03/06/2022
Like all birds of prey, an owl’s eyes face the front. This allows them to have a much greater range of binocular vision than animals with eyes situated on the sides of their heads. An owl’s field of view, for instance, is about 110°, and about 64% of that is binocular. A sparrow, on the other hand, has a much larger field of view, up to 300°, but their binocular vision is much more limited, sometimes only 10%.
Owls have terrific binocular vision compared to other birds. Binocular vision describes the ability of animals with two eyes to see an object with both eyes at the same time, giving an animal increased depth perception. There is one drawback to their large eyes. Owls are very farsighted. They can’t focus on objects that are too close. Instead, sensitive whisker-like bristles around their beaks help owls detect objects at close range.
Because owls can’t roll their eyes around the way we do, they have to move their entire head to get a good look around. They frequently twist their head and “bob and weave” to expand their field of view. Owls can turn their necks about 270° in either direction, and 90° up-and-down, without moving their shoulders!