Welcome Blue jay photo by Isidor Jeklin/CLO

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!

News & Updates

Update (Dec. 2008) New Fully Revised Account-- Field Sparrow, revised by Michael Carey.

News (Nov. 2008)  BNA now has an e-store and makes a perfect gift for the holidays, birthdays, or just-because occasions!  For more information, or to place an order, please visit our e-store.

Update (Dec. 2008) New Fully Revised Account--
Western Meadowlark, revised by Stephen K. Davis.

Are you an AOU member trying to login to BNA? Please read this first.

Update (Nov. 2008) New Photos Added--
new life history and habitat images by Gerrit Vyn. Highlighted galleries include: Heerman's Gull, Elegant Tern and Sanderling. New life history images for Gyrfalcon by species account author Travis Booms and field assistant Josh Spice. Nearly 100 new photos added from the CLO Flickr Birdshare Pool, highlighted galleries include: Swallow-tailed Kite, Western Scrub-Jay, Barn Swallow, Red-tailed Hawk, Steller's Jay, Anna's Hummingbird, many warbler and hummingbird galleries updated and dozens of others.

Complete Archives of News & Updates