Birds of North America
In two centuries of American ornithology, The Birds of North America (BNA) is only the fourth comprehensive reference covering the life histories of North American birds. Following in the footsteps of Wilson, Audubon, and Bent, BNA takes information beyond what these historic figures were able to provide. Edited by Drs. Alan Poole and Frank Gill, this series provides detailed scientific information (18 volumes, 18,000 pages in total) for each of the 716 species of birds nesting in the USA and Canada. The print version of BNA was completed in 2002, a joint 10 year project of the American Ornithologists' Union, the Cornell Lab of Ornithology, and the Academy of Natural Sciences.