Cornell Lab of Ornithology
Cornell Lab of Ornithology: Modern Extinctions on Mainland North America
Since 1850 North America has lost three bird species--the Labrador Duck, Passenger Pigeon, and Carolina Parakeet--and the continued existence of another three is unlikely, namely the Eskimo Curlew, Ivory-billed Woodpecker, and Bachman's...
Cornell Lab of Ornithology
Cornell Lab of Ornithology: All About Birds
One of the great attractions of this site is the ability to listen to the birds. Each bird is categorized with a picture, description, its cry, conservation status and "Cool Facts." There are tips for attracting birds as well as...
NASA
Nasa Earth Observatory: Spotting the Spotted Owl
An article on attempts to save the spotted owl. Biologists are using satellites to monitor potential habitats for this bird of prey and to gather data on the approximate number of spotted owls in circulation.