There are more than 12,000 regional checklists in Avibase, offered in 9 different taxonomies, including synonyms more than 175 languages. Each checklist can be viewed with photos shared by the birding community, and also printed as PDF checklists for field use.
There are a few ways by which you can help the development of this page, such as joining the Flickr group for photos or providing translations of the site in addition languages.
The table provided below compares authorities for this taxon and related concept. Names in red are those that differ from the name in the column located immediately to the left.
Species concept
American Ornithologists' Union 1st edition (1886)
American Ornithologists' Union 2nd edition (1895)
American Ornithologists' Union 3rd edition (1910)
American Ornithologists' Union 4th edition (1931)
American Ornithologists' Union 5th edition (1957)
American Ornithologists' Union 6th edition (1983)
American Ornithologists' Union 7th edition (1998)
American Ornithologists' Union 7th edition (incl. 59th suppl.)