Return of the Whooping Crane
Doughty, Robin W.
The Whooping Crane
Allen, Robert Porter
Wildlife Investigational Techniques
Mosby, Henry [Editor]
Endangered and Disappearing Birds of the Midwest
Travel Diaries of a Naturalist: I-III
The Flame Birds
Allen, Robert P.
Raptors in Captivity: Guidelines for Care and Management
The California Condor
Koford, Carl B.
The Bobwhite Quail: Its Habits, Preservation, and Increase
STODDARD, Herbert L.
Raptors: A Field Guide for Surveys and Monitoring. Third edition
Hardey, Jon; Humphrey Crick, Chris Wernham, Helen Riley, Brian Etheridge, Des Thompson
Belonging on an Island: Birds, Extinction, and Evolution in Hawai'i
Global Warming and Biological Diversity
Peters, Robert L.; Lovejoy, Thomas E.