Geographical Location: Western

Other condors await testing for the deadly virus

While many other killer whales are recovering, Southern Residents are decreasing

On the 50th anniversary of the Endangered Species Act, the U.S. Fish and Wildlife Service is hosting “Bringing Back the Wild,” a film series spotlighting rare California wildlife and the...

California researchers will use noninvasive techniques to learn about the Sierra Nevada red fox

The new open-access modeling tool can help managers compare management methods and their costs

The foundation has reached agreements with the Forest Service and BLM

Biologists want tissue samples; some Tribal representatives want it buried intact

But the butterflies still aren’t close to historic numbers

Precipitation and warm temperatures can cause reproductive issues for cavity-nesting songbirds

When it comes to raising chicks, brown-headed cowbirds have a strategy that would infuriate helicopter parents—they let other species do it. Female cowbirds visit the nests of typically smaller songbirds...