Below are summaries of recent updates (3.1 and later) to the IOC World Bird List. Versions 1.0 to 2.11 emphasized consistent use of recommended English names and updated species taxonomy.
Versions 3.1+ expand the content and goals of the IOC World Bird List. Additions include subspecies and their ranges as well as the authors of scientific names. We strive to track in a timely way the latest taxonomic advances in ornithology.
Please click on one of the tabs on the pull down menu above for particular sets of updates, i.e. Species, Subspecies etc. All of the updated information and species changes are included in the latest version of the list on this website.
Beginning with version 3.3, we highlight in red corrections and updates on the Master List webpages on an ongoing basis.
Previous versions of the Master List and Updates are available in the Archives. Click here for tools to help you Update IOC Life Lists.
Version 3.3 ( Jan 2013)
The IOC World Bird List 3.3 contains 10,476 extant species and 149 extinct species classified in 40 Orders, 231 Families (plus 6 Incertae Sedis) and 2268 Genera. The list also includes 20,992 subspecies, their ranges and authors.
Changes include:
SPECIES ADDED: 13 + 4 EXT
TAXONOMY: 14, including revised classifications of Accipitridae, Caprimulgidae and Fringillidae
Version 3.2 (Oct 2012)
The IOC World Bird List 3.2 contains 10,466 extant species and 145 extinct species classified in 40 Orders, 231 Families (plus 6 Incertae Sedis) and 2256 Genera. The list also includes 20,983 subspecies, their ranges and authors.
Changes include:
TAXONOMY: 15, including 3 families (Scotocercidae, Erythrocercidae, Arcanatoridae)
Version 3.1 (April 30, 2012; revised counts 5/29/2012)
The IOC World Bird List 3.1 contains 10,451 extant species and 145 extinct species classified in 40 Orders, 228 Families (plus 6 Incertae Sedis) and 2257 Genera. The list also debuts 20,989 subspecies, their ranges and authors.
Changes include:
SPECIES ADDED: 7 + 126 extinct; 19 species previously included on the Master List are now assigned to Extinct status
RANGES: 19
TAXONOMY: 9, including changes of Family for 5 genera (Chlorothraupis, Paroaria, Amaurospiza, Piranga, Habia)