TUCSON, Ariz.— The U.S. Fish and Wildlife Service today designated 298,845 acres in Arizona, California, Colorado, Idaho, New Mexico, Texas and Utah as critical habitat for the western yellow-billed ...

The yellow-billed cuckoo is sometimes called the "rain crow" because its song is often heard just before thunderstorms or summer showers. But this rare bird raises its voice less and less often in ...

The Suckley’s cuckoo bumble bee relies on other bees to ... the use of pesticides, loss of habitat, and the effects of climate change, according to the USFWS. Public comment for this rule ...