Do birds have knees? Can they fly backward? And what songbird has the widest repertoire? Beginning with basic information about how birds are classified, Stephen Moss answers 450 questions about our fine feathered friends, covering where they live, what they eat, why they sing, and how they interact, migrate, and reproduce; Moss also discusses how and why humans study these fascinating creatures. Additional fun facts are included in insets, while Clive Dobson's skillful pencil sketches appear throughout the book.