The Barn Owl may be the best known owl in the world. The upper parts are orange-buff, spotted with dark grey and white. The underparts are white and the tail short. The male's breast tends to be more white, the female's more spotted brown. The heart-shaped facial disc is usually white. It is sometimes called the monkey owl because of its simian appearance. The long legs are completely feathered. Barn owls have a serrated comb on the claw of the middle toe, found elsewhere only in herons and some goat¬suckers. Females are about 13 to 18 inches and are larger than males. Their eyes are large and dark; the wings are long. Their hearing is exceptional. They can locate prey in total dark¬ness just by sound. Their ears take up nearly the whole length of the skull. They hiss, scream and utter a series of clicking sounds, but do not hoot.