Owls are birds of the order Strigiformes, which includes about 200 species of birds mostly solitary and nocturnal of prey typified by a vertical posture, a large head, wide, binocular vision, binaural hearing, sharp claws and feathers adapted to Silent flight. Exceptions include the daytime Northern Hawk-owl and the greary Owl Burrow.
Owls hunt mainly small mammals, insects, and other birds, although some species specialize in hunting fish. They are found in all regions of the Earth, except polar hubcaps and some remote islands.
The owls are divided into two families: the true (or typical) family owl, Strigidae, and the owl-barn family, Tytonidae.
The owl’s plumage color plays a key role in its ability to sit and mingle in the environment, making it almost invisible to prey. Owls tend to mimic the coloration and sometimes even the texture patterns of their surroundings, the common owl is an exception. Nyctea Scandiaca, or snowy owl, appears almost whitish in color with some black spots, perfectly mimicking its snowy surroundings. Similarly, the Spotted Owl (Strix ocellata) shows shades of brown, cinnamon and black, which makes the owl almost invisible in the surrounding trees, especially behind. In general, the only sign of the narration of an owl perched is its vocalizations or its colored eyes vividly.