After peregrine falcon populations in the eastern U.S. were decimated by DDT, the Great Smoky Mountains played a role in bringing the birds back.

ST. LOUIS — A pair of peregrine falcons has returned to a nesting site in Franklin County, with at least one egg already laid, signaling the start of another breeding season that wildlife officials ...

Since mid-February, biologists have been struggling to control an outbreak of avian flu in a colony of more than 1,300 elephant seals at Año Nuevo, a state park 55 miles south of San Francisco. It’s ...