|a slender European owl, Asio otus, with long ear tufts: most common in coniferous forests|
(Asio otus), nocturnal bird of prey of the family Strigidae (order Strigiformes). Common to woodlands of northern Europe and America, it is recognized by its long ear tufts. Long-eared owls are brownish above, mottled and streaked. They have white underparts with dark streaks. These owls are about 30 cm (about 1 foot) long. They eat mice, birds, fish, frogs, and insects.
Learn more about long-eared owl with a free trial on Britannica.com.