After Their Egg Is Stolen, Condors Raise Foster Chick

After a California condor pair's egg went mysteriously missing in the middle of the night, the duo is back on track, raising a foster chick that biologists surreptitiously slipped into the birds' mountain nest. The two began courting in 2014, and nested together near the Hopper Mountain National Wildlife Refuge in southern California, according to the Cornell Lab of Ornithology. A team of U.S. Fish and Wildlife Service (USFWS) biologists snuck into the nest on March 2 to set up a bird cam and ch