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Comprehensive life histories for all bird species and families.
Coverage: Created by the Cornell Lab of Ornithology, Birds of the World (BOW) content was amassed from four major works: _Birds of North America, The Handbook of Birds of the World, Neotropical Birds,_ and_ _ Bird Families of the World. Included is the Macaulay Library, which contains the world’s largest collection of animal sounds as well as a rapidly growing photo and video library of animal behavior.