Manual of Ornithology: Avian Structure and Function
Bird Brain: An Exploration of Avian Intelligence
Sibley's Birding Basics: How to Identify Birds, Using the Clues in Feathers, Habitats, Behaviors, and Sounds
The Sibley Field Guide to Birds of Eastern North America: Second Edition
National Geographic Field Guide to the Birds of North America, Sixth Edition
The Sibley Field Guide to Birds of Eastern North America
Better Birding: Tips, Tools, and Concepts for the Field
Herpetology, Fourth Edition: An Introductory Biology of Amphibians and Reptiles