Roger Tory Peterson's unique identification system explains exactly what
features to look for to tell one species from another. In each Peterson
Field Guide, an author with expertise in the subject and an experienced
artist work closely with the editors to ensure that both text and
illustrations are accurate. This edition includes 100 color photographs
of tracks and signs, more than 1,000 line drawings, and nomenclature for
all the mammals of North America. The text includes descriptions of
habits, habitats, tracks, signs, and ranges, and is filled with
wonderful natural history stories. Olaus J. Murie, one of America's
leading mammalogists, has completed fieldwork throughout the United
States and Canada, from Labrador to the Aleutian Islands, with special
concentration in the Northwest. He wrote The Elk of North America and
many articles on natural history. Mark Elbroch is the author of several
tracking guides, including two award-winning books, Mammal Tracks and
Sign: A Guide to North American Species and, with Eleanor Marks, Bird
Tracks and Sign: A Guide to North American Species. He has contributed
to numerous North American research projects, from monitoring bears to
capturing cougars to inventorying carnivores in dry tropical forests.