Reptiles of Washington and Oregon
Wildlife of the Pacific Northwest: Tracking and Identifying Mammals, Birds, Reptiles, Amphibians, and Invertebrates (A Timber Press Field Guide)
Sibley Birds West: Field Guide to Birds of Western North America
Amphibians and Reptiles of the Pacific Northwest (A Northwest naturalist book)
Their Blood Runs Cold: Adventures with Reptiles and Amphibians
Peterson Field Guide to Western Reptiles & Amphibians, Fourth Edition (Peterson Field Guides)
Pacific Northwest Insects
A Peterson Field Guide to Western Reptiles and Amphibians (Peterson Field Guides)
Amphibians of Washington and Oregon