Kaufman field guide to insects of North America (Kaufman field guide)

National Wildlife Federation field guide to insects and spiders & related species of North America

The National Audubon Society field guide to North American insects and spiders

The common insects of North America

Insects : a guide to familiar American insects : 225 species in full color

Familiar insects and spiders

National Audubon Society first field guide to insects

A field guide to mushrooms, North America

National Geographic field guide to the trees of North America

Wildlife around us : field guide & drawing book, Volume 1

Field guide to mammals of North America

Field guide to the birds of North America

Field guide to the birds of North America

National Geographic field guide to the birds of North America

Birds of North America

A field guide to warblers of North America

McClane's Field guide to freshwater fishes of North America

Peterson first guide to trees

National Geographic field guide to the birds of North America

Sibley field guide to birds of eastern North America

A field guide to hawks, North America

Reptiles of North America : a guide to field identification

Peterson field guide to birds of North America

Butterflies and moths : a guide to the more common American species

National Geographic pocket guide to the birds of North America

National Audubon Society Sibley Master guide to birds : field identification

The Audubon Society field guide to North American birds, eastern region

National Audubon Society field guide to North American mammals

Trees of North America : a field guide to the major native and introduced species north of Mexico

Field book of insects of the United States and Canada, aiming to answer common questions

The National Audubon Society birds of North America : the complete guide to birding--with full-color photographs, updated range maps, and authorative notes on voice, behavior, habitat, nesting, and conservation status

Pocket guide to the wildflowers of North America

A field guide to western reptiles and amphibians

Indian tribes of North America

Field guide to North American seashore creatures

Insects, spiders, and other terrestrial arthropods

The Audubon Society field guide to North American wildflowers, eastern region

National Audubon Society field guide to North American reptiles and amphibians

The insect book : a basic guide to the collection and care of common insects for young children

The Audubon Society field guide to North American fishes, whales, and dolphins

Don't squash that bug! : the curious kid's guide to insects