Sibley's Raptors of North America
David Allen Sibleyhas been watching and drawing birds since 1969 and has traveled throughout North America studying the natural world, both on his own and as a leader of bird-watching tours. He is the author ofThe Sibley Field Guide to Birds of Eastern North America,The Sibley Field Guide to Birds of Western North America,The Sibley Guide to Bird Life & Behavior,The Sibley Guide to Birds, Sibley’s Birding Basics, and The Sibley Guide to Trees. He lives in Concord, Massachusetts.