The great horned owl, the fiercest and most powerful of the common owls, is visually stunning. It is sometimes called the cat owl because of its catlike ears, eyes, shape of head, and appearance when huddled up on its nest. The great horned owl is highly recognizable for the feather tufts on its head that resemble horns. The upper parts of the owl's body are sooty brown with gray-brown mottling, and its dark underparts make its white throat standout. The great horned owl measures approximately .5 m. in length and has a wingspan of approximately 1.4 m from tip to tip.
Average mass: 1450 g.
Average basal metabolic rate: 5.2442 W.