	M. migrans	Johnson et al. 2005, IOC advisors' consensus
AS 2.10	Northern Harrier	Circus hudsonius	Hen [Northern] Harrier	C. cyaneus	Dobson & Clarke 2011
PS 2.9	Grey Hawk	Buteo plagiatus	Grey-lined [Grey] Hawk	B. nitidus	Sibley & Monroe 1993, Millsap et al 2011, NACC 2011-A-4
AS 2.7	Archer's Buzzard	Buteo archeri	Augur Buzzard	B. augur	Riesing et al 2003, HBW 2, Redman et al 2009
AS 2.7	Socotra Buzzard	Buteo socotraensis	Common Buzzard	B. buteo	Porter & Kirwan 2010; relationships?
AS 2.10	Cape Verde Buzzard	Buteo bannermani	Common Buzzard	B. buteo	Clouet & Wink 2000; closest to Long-tailed Buzzard
AS 2.4	Pinsker's Hawk-Eagle	Nisaetus pinskeri	Philippine Hawk-Eagle	N. philippensis	Haring et al. 2007, Gamauf et al. 2005ab
DEL 2.11	Changeable Hawk-Eagle	Nisaetus limnaeetus	Crested Hawk-Eagle	N. cirrhatus	Rasmussen and Anderton 2005, Ferguson-Lees and Christie 2005; cf HBW 2, Gamauf et al 2005ab. Molecular data weak to non informative. Revisit with better data. Change English name of cirrhatus to Changeable Hawk-Eagle.
AS 2.5	Common Gallinule	Gallinula galeata	Common Moorhen	G. chloropus	Groenenberg et al 2008, SACC 416
AS 2.9	Tsingy Wood Rail	Canirallus beankaensis	Madagascar Wood Rail	C.kioloides	Goodman et al 2011
DEL 2.11	White-faced Plover	Charadrius dealbatus	Kentish Plover	C. alexandrinus	Kennerley et al 2008, but see Rheindt et al 2011 re ssp
PS 2.10	Hudsonian Whimbrel	Numenius hudsonicus	(Eurasian) Whimbrel	N. phaeopus	Sangster et al 2011
PS 2.10	Scripps's Murrelet	Synthliboramphus scrippsi	Xantus's Murrelet	S. hypoleucus	Sibley and Monroe 1993, Nettleship 1996, Birt et al 2011 (Auk ms)
PS 2.10	Philippine Collared Dove	Streptopelia dusumieri	Island Collared Dove	S. bitorquata	Collar 2011
AS 2.4	Brown Cuckoo-Dove	Macropygia phasianella	Slender-billed Cuckoo-Dove	M. amboinensis	HBW 4, Sibley & Monroe 1990
AS 2.9	Black-banded Fruit Dove	Ptilinopus alligator	Banded Fruit Dove	P. cinctus	Mixed history. Christidis & Boles 2008 treat as ssp of cinctus following Schodde, Dickinson, but preview species status. HBW 4 recognizes as Black-backed Fruit Dove
AS 2.10	Oberholser's Fruit Dove	Ptilinopus epius	Maroon-chinned Fruit Dove	Ptilinopus subgularis	Rheindt et al 2011
AS 2.10	Sula Fruit Dove	Ptilinopus mangoliensis	Maroon-chinned Fruit Dove	Ptilinopus subgularis	Rheindt et al 2011
AS 2.7	Western Ground Parrot	Pezoporus flaviventris	[Eastern] Ground Parrot	P. wallicus	Murphy et al 2010
PS 2.9	Timneh Grey Parrot	Psittacus timneh	[African] Grey Parrot	P. erithacus	BLI 4
PS 2.11	Cliff Parakeet	Myiopsitta luchsi	Monk Parakeet	M. monacha	Collar 1997; Russello et al. 2008, SACC 93 & 503
AS 2.4	Tres Marias Amazon	Amazona tresmariae	Yellow-headed Amazon	A. oratrix	Navarro-Sigüenza & Peterson 2004, Eberhard & Birmingham 2004
AS 2.7	Burchell's Coucal	Centropus burchellii	White-browed Coucal	C. superciliosus	Roberts, 7th ed, reinstate contra Payne 2005
PS	Green Brush Cuckoo	Cacomantis virescens	Rusty-breasted Cuckoo	C. sepulcralis	Payne MS
PS	Bronze Brush Cuckoo	Cacomantis aeruginosus	Rusty-breasted Cuckoo	C. sepulcralis	Payne MS
AS 2.7	Socotra Scops Owl	Otus socotranus	Oriental Scops Owl?	O. sunia	Redman et al 2009, Porter and Aspinall 2010
AS 2.10	Everett's Scops Owl	Otus everetti	Philippine Scops Owl	O. megalotis	Miranda et al 2011; English name from Sibley & Monroe 1993
AS 2.10	Negros Scops Owl	Otus nigrorum	Philippine Scops Owl	O. megalotis	Miranda et al 2011; English name from Sibley & Monroe 1993
PS	Chestnut Owlet	Glaucidium castaneum	African Barred Owlet	G. capense	HBW 5, König & Becking 2009
PS	Etchecopar's Owlet	Glaucidium etchecopari	African Barred Owlet	G. capense	König & Weick 2009
PS	Cape Pygmy Owl	Glaucidium hoskinsii	Mountain Pygmy Owl	G. gnoma	Howell and Webb 1995, König et al. 1999
AS 2.11	Guatemalan Pygmy Owl	Glaucidium cobanense	Mountain Pygmy Owl	G. gnoma	Holt et al 1999 (HBW 5), König & Weick 2008, Howell & Eisermann 2011, Eisermann & Howell in press
AS 2.10	Mexican Barred Owl	Strix sartorii	(Northern) Barred Owl	S. varia	Barrowclough et al 2011
AS 2.4	Northern Boobook	Ninox japonica	Brown Hawk-Owl	N. scutulata	King 2002
AS 2.4	Chocolate Boobook	Ninox randi	Brown Hawk-Owl	N. scutulata	King 2002
AS 2.6	Blyth's Frogmouth	Batrachostomus affinis	Javan Frogmouth	B. javensis	Cleere 2010; Long standing grey literature split (F. Rheindt July 2010)
AS 2.6	Palawan Frogmouth	Batrachostomus chaseni	Javan Frogmouth	B. javensis	Cleere 2010; Long standing grey literature split (F. Rheindt July 2010)
PS 2.9	Solomons Nightjar	Eurostopodus nigripennis	White-throated Nightjar	E. mystacalis	Cleere 2010, Dutson in press (BBOC)
PS 2.9	New Caledonian Nightjar	Eurostopodus exul	White-throated Nightjar	E. mystacalis	Cleere 2010
PS	Tepui Nightjar	Caprimulgus roraimae	Band-winged Nightjar	A. longirostris	Cleere 2010, SACC?
PS	Tschudi's Nightjar	Caprimulgus decussatus	Band-winged Nightjar	A. longirostris	Cleere 2010, SACC?
PS	Palau Nightjar	Caprimulgus phalaena	Indian Jungle Nightjar	C. indicus	Cleere 2010
AS 2.6	Mexican Whip-poor-will	Caprimulgus arizonae	[Eastern] Whip-poor-will	C. vociferus	AOU 2009-D-12
AS 2.6	Vogelkop Owlet-nightjar	Aegotheles affinis	Barred Owlet-nightjar	A. bennettii	Dumbacher et al 2003; Cleere 2010; T.Pratt, F. Rheindt in litt 2010
AS 2.10	Salim Ali's Swift	Apus salimalii	Pacific (Fork-tailed) Swift	A. pacificus	Leader 2011
AS 2.10	Blyth's Swift	Apus leuconyx	Pacific (Fork-tailed) Swift	A. pacificus	Leader 2011
AS 2.10	Cook's Swift	Apus cooki	Pacific (Fork-tailed) Swift	A. pacificus	Leader 2011
AS 2.8	Wedge-tailed Sabrewing	Campylopterus pampa	Curve-winged [Wedge-tailed] Sabrewing	C. curvipennis	Peterson & Navarro-Sigüenza 2009, Gonzalez et al 2011
NEW 2.7	Tapajos Hermit	Phaethornis aethopyga	Black-throated Hermit	P. atrimentalis	Piacentini et al 2009, SACC 442; a very distinct species, not a hybrid
PS 2.9	Jalapa (Orange-bellied) Trogon	Trogon puella	Collared Trogon	T. collaris	DaCosta & Klicka 2008; either lump puella and aurantiiventris with collaris, or split puella (incl aurantiiventris) from collaris. Not current AOU treatment which recognizes T. aurantiiventris as a separate species and lumps puella with collaris.
AS 2.7	Amazonian Trogon	Trogon ramonianus	Guianan [Violaceous] Trogon	T. violaceus	SACC 430 passed;
PS	Palau Kingfisher	Todiramphus pelewensis	Micronesian Kingfisher	T.cinnamominus	Pratt & Etpison 2008, Pratt and Bruner (ms), Dylan Kesler and Sue Haig (ms)
PS	Pohnpei Kingfisher	Todiramphus reichenbachii	Micronesian Kingfisher	T.cinnamominus	Pratt & Etpison 2008, Pratt and Bruner (ms), Dylan Kesler and Sue Haig (ms)
PS 2.10	White-throated Kingfisher	Halcyon gularis	White-breasted [White-throated] Kingfisher	H. smyrnensis	Collar 2011
PS 2.10	Northern Silvery Kingfisher	Alcedo flumenicola	(??) Silvery Kingfisher	A. argentatus	Collar 2011
PS 2.10	Rufous-crowned Bee-eater	Merops americanus	Blue-throated Bee-eater	M. viridis	Collar 2011
AS 2.9	Blue-moustached Bee-eater	Merops mentalis	Blue-headed Bee-eater	M. muelleri	Marks et al 2007, BLI v4
AS 2.5	Blue-crowned Motmot	Momotus coeruliceps	Blue-crowned Motmot	M. momota	Navarro-Sigüenza & Peterson 2004, Stiles 2009
AS 2.5	Blue-diademed Motmot	Momotus lessoni	Blue-crowned Motmot	M. momota	Stiles 2009
AS 2.5	Whooping Motmot	Momotus subrufescens	Blue-crowned Motmot	M. momota	Stiles 2009
AS 2.5	Trinidad Motmot	Momotus bahamensis	Blue-crowned Motmot	M. momota	Stiles 2009
AS 2.4	Indochinese Barbet	Megalaima annamensis	Black-browed Barbet	M. oorti	Collar 2006b, Finestein et al. 2008
AS 2.9	Whiteley's Toucanet	Aulacorhynchus whitelianus	Chestnut-tipped Toucanet	A. derbianus	includes duidae, osgoodi; resurrects Cory species lumped by Peters (Bonaccorso et al 2011)
PS	[Baja Woodpecker]	Melanerpes angustifrons	Acorn Woodpecker	M. formicivorus	Navarro-Sigüenza & Peterson 2004, Honey-Escandón et al 2008
AS 2.4	Melancholy Woodpecker	Dendropicos lugubris	Gabon Woodpecker	D. gabonensis	HBW 7, Sibley and Monroe 1990
AS 2.4	Eastern Grey Woodpecker	Dendropicos spodocephalus	African Grey Woodpecker	D. goertae	HBW 7, Redman et al 2009; Grey-headed Woodpecker is preoccuped by Picus canus
AS 2.9	Bronze-winged Woodpecker	Colaptes aeruginosus	Golden-olive Woodpecker	C. [Piculus] rubiginosus	C. aeruginosus, currently a ssp of C. rubiginosus, is actually sister to C.auricularis; rubiginosus is sister to C. atricollis (Moore et al 2010)
PS 2.10	Southern Sooty Woodpecker	Mulleripicus fuliginosus	Northern?? Sooty Woodpecker	M. fuliginosus	Collar 2011
DEL 2.11	Ochre-backed Woodpecker	Celeus ochraceus	Blond-crested Woodpecker	C. flavescens	Benz & Robbins 2011; resolve status of intermediate ssp intercedens
PS 2.11	Iberian Green Woodpecker	Picus sharpei	European Green Woodpecker	P. viridus	Perktas et al 2011
PS 2.11	Zagros Green Woodpecker	Picus innominatus	European Green Woodpecker	P. viridus	Perktas et al 2011
AS 2.11	Luzon Flameback	Chrysocolaptes haematribon	Buff-spotted [Greater] Flameback	C. lucidus	Mees 1966, Collar 2011
AS 2.11	Yellow-faced Flameback	Chrysocolaptes xanthocephalus	Buff-spotted [Greater] Flameback	C. lucidus	Mees 1966, Collar 2011
AS 2.11	Red-headed Flameback	Chrysocolaptes erythrocephalus	Buff-spotted [Greater] Flameback	C. lucidus	Mees 1966, Collar 2011
AS 2.11	Javan Flameback	Chrysocolaptes strictus	Buff-spotted [Greater] Flameback	C. lucidus	Mees 1966, Collar 2011
AS 2.11	Greater Flameback	Chrysocolaptes guttacristatus	Buff-spotted [Greater] Flameback	C. lucidus	Mees 1966, Collar 2011
PS	Two-banded Puffbird	Hypnelus bicinctus	Russet-throated Puffbird	H. ruficollis	Rasmussen and Collar 2002; SACC proposal needed
AS 2.1	Chaco Puffbird	Nystalus striatipectus	Caatinga Puffbird	N. maculatus	Silva 1991
AS 2.6	Malayan Banded Pitta	Hydrornis [Pitta] irena	[Javan] Banded Pitta	H. guajanus	Rheindt & Eaton 2010
AS 2.6	Bornean Banded Pitta	Hydrornis [Pitta] schwaneri	[Javan] Banded Pitta	H. guajanus	Rheindt & Eaton 2010
PS 2.10	Palkachupa Cotinga	Phibalura boliviana	Swallow-tailed Cotinga	P. flavirostris	Brumfield et al 2004, Hennessey 2011, SACC 494
PS	White-tailed Tityra	Tityra leucura	Black-crowned Tityra	T. inquisitor	Whittaker 2008: SACC needs proposal badly
PS 2.11	Thrush-like Manakins	Schiffornis spp	Thrush-like Manakin	Schiffornis turdina	SACC 505; multiple splits under discussion
PS	White-fronted Tyrannulet	Phyllomyias leucogonys	White-fronted (Zeledon's) Tyrannulet	P. zeledoni	Stiles and Skutch 1989; SACC needs proposal
PS 2.9	Chilean? Elaenia	Elaenia chilensis	White-crested Elaenia	E. albiceps	Rheindt et al 2009, SACC - proposal badly needed
PS 2.9	Roraiman Elaenia	Elaenia olivina	Sierran Elaenia	E. pallatangae	Rheindt et al 2008 genetic data indicates that olivina is not closely related to pallatangae
PS 2.9	Name? Elaenia	Elaenia sordida	Highland Elaenia	E. obscura	Rheindt et al 2008 genetic data indicate deep divergence
AS 2.5	Straneck's Tyrannulet	Serpophaga griseicapilla	White-bellied Tyrannulet	S. munda	Straneck 2007, SACC 419
AS 2.5	Ticking Doradito	Pseudocolopteryx citreola	Warbling Dorito	P. flaviventris	Abalos and Areta 2009, SACC 420
PS	Puerto Rican Kingbird	Tyrannus taylori	Loggerhead Kingbird	T. caudifasciatus	Garrido et al 2009
PS	Hispaniolan Kingbird	Tyrannus gabbii	Loggerhead Kingbird	T. caudifasciatus	Garrido et al 2009
PS	?? Streaked Flycatcher	Myiodynastes solitarius	Streaked Flycatcher	M.maculatus	Jaramillo et al 2010
AS 2.10	Magdalena Antbird	Myrmeciza palliata	Dull-mantled Antbird	M. laemossticta	Chaves et al 2010, SACC 475
AS 2.9	Xingu Scale-backed Antbird	Willisornis vidua	[Common] Scale-backed Antbird	W.poecilinotus	Isler & Whitney 2011
AS 2.4	Paramo Tapaculo	Scytalopus opacus	Paramillo Tapaculo	S. canus	Krabbe & Cadena 2010
NEW 2.7	Rock Tapaculo	Scytalopus petrophilus			Whitney et al 2010, SACC 463
NEW 2.10	Urrao Antpitta	Grallaria urraoensis			Barrera et al. 2010, Carantón-Ayala and Certuche-Cubillos 2010, Cadena & Stiles 2010. SACC 479
AS 2.6	Sucre Antpitta	Grallaricula cumanensis	Slaty-crowned Antpitta	G. nana	Donegan 2008; SACC 421A
PS	Guianan Antpitta	Grallaricula kukenamensis	Slaty-crowned Antpitta	G. nana	Donegan 2008; probably good but SACC 421B requests more vocal data to recognize
AS 2.2	Santa Marta Foliage-gleaner	Automolus rufipectus	Ruddy Foliage-gleaner	A. rubiginosus	Krabbe 2008, SACC accepted June 2009
PS	Mallee Whipbird	Psophodes leucogaster	Western Whipbird	P. nigrogularis	Christidis & Boles 2008
PS	West African Batis	Batis occulta	Fernando Po Batis	B. poensis	Sibley and Monroe 1990; genetic analysis underway (Bowie)
PS	Dimorphic? Batis	Batis dimorpha	Cape Batis	B. capensis	Fjeldså, Bowie unpubl
PS	West African Wattle-eye	Platysteira hormomorpha	Chestnut Wattle-eye	P. castanea	Njabo et al. 2008
AS 3.0	Western Quail-thrush	Cinclosoma marginatum	Chestnut-breasted Quail-thrush	C. castaneothorax	Toon et al 2012; also a new population of Spotted Quail-thrush in N Qld
AS 3.0	Nullarbor Quail-thrush	Cinclosoma alisteri	Cinnamon Quail-thrush	C. cinnamomeum	Toon et al 2012
PS	Anchieta's Tchagra	Bocagia anchietae	Marsh Tchagra	B. minuta	Bowie et al 2005
AS 2.4	Tropical Boubou	Laniarius major	Ethiopian Boubou	L. aethiopicus	Nguembock et al. 2008
PS 2.10	Silver-backed Butcherbird	Cracticus argenteus	Grey Butcherbird	C. torquatus	Schodde & Mason 1999; Kearns et al MS, cf Christidis & Boles 2008
PS	Northern Shriketit	Falcunculus whitei	Crested Shriketit	F. frontatus	Schodde and Mason 1999; cf Christidis & Boles 2008
PS	Western Shriketit	Falcunculus leucogaster	Crested Shriketit	F. frontatus	Schodde and Mason 1999; cf Christidis & Boles 2008
PS	Grey-headed Whistler	Pachycephala griseiceps	Grey Whistler	P. simplex	HBW 12, cf Christidis & Boles 2008
PS 2.10	New Caledonian Whistler	Pachycephala caledonica	Melanesian Whisstler	P. (caledonica) chlorura	Mayr 1967, Sibley & Monroe 1990, Boles HBW 12 , Dutson in press
PS 2.9	Tibetan Grey Shrike or Giant Shrike	Lanius giganteus	Chinese Grey Shrike	L. sphenocercus	Svensson et al 2009, Olsson et al 2010, Panov et al 2011
PS	Northern Grey Shrike	Lanius borealis	Great Grey Shrike	L. excubitor	Olsson et al 2009, Svensson et al 2009
AS 2.9	Northern Fiscal	Lanius humeralis	Southern (Common) Fiscal	L. collaris	Fuchs et al 2011
AS 2.4	Sumatran Drongo	Dicrurus sumatranus	Hair-crested Drongo	D. hottentottus	Sibley & Monroe 1990, King1997
AS 2.4	Wallacean Drongo	Dicrurus densus	Hair-crested Drongo	D. hottentottus	Sibley & Monroe 1990, King 1997
AS 2.10	Tablas Drongo	Dicrurus menagei	Hair-crested Drongo	D. hottentottus	Allen 2006, Rocamora & Yeatman-Berthelot 2009, BLI 4,.Good split. Rheindt & Hutchinson (2007 Birding Asia) , Rheindt et al (2010 Bull BOC); full revision of hottentattus complex needed
PS	Principe Drongo	Dicrurus modestus	Velvet-mantled Drongo	D. [modestus] coracinus	Requires revision of modestus species complex
PS 2.11	Tablas Fantail	Rhipidura sauli	Blue-headed Fantail	R. cyaniceps	Sánchez-González & Moyle 2011
PS 2.11	Visayan Fantail	Rhipidura albiventris	Blue-headed Fantail	R. cyaniceps	Sánchez-González & Moyle 2011
PS 2.11	Visayan Blue Fantail	Rhipidura samarensis	[Mindanao] Blue Fantail	R. superciliaris	Sánchez-González & Moyle 2011
PS 2.11	Philippine Pied Fantail	Rhipidura nigritorquis	[Malaysian] Pied Fantail	R. javanica	Sánchez-González & Moyle 2011
PS	Pale-blue Monarch	Hypothymis puella	Black-naped Monarch	H. azurea	King 1997, HBW 11, more data needed
PS	Loetoe Monarch	Carterornis (Monarcha) castus	White-naped Monarch	C. pileatus	King 1997, BLI 1.0; cf Dickinson 2003, HBW 11
AS 2.11	Bornean Green Magpie	Cissa jefferyi	Javan (Short-tailed) Green Magpie	C. thalassina	Madge 2009 (HBW 14), Van Balen et al 2011
AS 2.9	Mexican Jay	Aphelocoma wollweberi	Transvolcanic [Mexican] Jay	A. ultramarina	Navarro-Sigüenza & Peterson 2004, McCormack et al 2008,NACC 2010-B-12
AS 2.5	Woodhouse's Scrub Jay	Aphelocoma woodhouseii	Western Scrub Jay	A. californica	Delaney et al. 2008,AOU proposal 2009-A-02 split vote (7 Yes/5 No)
PS	Sumichrast's Scrub Jay	Aphelocoma sumichrasti	Woodhouse's Scrub Jay	A. woodhouseii	Delaney et al. 2008, AOU proposal 2009-A-02 split vote (5/7) with request for study of minor contact zone
PS	Oriental Crow	Corvus orientalis	Carrion Crow	C. corone	Haring et al. 2007; probably good, but await vocals etc
PS	Black Sawwing	Psalidoprocne holomelas	Blue Sawwing	P. pristoptera	Roberts, 7th ed; await full revision of sawwing complex (Ryan 2010)
PS	Eastern Sawwing	Psalidoprocne orientalis	Blue Sawwing	P. pristoptera	Roberts, 7th ed; await full revision of sawwing complex (Ryan 2010)
PS 2.9	Ridgway's Swallow	Stelgidopteryx ridgwayi	Northern Rough-winged Swallow	S. serripennis	Navarro-Sigüenza & Peterson 2004, Babin 2005. Larger, darker w whitish supraloral spots and black undertai coverts; sympatric w Northern Roughwings
AS 2.9	Montane Tiny Greenbul	Phyllastrephus albigula	Tiny Greenbul	P. debilis	Fuchs et al 2011
AS 2.6	Ashy-fronted Bulbul	Pycnonotus cinereifrons	Olive-winged Bulbul	P. plumosus	Oliveros and Moyle 2010
AS 2.6	Palawan Bulbul	Alophoixus frater	Grey-cheeked Bulbul	A. bres	Oliveros and Moyle 2010
AS 2.6	Mindoro Bulbul	Hypsipetes [Ixos] mindorensis	Philippine Bulbul	H. [Ixos] philippinus	Oliveros and Moyle 2010
AS 2.6	Visayan Bulbul	Hypsipetes [Ixos] guimarasensis	Philippine Bulbul	H. [Ixos] philippinus	Oliveros and Moyle 2010
AS 2.10	Moheli Bulbul	Hypsipetes moheliensis	Grande Comoro (Comoros) Bulbul	H.parvirostris	Warren et al 2005, Clements 6.6
AS 2.11	Chinese Grassbird	Graminicola striatus	Indian [Rufous-rumped] Grassbird	G. bengalensis	Leader et al 2010
AS 2.4	Rubeho Warbler	Scepomycter rubehoensis	Winifred's Warbler	S. winifredae	Bowie, Fjeldså & Kiure 2009
AS 2.9	Sakhalin Grasshopper Warbler	Locustella amnicola	Gray's Grasshopper Warbler	L. fasciolata	King 1997; Drovetski et al 2004; Alstrom et al 2011, OBC; cf Dickinson 2003, HBW 11 w comments.
AS 2.10	Saipan Reed Warbler	Acrocephalus hiwae	Nightingale Reed Warbler	A. luscinius	Cibois et al 2011
AS 2.10	Pagan Reed Warbler	Acrocephalus yamashinae	Nightingale Reed Warbler	A. luscinius	Cibois et al 2011
PS 2.11	Nihoa Millerbird	Acrocephalus kingi	[Laysan] Millerbird	A. familiaris	Olson 1996, Pratt and Pratt 2001
PS 2.9	Siberian Chiffchaff	Phylloscopus tristis	Common Chiffchaff	P. collybita	McGeehan 2011
PS 2.9	Margelanic Whitethroat	Sylvia margelanica	Desert Whitethroat	S. minula	Shirihai et al 2001 treat as allospecies comparable to Desert and Hume's {Mountain) Whitethroats; Parkin & Knox 2010 don't recognize; STET
AS 2.6	Himalayan Shrike-babbler	Pteruthius ripleyi	White-browed Shrike-babbler	P. flaviscapis	Rheindt & Eaton 2009
AS 2.6	Dalat Shrike-babbler	Pteruthius annamensis	White-browed Shrike-babbler	P. flaviscapis	Rheindt & Eaton 2009
AS 2.6	Blyth’s Shrike-babbler	Pteruthius aeralatus	White-browed Shrike-babbler	P. flaviscapis	Rheindt & Eaton 2009
AS 2.6	Clicking Shrike-babbler	Pteruthius intermedius	Chestnut-fronted Shrike-babbler	P. aenobarbus	Rheindt & Eaton 2009
PS 2.9	Forest White-eye	Zosterops stenocricotus	African Yellow White-eye	Z. senegalensis	A vocally distinct member of the senegalensis species complex (Borrow, Christy); unrelated to senegalensis in phylogeny of Melo et al 2011.
AS 2.9	Sao Tome White-eye	Zosterops feae	Principe White-eye	Z. ficedulinus	Phylogeny with respect to ficedulinus (and griseovirescens) and sister relation to Speirops spp (Melo et al 2011)
PS	Tenerife Goldcrest	Regulus teneriffae	Goldcrest	R. regulus	Clarke 2006, Clements 2008, Dutch Checklist Comm
PS 2.11	Canebrake Wren	Cantorchilus zeledoni	Plain Wren	P. modestus	Distinct ssp awaiting elevation of status (IBC, Stiles et al 1989, Ridgely & Gwynne 1989, AOU 1998)
AS 2.5	Pacific Wren	Troglodytes pacificus	Winter Wren	T. hiemalis	Toews and Irwin 2008; AOU 2009-A-03
AS 2.5	Winter Wren	Troglodytes hiemalis	Eurasian Wren	T. troglodytes	AOU 2009-E-1
PS	African Spotted Creeper	Salpornis salvadori	[Indian] Spotted Creeper	S. spilonotus	Tietze & Mertens 2010
PS 2.10	Visayan Rhabdornis	Rhabdornis rabori	Stripe-breasted Rhabdornis	R. inornatus	Collar 2011
AS 2.4	Usambara Thrush	Turdus roehli	Olive Thrush	T. olivaceus	Bowie et al 2005
AS 2.4	Madagascar Stonechat	Saxicola sibilla	African Stonechat	S. torquatus	Woog et al 2008
AS 2.4	Stejneger's Stonechat	Saxicola stejnegeri	Siberian Stonechat	S. maurus	Zink et al 2009
PS	Bornean Forktail	Enicurus borneensisis	White-crowned Forktail	E. leschenaulti	Moyle et al. 2005; also split Javan and n Chinese ssp ? (Rheindt 2009)
PS	Pacific (?) Rock Thrush	Monticola philippensis	Blue Rock Thrush	M. solitarius	Zuccon & Ericson 2010a
PS	Persian Wheatear	Oenanthe persica	Mourning Wheatear	O. lugens	Förschler et al 2010
PS 2.10	Visayan Shama	Copsychus superciliarus	White-browed Shama	C. luzoniensis	Collar 2011
PS	Brown-streaked Flycatcher	Muscicapa williamsoni	Asian Brown Flycatcher	M. dauurica	King 1997; HBW 12
AS 2.9	Orange-tufted Spiderhunter	Arachnothera flammifera	Little Spiderhunter	A. longirostra	Lohman et al 2010, Rahman et al 2010;
AS 2.9	Pale Spiderhunter	Arachnothera dilutior	Little Spiderhunter	A. longirostra	Lohman et al 2010, Rahman et al 2010
AS 2.10	Bornean Spiderhunter	Arachnothera everetti	Streaky-breasted Spiderhunter	A. affinis	Moyle et al 2011
AS 2.3	Kordofan Sparrow	Passer cordofanicus	Kenya Sparrow	P. rufocinctus	Fry and Keith 2004
AS 2.3	Shelley's Sparrow	Passer shelleyi	Kenya Sparrow	P. rufocinctus	Fry and Keith 2004, Nigel et al 2009
PS 2.10	Italian Sparrow	Passer italiae	Spanish x House Sparrow	P.hispaniolensis x domesticus	Hermansen et al 2011; hybrid origin
PS 2.9	Zarudny's Sparrow	Passer zarudnyi	Desert Sparrow	P. simplex	Kirwan et al 2009
AS 2.7	Kandt's Waxbill	Estrilda kandti	Black-headed Waxbill	E. atricapilla	Birds of Africa VII
AS 2.6	White-capped Munia	Lonchura ferruginosa	Tricolored Munia	L. malacca	BLI 1.0, Restall 1997
AS 2.4	Black-fronted Warbler	Dendroica nigrifrons	Yellow-rumped Warbler	D. coronata	Milá et al 2007a, AOU 2010-A-3 voted no 4/7. Some gene flow between nigrifrons and auduboni but require proof that they interbreed freely to continue to lump as biological species. See Jacobsen & Omland, 2011. Increasing evidence of the role of gene flow in animal evolution: hybrid speciation in the yellow-rumped warbler complex. Molecular Ecology (2011) 20, 2236–2239 re possible case of hybrid speciation
AS 2.4	Goldman's Warbler	Dendroica goldmani	Yellow-rumped Warbler	D. coronata	Milá et al 2007a, AOU 2010-A-3 voted no 4/7
AS 2.4	Audubon's Warbler	Dendroica auduboni	Yellow-rumped Warbler	D. coronata	Milá et al 2007a, Brelsford and Irwin 2009, AOU 2010-A-3 votedno 4/7
AS 2.5	Bahama Warbler	Dendroica flavescens	Yellow-throated Warbler	D.dominica	McKay et al 2010, NACC 2010-B-8
DEL 2.11	Baird's Yellowthroat	Geothlypis bairdi	Olive-crowned Yellowthroat	G. semiflava	Genetically distinct allopatric sister taxon (Escalente et al 2009);
PS 2.9 restored	Roraiman Warbler	Basileuterus roraimae	Two-banded Warbler	B.bivittatus	Hilty 2003, SACC declined; new genetic data suggest that bivittatus and roraimae are sister species (Lovette et al 2009)
DEL 2.11	White-bellied Warbler	Basileuterus hypoleucus	Golden-crowned Warbler	B.culicivorus	Vilaça and dos Santos 2010, SACC 493
AS 2.6	Variable Oriole	Icterus pyrrhopterus	Epaulet Oriole	I. cayanensis	D´Horta et al 2008; SACC Proposal 418
PS 2.9	Tres Marias Oriole	Icterus graysoni	Streak-backed Oriole	I. pustulatus	Navarro-Sigüenza & Peterson 2004,Cortes-Rodriguez et al. 2008. Previously treated as species. Morphologically and genetically distinct (344 control region nucleotides only); await published song analysis underway (Navarro-Siguenza comm 2011)
PS 2.9	Lilian's Meadowlark	Sturnella lilianae	Eastern Meadowlark	S. magna	Barker et al. 2008; plus new species on Cuba in prep
PS	Bahama Bananaquit	Coereba bahamensis	Bananaquit	C. flaveola	Bellemain et al 2008
PS	Lesser Antillean Bananaquit	Coereba bartholemica	Bananaquit	C. flaveola	Bellemain et al 2008
PS	Guatemalan Junco	Junco alticola	Yellow-eyed Junco	J. phaeonotus	Milá et al 2006, Milá et al 2007b
PS 2.10	Baird's Junco	Junco bairdi	Yellow-eyed Junco	J. phaeonotus	Pieplow & Francis 2011
PS	Sage Sparrow	Artemisiospiza nevadensis	Bell's Sparrow	A. belli	Cicero & Johnson 2007, Cicero 2010, Klicka & Banks 2011
PS	Large-billed Sparrow	Passerculus rostratus	Savannah Sparrow	P.sandwichensis	Zink et al. 1991, Rising 2010
PS	Belding's Sparrow	Passerculus beldingi	Savannah Sparrow	P. sandwichensis	Zink et al. 1991, Rising 2010
PS	San Benito Sparrow	Passerculus sanctorum	Savannah Sparrow	P. sandwichensis	Zink et al. 1991, Rising 2010
DEL 2.11	Blue-streaked Mountain Tanager	Dubusia stictocephala	Buff-breasted Mountain Tanager	D. taeniata	Robbins et al 2009 SACC 392 failed, but...?
PS 2.9	???? Seedeater	Sporophila pileata	Capped Seedeater	S. bouvreuil	Machado & Silveira 2011; SACC 502