Birds of Colorado

The Insect Crisis: The Fall of the Tiny Empires That Run the World

Birds of Florida

The Mind of a Bee

Backyard Wildlife

A Book of Bees

Birds of the Rocky Mountains

Spiders of North America

Birds of Prey

Top-Bar Beekeeping: Organic Practices for Honeybee Health

Nature for Kids: Discovering More Than 100 Illustrated Plants, Animals, and Insects in North America

Natural Beekeeping: Organic Approaches to Modern Apiculture

Colorado Wildlife

The Worm Farmer's Handbook: Mid- to Large-Scale Vermicomposting for Farms, Businesses, Municipalities, Schools, and Institutions

Mushrooms: A Falcon Field Guide, Edition 2

Bugs in Origami

Edible Wild Plants: A Falcon Field Guide, Edition 2

Spiders of Southern Africa: Edition 2

Birds of New England: Edition 2

The Natural History of Moths