books by author
Roger Tory
Peterson First Guide to Birds of North America (Peterson First Guides)
Field Guide to Eastern Birds (Peterson Field Guides)
First Guide to Wildflowers (Peterson First Guides)
Peterson First Guide to Insects of North America (Peterson First Guides)
Birds: An Introduction to General Ornithology
A Field Guide to the Birds of Britain and Europe (Collins Field Guide)
East Birds (Peterson Field Guide)
Western Birds (Peterson Field Guides)
