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!

What's New in BNA

Update - Now Featuring eBird data-- Over the next year, BNA will be sequentially introducing eBird data to the 'Distribution' pages.  See an example here: American Robin.

New Fully Revised Species Maps--
Over the next year, BNA will be sequentially introducing entirely updated species distribution maps. These maps feature up-to-date distribution information and an revised color scheme.  See an example here: Northern Mockingbird.

Update (March) New Fully Revised Species Accounts--
Gull-billed Tern Systematics and Distribution have been revised by BNA staff. This account's photo, and video galleries have also been updated. Also revised this month is Wild Turkey, revised by Jon McRoberts and Mark Wallace. This account's photo, audio, and video galleries have all been updated. Rock Pigeon has been revised by Peter Lowther. This account also includes new material in the photo, audio, and video galleries.

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Update (February) New Fully Revised Species Accounts--Lesser Yellowlegs has been revised by BNA staff with help from Peter Lowther. This update includes new details on threats this species faces in migration and on its winter grounds, plus updated Systematics; note too that the photo, audio, and video galleries have all been updated. Also revised this month is American Robin, revised by Natasha Vanderhoff. This account features new material on diet and foraging, population movements and distribution, and on breeding and behavior; in addition, this account's photo, audio, and video galleries have all been updated. Lesser Goldfinch has been revised by Doris Watt and Ernest Willoughby. New material here in the Distribution, Systematics, and Demography and Populations sections; plus this account's photo, audio, and video galleries have all been updated. Broad-winged Hawk has been revised by Laurie Goodrich and Scott Crocoll. This account's photo, audio, and video galleries have all been updated, along with new details on migration, distribution, and populations.

Complete Archives of News & Updates


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