Birds, by design, tend to be small, light and streamlined. Yet there are some that push the boundaries of size. Here is the avian world’s best example of an ultra-heavyweight flyer. Birds of prey are ...

Soar the Andean canyons with these enormous vultures, one of Earth’s largest birds. Learn about this at-risk species that can live up to 75 years.

High above the peaks of South America’s Andes Mountains flies one of the largest birds on Earth. The Andean condor is a remarkable creature known for its enormous wingspan, incredible endurance, and ...

BUENOS AIRES -- The conservationists tend to get a little tense when they approach Egg 54, which sits alone on a metal tray inside an incubator, absorbing warm air like some sort of fragile, ...

The California condor vanished from the wild entirely, but a decades-long fight to save the species has led to a remarkable milestone at the Arizona-Utah border this Saturday. Find out how ...

The elusive and illustrious California condor is making a major comeback in the Bay Area, stretching its wings in areas where the continent’s largest bird has not been seen for more than a century. In ...