A superb collection of field recordings and descriptions offer unparalleled access to the sounds and calls of numerous popular and less well-known amphibians. The book and CD provide an introduction to the sound repertoire of species living in eastern and central North America. A variety of calls from each species are included, along with an in-depth description and explanation of their significance. In addition to colour photographs of the most common species, the text offers a fascinating look at the science of amphibian calls, making this guide an indispensable aid for the outdoor enthusiast.