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.

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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 ...