Conservation News

Health checks for continent’s condors

Twice a year biologists, staff and volunteers at the Hopper Mountain National Wildlife Refuge live-capture California condors, part of a remarkable effort to recover North America’s largest, highest-flying, and most endangered land bird. The Interior

Conservation News

Polluted sea lions poison condors

Marine mammals are so polluted that they are poisoning endangered condors, according to a new study. California condors (Gymnogyps californianus) that fed on marine mammal carcasses had high blood levels of several toxic chemicals, including