Ferruginous Hawk. Photo taken in the Saguaro National Park, ASDM Tucson, Arizona. The largest hawk found in North America. They migrate south to Arizona in the fall. They Hunt primarily rodent prey, especially prairie dogs. pecies common name This species is a large, broad-winged hawk of the open, arid grasslands, prairie and shrub steppe country; it is endemic to the interior parts of North America. It is used as a falconry bird in its native range.