Describes and illustrates over 2,300 North American butterflies, and includes range maps, a pictorial table of contents, and full indexes.

A comprehensive guide to the insects of North America contains information--including life histories, behaviors, and habitats--on every major group of insects f

Featuring more than 1,200 color images, illustrations, and range maps, a compact reference identifies and describes every species of wild mammal found north of

The only field guide for identifying the birds, mammals, trees, wildflowers, insects, reptiles, amphibians, fishes, spiders, mushrooms, ferns, grasses, and sky

Collects photographs, range maps, and descriptive entries identifying the markings, habits, habitat, and voice of each species.