Conservation Medicine

• Alliance of Veterinarians for the Environment
• American Association of Wildlife Veterinarians
• Animal & Human Health for the Environment and Development (AHEAD)
• California Condor Conservation
• Consortium for Conservation Medicine
• Envirovet Summer Institute
• Smithsonian-Mason Semester for Conservation Studies
• Tufts University Center for Conservation Medicine
• UGA Costa Rica Conservation Biology & Conservation Medicine Summer Program
  
• USGS National Wildlife Health Center
• Wildlife Conservation Society Field Veterinary Program
• Wildlife Disease Association
• Wildlife Trust Alliance

Conservation Organizations and Advocacy Groups

• American Bird Conservancy
• Avian Welfare Coalition
• BirdLife International
• EcoHealth
• Environmental Protection Agency
• International Union for the Conservation of Nature (IUCN)
• National Audubon Society
• National Wildlife Federation
• The Nature Conservancy
• North American Association for Environmental Education
• Parrots International
• RARE Conservation
• Seanet
• Sierra Club
• Southwestern Research Station
• Top 100 Forestry Resources
• US Fish and Wildlife Service
• Wildlife Conservation Society
• World Parrot Trust
• World Wildlife Fund

Birding and Natural History

• Audubon Annual Christmas Bird Count
• Bird Life International
• Birding.com
• Cornell Ornithology Laboratory
• Great Backyard Bird Count
• National Audubon Society
• International Union for Conservation of Nature and Natural Resources
• Wildlife Conservation Society

Think Green

• American Bird Conservancy: Cats Indoors! The Campaign for Safer Birds & Cats
• Breathing Earth
• COHAB
• Freecycle Network
• Green Thing
• Harvard Medical School: Center for Health and the Global Environment
• New American Dream
• The Daily Green