A very large owl with protruding fur on its ears. Women weigh on average 1 kg more than men. The upper part is dull yellow to brown with black stripes and horizontal stripes, and the flight feathers and tail feathers are yellowish brown with black or dark brown stripes. When birds call, the white throat is very prominent. Below, the light orange-brown abdomen has black stripes on the upper thorax and dark axial stripes and fine horizontal stripes on the lower abdomen. The dough is greyish brown, yellowish, and has a thin, rather than obvious, slightly dark fold. The white eyebrows highlight the very large golden yellow to bright orange-red eyes. The black beak is surrounded by a patch of white feathers. It has thick feathers and strong toes, and has relatively long and powerful claws with black-brown and black tips. Juvenile fluffy chickens are white. The mediator is pale yellowish brown , with many faint dark stripes on the head , tunic , back , and underneath , and the villi indicate the ear clump. The cubs have milky white yellow-orange eyes. The darker tip of the upper wing stealth and the larger main stealth are exhibited in flight. The almost silent flight was due to soft wing flaps, interrupted in the middle by gliders; It sometimes spikes.
The call makes a deep, resonant, vigorous purr, whine-huh, or boo-ho, every 8-10 seconds, with the first syllable emphasized and the second syllable lowered. Food and hunting feed mainly on mammals, from shrews to hares, but also birds of almost all sizes; Occasionally eat reptiles, frogs, bats, etc., generally hunt from perching trees, but can also use search flight. The habitat prefers open forests with rocky cliffs, but also lives near human settlements and urban buildings. Sea level in Europe to 2000 meters, sea level in central Asia and the Himalayas to 4500 meters.
The current situation and distribution of human persecution has long endangered European populations, but many countries have successfully reintroduced them. The population of Europe (excluding Russia) is estimated at 120 million pairs. In Finland, the population has been declining for more than 15 years, with an overall decline of 2.2% per year from 1982 to 2010; This decline has been linked to the closure of local dumps, especially in rural areas. Unfortunately, in Finland, human persecution continues, usually for the protection of the interests of prey hunters; In 2011, for example, more than a dozen young ringed Eurasian hawk owls were killed in different villages. In the UK, the location of very few known nests is kept secret to avoid game-related killings similar to those in Finland. The presence in northern Morocco has not been confirmed. Geographic variations of races differ mainly in general color, intensity and size of dark markings.
At least 13 subspecies are recognized: the nominated Bubo is native to Scandinavia and eastern Pyrenees to northwestern Russia and Moscow; Hispanas from the Iberian Peninsula was smaller, paler and grayer than the nomination; The Rusenus River, which stretches from Moscow to the Ural and Volga rivers, is also paler, grayer and less vivid; The opposites from Crimea to Asia Minor and Iran are darker and more unfamiliar; Siberia, from western Siberia to the Altai Mountains, is large and white; Yenisseensis is native to central Siberia, between Lake Baikal and Lake Altai to northern Mongolia, with a darker, grayer and yellower former race; Jakutensis, from northeastern Siberia, darker and browner than before; Ussuriname, from southeastern Siberia to northern China, also includes the Kuril Islands, which are darker than Yakutez above and more ochre-colored below; Kiautschensis from Korea and China is smaller and darker in color; Turcomanus from the Volga to the Aral Sea and western Mongolia is very pale and yellow;
Omissus are from Turkmenistan and Iran and are typical of the pale ochre desert race; nikolskii, from Iran to Pakistan, is smaller than previous subspecies and is less dark on top; Hemacharana, from Kyrgyzstan to Balochistan and the Himalayas, is generally light brown. In addition, the taxonomy of Bubo Bubo needs to be studied, as internositus are freely hybridized with the Pharaoh Owl and turcomanus with the Rock Eagle Owl, in both cases where offspring have been shown to be fertile. In addition, some DNA samples seem to support the isolation of interpositus into a different species.
During the breeding season similar species the unusually snowy owl are mostly white and have no clear ear clusters. The almost geographically separated Eagle Owl is smaller, lighter in color, pale in color, with dark and light spots on the ear clump and black spots on the upper chest. Relatively large owl have no or very cluttered ear clumps, bare tarsal bones or at least bare toes. Geographical overlap - flat large gray owls look a little similar in size, but different in weight; It has a large, rounded head, no ear clusters, small yellow eyes, and gray feathers with dark markings.