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It has a rounded head with no ear tufts, and a yellow-orange bill and feet. The tail is sooty-brown, with 4 to 5 narrow white bars and a white terminal band. Primary feathers are significantly darker than the rest of its plumage. Black bristles and feathers are found around the bill and along the leg to the base of the toes. [3] [4]
The crest is made up of semiplume feathers: a long rachis with barbs on either side. These are plumulaceous feathers, meaning that they are soft and bendable. In birds, these semiplumes are common along the head, neck, and upper back, and may be used for buoyancy and sensing vibrations. Crests on birds are generally used for display purposes.
A great horned owl with wet feathers, waiting out a rainstorm. The disadvantage of such feather adaptations for barn owls is that their feathers are not waterproof. [24] The adaptations mean that barn owls do not use the uropygial gland, informally the "preen" or "oil" gland, as most birds do, to spread oils across their plumage through ...
The striped owl is a relatively large species with prominent tufts of elongated feathers on the crown resembling ears. It is 30–38 cm (12–15 in) long and weighs from 320 to 546 g (11.3 to 19.3 oz). [10]
The barn owl has the most visually prominent facial disc, measuring about 110 mm (Simmons), while the great grey owl has the largest disc of any bird. Due to shared inner ear anatomy with barn owls, [ 1 ] it is theorized that the feathered dinosaur Mononykus may also have had a facial disc.
Bird ear tufts are skin projections covered in feathers found in some bird species, most notably various species of owl, vaguely resembling mammalian ears, but unrelated to the animal's hearing. Theories about their function range from improved ability to camouflage, [ 2 ] aiding in finding a suitable mate, [ 3 ] [ 4 ] to giving a more ...
The short-eared owl is a medium-sized owl measuring 34–43 cm (13–17 in) in length and weighing 206–475 g (7.3–16.8 oz). [9] It has large eyes, a big head, a short neck, and broad wings. Its bill is short, strong, hooked and black. Its plumage is mottled tawny to brown with a barred tail and wings.