"A beautiful and comprehensive photo-filled guide that is the first to show all of the frogs of North America and includes a CD of their calls Colorful and noisy early indicators of environmental distress, frogs and toads are fascinating to casual nature lovers as well as expert herpetologists. Covering all 101 species in the United States and Canada, this book contains natural history information, identification tips, range and habitat information, summaries of behavior, and descriptions of calls. A 70-minute audio compact disc includes the calls of nearly every species and makes fascinating listening for any nature lover. The book also has sections on conservation issues, public participation in census programs, photography and sound recording, and keeping frogs and toads as pets. From the olive-and-black Pig Frog, which gets its name from its low-pitched, piglike grunt, to the X-marked and familiar-sounding Spring Peeper, the superb photographs and high-quality field recordings combine with the informative text to make this a must-have book for every naturalist."--Publisher's description.