The Peterson Field Guide to Eastern Birds, considered the Birder's Bible for more than sixty years, is now here in large, easy-to-read format. Roger Tory Peterson's classic art is enlarged to new proportions, making bird identification easier than ever. 390 newly updated range maps are located next to the descriptions, opposite the illustrations. Features the unique Peterson Identification System, which has never been surpassed as a tool for field identification and is available only in Peterson Field Guides. A Field Guide to the Birds, first published in 1934, remains Peterson's most famous and wonderful work. Peterson groups paintings of related species together and uses arrows to, as he explained, inchpinpoint key field marks. This way, watchers can spot birds from a distance and avoid, as he put it, inch the bird-in-hand characters that the early collectors relied on. Birders can use the guide where they need it most...outdoors...on living birds flitting by quickly. In addition to detailed illustrations, Peterson offers charming and useful descriptions of each bird's appearance, behavior, voice and range.