Having three adults in the nest frees up one of the birds “to kind of maintain the social status within the social hierarchy ...

In May 1835 in Willamette Falls, Oregon, an eager young Philadelphia naturalist named John Kirk Townsend collected a female California condor. It’s one of the oldest specimens among the ...

The nest of the California condor is, on average ... The pliable nature of these materials allows for the female to shape it as she pleases. Regardless of shape or structure, the nests of birds ...

A cherished icon of the West, the prehistoric-looking California condor remains one of the world's most endangered species. North America's largest avian narrowly escaped extinction in the mid-1980s ...

Zoos in the state work closely with the US Fish and Wildlife Service as part of the California Condor Recovery Program after the species almost went extinct in the 80s. Now every condor chick born ...

Researchers evaluated the safety and immune response of a poultry-derived H5N1 avian influenza vaccine in black vultures and ...

A colossus of the sky, the California condor was nearly gone when biologists rescued it from extinction. Then came a terrible new challenge Franz Lidz; Photographs by Jak Wonderly The leaden sky ...

A California condor that had recently been released from a rehabilitation program has died from lead poisoning. The Yurok Tribal Government announced the death of Pey-noh-pey-o-wok (which means ...