Sibley'S Raptors Of Eastern Na

Written and illustrated by david allen sibley, america's most widely respected bird illustrator and ornithologist, these foldingguides offer instant access to just what birders need to know. Includes 27 species of eagles, hawks, falcons, kites, vultures, and harriers- both common and exotic- found east of the rockies. Each entry multiple illustrations, descriptive captions, size, detailed range maps, and seasonal presence.