National Audubon Society Field Guide to North American Mammals
By: John O. Whitaker Jr.
This all-photographic field guide features 374 vivid, full-color identification photographs that capture the natural color and stance of the animals and present them in their natural settings.
The first visually organized mammal guide, this book uses helpful thumb-tab silhouettes, a visual key, and color photographs of animals, arranged by type, shape, and size, to make identification simple and accurate. A second key permits the reader to identify animals by their tracks.