Owls, Different Owls, Owls Memes, Owls wet, Owls funny
Cowboy (Latin Strigiformes, or Striges) is a group of birds of prey, which includes more than 420 large and medium-sized species, mostly nocturnal birds, distributed throughout the world. There are two families in the detachment: owls, or real owls, and the owls, but in the taxonomy of Sibley-Alquist, all families of the order of Caprimulgiformes are placed in the detachment.
Brief characteristics of Sov : large head, large round eyes in front of head, beak short, predatory. Hunts at night, the plumage is soft, the flight is noiseless, the claws are long and sharp, the color masking.
"Owls are not what they seem" . These creatures from the world of birds, with a deep and piercing look, and unique behavior, knowingly from time immemorial populate fairy tales and legends. Since ancient times, owls have been symbols of something gloomy or symbols of wisdom. For the rodents and hares, the owl is a symbol of death: owls are magnificent hunters, with the finest hearing, night vision, noiseless wings and deadly speed.
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Scientific classification
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Anatomical features
By their anatomical features are different from day-to-day predatory and therefore stand out as an independent detachment. The peculiarities of the skeleton of owls are: the existence of appendages of the basic bone, the peculiar triple junction of the lower jaw with the skull, the very short phalanges of the third finger, the mobility of the outer toe which can be bent back, and finally the existence in the majority of species (except for the barn owls) bones. Five rows of stiffer, judged feathers form a radiant corolla, the so-called facial disc. The feathers of wide wings are wide, rounded at the ends and bent to the body; The outer webs of the first three feathers are often friable or sawtooth serrated, which allows the fly to be virtually silent; The third and fourth pen are longer than the others. The tail feathers of a circumcised or rounded, usually short tail, are also bent to the bottom. Legs are usually feathered to the ground.
Sharp long claws are strongly bent. The beak of an owl, bending from the very base, does not have any cuttings around the edges and ends with a short hook, by means of which owls can produce a characteristic click, expressing strong excitement or irritation. A short wax is always covered with bristly feathers.
The eyes of the owls are very large and look straight ahead, according to the position of the eye sockets on the front side of the facial parts of the skull, that is, to move their eyes like a man, an owl can not. The eyes of the owls stand still for the rest of their lives. The world for owls is represented in black and white. Contrary to the popular belief that owls do not see anything during the day, the eyes of owls are not as sensitive to daylight; Owl, for example, perfectly sees in the day, even at a great distance. The pupil of owls strongly narrows and expands not only with changing lighting, but also with each inhalation and exhalation. Both sight and hearing are extremely thin. It is almost 4 times thinner than a cat's. The outer ear is relatively large and can be covered with a movable fold of the skin, feathered outside; Radiant feathers sitting around the ear holes form an outer shell of the ear.
Owls can turn their heads 270 ° without harm to health due to a number of devices. First, the carotid artery of the owls in the region of the lower jawbone have balloon-shaped enlargement, creating a blood supply in case the blood supply "from below" is reduced when the blood turns sharply. Because of this feature, the network of small blood vessels extending from the main arteries is increased, which facilitates the delivery of blood to the brain. Secondly, to ensure that blood vessels are not squeezed into the corresponding holes in the cervical vertebrae while turning the head, these holes are about 10 times wider than the diameter of the arteries passing through them. Thirdly, the carotid arteries are connected to vertebral arches by special anastomoses in case the carotid arteries are strongly compressed during the turn.
Most of the owls are dull; Usually in the main gray or rusty background more or less densely scattered black spots, stripes and pieskin; But this color of owls is always in harmony with the surrounding background and completely hides them in the twilight.
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