The Rough-legged Buzzard, Buteo lagopus, also known as the Rough-legged Hawk in North America, is a large raptor found in Arctic and boreal regions. Its distinctive feature is feathered legs down to the toes, an adaptation to cold environments. The plumage varies but typically includes a brown back and a pale underside with dark streaks. It feeds primarily on small mammals like lemmings and voles and is known for hovering while hunting.