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AOU Check-list of North American Birds

The American Ornithologists' Union official source on the taxonomy of birds found in North and Middle America, including adjacent islands. Searchable by scientific or common name.

Cornell Lab of Ornithology: All About Birds

Detailed information on the birds of North America including pictures, sounds, physical characteristics, life history, geographic range, conservation status, identification guide for field observation.

Cornell Lab of Ornithology: Macaulay Library of Animal Sounds

The world's largest archive of animal sounds and video, from Cornell Univ.'s Macaulay Library. Very extensive coverage of birds, but also includes insects, mammals, amphibians, reptiles and fish.

SORA: Searchable Ornithological Research Archive

Full-text articles from twelve major ornithological journals. Coverage dates vary by title, but all include their historic archives. Does not include very recent articles. For example, Auk (1884-2001).


Avibase is an extensive database information system about all birds of the world, containing over 4.5 million records about 10,000 species and 22,000 subspecies of birds, including distribution information, taxonomy, synonyms in several languages and more.〈=EN

Electronic Resources on Ornithology

Articles, links and other sources of information on the world of birds - their ecology, behavior, distribution, etc. Included are several electronic versions of articles which first appeared in the New Brunswick Naturalist, and Bird Watcher's Digest.

Division of Migratory Bird Management (U.S. Fish and Wildlife Service)

The Fish and Wildlife Service is the lead Federal agency for managing and conserving migratory birds in the United States.This site include useful information on migratory birds.