With these handy paperback reference guides, illustrated throughout with black-and-white line drawings, nature watchers know what to look for and how to interpr
Spotting an animal’s fresh footprints in the wild can conjure a world for the hiker: Why did the deer tracks disappear? Where did the cougar turn off the trai
The most comprehensive reference guide to mammal tracks and sign for North America. This new edition is more visual, with more than 1300 photos and 450 illustra