(Nyctea scandiaca), a white or barred, brown-and-white bird of prey of the family Strigidae (order Strigiformes). It inhabits the Arctic tundra and sometimes wanders southward in Europe, Asia, and North America. Snowy owls are about 60 centimetres (about 2 feet) long and have broad wings and a round head without ear tufts. They eat small mammals (such as hares and lemmings) and birds and nest on the ground in the open.