Covering nearly 150 of the continent's most common or characteristic species of mammals, birds, reptiles, and amphibians north of Mexico, this field guide will help readers determine what creatures have just passed by and could still be nearby. Each two-page entry includes a brief description of the animal, descriptions of its tracks, scat, and other signs, and notes on habitat and ways to differentiate signs from similar species. Each entry is illustrated with a b&w location map and b&w drawings of the animal, scat, and tracks. An introduction gives an overview of tracking as a hobby. An illustrated glossary and a visual key to tracks are included. Author Halfpenny and illustrator Todd Telander have collaborated on 10 previous titles in the publisher's series. Annotation ©2009 Book News, Inc., Portland, OR (booknews.com)