My fist flying owl photograph. Great Horned Owls (also known as the Tiger Owl) are huge yet only weigh about 3 pounds. These owls have spectacular binocular vision, allowing them to pinpoint prey and see in low light. The eyes of a Great Horned Owl are nearly as large as those of a human being and are immobile within their sockets. As a result, instead of turning its eyes, an owl must turn its whole head. The neck capable of rotating a full 270 degrees.