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.
Avibase is an extensive database information system about all birds of the world, containing over 25 million records about 10,000 species and 22,000 subspecies of birds, including distribution information for 12,000 regions, taxonomy, synonyms in several languages and more. This site is managed by Denis Lepage and hosted by Bird Studies Canada, the Canadian copartner of Birdlife International. Avibase has been a work in progress since 1992 and I am now pleased to offer it as a service to the bird-watching and scientific community.