National Audubon Society - Field Guide to Reptiles and Amphibians - North America. This first all-photographic field guide features 657 full-color images of the reptiles and amphibians of North America, including snakes, toads, frogs, lizards, salamanders, and crocodiles, as they appear their natural habitats. The field guide's unique visual key arranges the photographs according to their subject's shape, color, or markings for simple and accurate identification. Easy-to-use thumb-tabs help identify animals by type. Vinyl cover, 742 pages, 4" x 7 ½", $19.95. To order by phone call toll free 866-596-9982. Free Shipping!