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.

US wildlife researchers have discovered that two California condors, a critically endangered bird, gave birth without ... were published this week in the American Genetic Association's Journal ...

The Andean condor is the world's heaviest soaring bird and can weigh up to 15kg The world's heaviest soaring bird flaps its wings just 1% of the time during flight, researchers have found.

Gymno comes from the Greek word gymnast, meaning "naked," and refers to the condor's featherless head; gyps is Greek for "vulture." DESCRIPTION: The largest flying land birds in North America, ...

A group of endangered California condors in far northern California faced a lead poisoning scare this month, with one bird being sent for special treatment. The reintroduction program run by the ...