How many feathers does a bird have? Do birds sleep while in flight? Why do Blue-Footed Boobies have blue feet? How do migrating birds know where to go and how to get there? For these and hundreds of other questions, The Bird Watching Answer Book has expert answers. Written by Laura Erickson, science editor at the Cornell Lab of Ornithology, this book is the authoritative source for information on birds of all kinds.

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