Owls are birds from the order Strigiformes, which
includes over 200 species of mostly solitary and nocturnal birds of prey
typified by an upright stance, a large, broad head, binocular vision,
binaural hearing, sharp talons, and feathers adapted for silent flight.
Exceptions include the diurnal northern hawk-owl and the gregarious
burrowing owl.
Owls hunt mostly small mammals, insects, and other
birds, although a few species specialize in hunting fish. They are found
in all regions of the Earth except the polar ice caps and some remote
islands.
Owls are divided into two families: the true (or
typical) owl family, Strigidae, and the barn-owl
family, Tytonidae.
A group of owls is called a "parliament".