The World Bird Names project has been undertaken on behalf of the International Ornithological Congress (IOC). Initially presented as a book by Frank Gill & Minturn Wright (2006), the IOC World List is now a regularly updated online project hosted at www.worldbirdnames.org.
The version of the IOC list currently used within BUBO Listing is v13.1 (updated February 2023). Since we have many more European users than American we do follow popular English names in most cases, i.e. Brent instead of Brant, Skuas rather than Jaegers, and Divers rather than Loons, and grey instead of gray!