Mind of the Raven: Investigations and Adventures with Wolf-Birds
Ornithology
The Sibley Field Guide to Birds of Western North America: Second Edition
Collins Bird Guide: An essential field guide for birdwatchers of all skill levels
The New Stokes Field Guide to Birds: Western Region
Wesley the Owl: The Remarkable Love Story of an Owl and His Girl
The Sibley Field Guide to Birds of Eastern North America: Second Edition
Birds of Southwestern British Columbia
Crow Planet: Essential Wisdom from the Urban Wilderness
