Bird Websites:

Bird Collections

Checklist of Costa Rica Birds

Cornell University Ornithology Collection

Florida Museum of Natural History, Pierce Brodkorb Ornithology Collection

Manchester Museum

Natural History Museum of Los Angeles County -- Ornithology

Peabody Museum, Yale University, Ornithology Collections

The Slater Museum, University of Puget Sound, Tacoma, Washington

University of Bergen Department of Zoology

World Inventory of Anatomical Specimens

List of Hummingbird Organizations

The National Audubon Society

The Ornithological Council

The Turkey Vulture Society

Washington State Ornithological Society