Allegheny Front Hawk Watch
Bear Divide Migration Count
Braddock Bay Raptor Research
Denver Field Ornithologists
Derby Hill Bird Observatory
Ecovida-Aetos HawkWatch
Hawk Mountain Sanctuary
HawkWatch International
Keweenaw Bird Research Group
Mackinac Straits Raptor Watch
Rocky Mountain Eagle Research Foundation
Tropicos Colombia
Whitefish Point Bird Observatory