This detailed knowledge of their habitat allows them to move quickly within their territory. Owls also have eyes that are adapted to night vision. The back of the eye contains cells called cones and rods. The cones are used for vision in sunlight. The rods are used for night vision.
Owls have eyes that contain more rods than cones and therefore have improved night vision.
Another adaptation owls have developed is silent flight. The forward edge of their wings has feathers designed to change the wind as it travels over the top of the wings. This makes them silent fliers and nearly impossible for their prey to hear.