Flightless species of birds (such as ostriches, which are the largest living birds) tend to outsize any of the largest birds ...

Birds of prey are large, predatory birds with sharp talons and hooked bills that are known for their strength, freedom, and ...

The Andean condor is considered threatened but is in far better shape than its California cousin. Reintroduction programs are working to grow populations of these South American birds.

Tipping the scales at more than 30 pounds and measuring up to 4 feet in length, the Andean condor is one of the world’s largest flying birds. Unfortunately, it’s also one of the most imperiled.

Adult female soaring in central Chile with broad wings, some of the largest of any bird. Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert ...

Historical drilling, geochemical and geophysical data recently obtained from a major mining company that previously ...