The Hamlyn Guide to Animal Tracks, Trails and Signs by R.W. Brown
While some mammals, birds, amphibians and reptiles may be observed fairly easily, many more are rarely, if ever, seen although the tracks, trails and signs they leave behind provide vital clues to identity, behaviour and population. This guide contains both photographs and diagrams of these identification marks and demonstrates how to read the signs, and how to make permanent records of tracks and trails.