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Welcome
In two centuries of American ornithology, The Birds of North America
(BNA) is only the fourth comprehensive reference covering the life
histories of North America’s breeding birds. Following in the footsteps
of Wilson, Audubon, and Bent, BNA provides a quantum leap in
information beyond what those historic figures were able to assemble.
The print version of BNA was completed in 2002 – 18 volumes, 18,000
pages -- a joint 10 year project of the American Ornithologists' Union, the Cornell Lab of Ornithology,
and the Academy of Natural Sciences.
Now as an online project of the Cornell Lab of Ornithology, BNA is
becoming a living resource. Account contents are updated frequently,
with contributions from researchers, citizen scientists, and designated
reviewers and editors. In addition, BNA Online contains image and video
galleries showing plumages, behaviors, habitat, nests and eggs, and
more. And most online BNA accounts now feature recordings of the songs
and calls of their species, recordings selected from the extensive
collection of Cornell's Macaulay Library
of Natural Sounds. Future work will enhance BNA’s audio and video
contributions, speed revisions via efforts coordinated online, and
provide a significant boost to the number of photos available to
subscribers. Stay tuned!
Recent BNA Updates
Update (October 2015) New Fully Revised Species Accounts-- The Gunnison Sage-Grouse account was revised by Jessica Young, Clait Braun, Sara Oyler-McCance, Cameron Aldridge, Patrick Magee, and Michael Schroeder. This account's photo, video and audio galleries were updated. The account for Painted Bunting was revised by BNA staff with help from Peter Lowther. This account's photo, video and audio galleries were updated.Are you an AOU member trying to login to BNA? Please read this first.
Update (September 2015) New Fully Revised Species Accounts-- The Hawaii Elepaio, Oahu Elepaio, and Kauai Elepaio account was revised by Eric VanderWerf. This account's photo, video and audio galleries were updated.
Update (August 2015) New Fully Revised Species Accounts-- White-tailed Ptarmigan was revised by Kathy Martin, Leslie Robb, Scott Wilson, and Clait Braun. This account's photo, video and audio galleries were updated. Also this month, Bobolink was revised by Rosalind Renfrew, Allan Strong, and Noah Perlut. This account's photo, video and audio galleries were updated. Bicknell's Thrush was revised by Christopher Rimmer, Kent McFarland, Walter Ellison, and Jason Townsend. The photo, video, and audio galleries have been updated.
Update (July 2015) New Fully Revised Species Accounts-- Spotted Towhee was revised by Sarah Bartos Smith with help from Peter Lowther. This account's photo, video and audio galleries were updated. Also this month, Chestnut-collared Longspur was revised by Barbara Bleho. This account's photo, video and audio galleries were updated. California Condor was revised by Myra Finkelstein, and Zeka Kuspa. The photo, video, and audio galleries have been updated.
Update (June 2015) New Fully Revised Species Accounts-- Laughing Gull was revised by Joanna Burger. This account's photo, video and audio galleries were updated. Also this month, King Rail was revised by Bradley Pickens. This account's photo, video and audio galleries were updated. Snowy Owl was revised by Denver Holt, Matt Larson, Norman Smith, and Dave Evans. The photo, video, and audio galleries have been updated.
