A tiny desert owl is set to be taken off the federal government's endangered species list, drawing praise from developers but protests from environmentalists. The cactus ferruginous pygmy owl is only ...

An environmental group says Tuesday’s relisting of the pygmy owl as an imperiled species could provide another weapon for opponents of Interstate 11 construction through the Avra Valley west of Tucson ...

Cactus ferruginous pygmy owls are named for the saguaro cactuses they live in, their rusty-colored stripes, and their small size. They’re as fierce as they are small: These 2.5-ounce raptors prey on ...