Birds of North America

Following Wilson, Audubon, and Bent, Birds of North America Online is a well-respected, comprehensive reference covering the life histories of over 700 species of North American birds. Produced by the Cornell Lab of Ornithology, it includes detailed scientific information on behaviors, habitat, distribution, migration, systematics, food habits, breeding and life span, mortality and disease, conservation and management, measurements and bibliographies among others. Also included are video and image galleries along with recordings of songs and calls from the collection at Cornell's Macaulay Library of Natural Sounds.