Seasons in the Desert A Naturalist Handbook
Secret Lives of Animals
Sharks, Rays and Chimaeras of California
Sibley Backyard Birding Flashcards
Sibley's Backyard Birds of Northern & Central California
Sibley's Backyard Birds of Southern California
Sibley's Backyard Birds of the California Coast
Sierra Birds A Hiker's Guide
Snakes of Southern California, A Guide to Common and Notable Species
Squirrels - A Wildlife Handbook
The American Bird Conservancy Guide to Bird Conservation
The Bird - a natural history of who birds are, where they came from, and how they live
The Bugman on Bugs
The Complete Book of Hummingbirds
The Easy Bird Guide Western Region- Falcon Guide
The Greater Roadrunner
The Last Wild Wolves - Ghost Of The Rain Forest
The Nature of California - An Introduction to Familiar Plants, Animals & Outstanding Natural Attractions
The New Wolves
The Ornithologist's Dictionary
The Sibley Field Guide to Birds of Western North America
The Warbler Guide
Top 100 Birding Sites of the World
Tracks & Sign of Insects and Other Invertebrates - A Guide to North American Species