Since their first publication 16 years ago, the Field Guides to Birds East and West have sold over 3 million copies. Now, these two perennial favorites are published in completely updated editions--each with nearly 700 all-new, full-color photographs. 200,000 print (East) and 1,500,000 print (West).
Virtually every bird found in eastern North America is brought to life in this portable guide, an essential companion in the field and a staple in any birdwatcher's library--a birding bible for more than four million enthusiasts!

This bestselling field guide features a durable vinyl binding and brilliant full-color photographic identification pictures arranged for quick access and definitive text, including information on the bird's voice, nesting habits, habitat, range, and interesting behaviors. Accompanying range maps; overhead flight silhouettes; and sections on bird-watching, accidental species, and endangered birds make the National Audubon Society's Field Guide to North American Birds the most comprehensive available.

Note: the Eastern Edition generally covers states east of the Rocky Mountains, while the Western Edition covers the Rocky Mountain range and all the states to the west of it.