More than seventy years ago, Roger Tory Peterson created the flagship book of the Peterson Field Guide series. This best-selling field guide of all time continues to be a popular resource for birders Classic Peterson art captures the essence of each bird. Illustrations, species descriptions, and maps in one place for convenient identification. Coverage of Eastern North American west to the Rockies, including the Lower Rio Grande Valley. Sponsored by the National Wildlife Federation, the Roger Tory Peterson Institute, and the National Audubon Society.