The Boreal Owl is a small owl with feathered legs from the family of true owls. It is brown above, with white flecking, a light stripe at the wing base, and whitish under parts streaked with brown. It has a light facial disk with a black border, clear yellow iris, yellow beak, and white leg feathers. The Boreal Owl only hunts at night. Its preferred biotope for nesting consists of coniferous or deciduous forests, preferably stands of beeches. It usually nests in hollows left behind by the Black Woodpecker, but also readily accepts nesting boxes installed by humans.