There are 11 subspecies of the eagle owl (scientific name: Ninox scutulata). Nocturnal raptors. Body length 22-32 cm, weight 212-230 g. There is no obvious face plate and collar, and the eyes have black whiskers. migration.
Size measurement: weight ♂212-220g, ♀230g; body length ♂290-313mm, ♀280-313mm; mouth peak ♂14-20mm, ♀12-17mm; wings ♂226-234mm, ♀230-240mm; tail ♂125-140mm, ♀121-140mm; tarsal ♂28.5-33mm, ♀27-31mm. (Note: ♂ male; ♀ female)
Major provinces: Beijing, Liaoning, Jilin, Heilongjiang, Shanghai, Jiangsu, Fujian, Jiangxi, Shandong, Henan, Hunan, Guangdong, Guangxi, Sichuan, Yunnan, Shaanxi, Gansu, Taiwan, Hong Kong.
Protected areas: Niumling, Wuyi Mountain (Fujian), Dongzhai Bird, Jigong Mountain, Liangshui, Xingkai Lake, Houhe, Changbai Mountain, Poyang Lake, Wuyi Mountain (Jiangxi), ShuangtaiHekou, Rongcheng Swan Lake, Jinyun Mountain, Jinfoshan Mountain, Ailao Mountain, Dawei Mountain, Jinping Watershed, Gaoligong Mountain, Qingliangfeng, Tianmu Mountain (Zhejiang), Wawu Mountain, Anxi Yunshan Mountain.
Mountains and lakes: Changbai Mountain, Dabie Mountain, Tongbai Mountain, Tianmu Mountain, Qinling Mountain.
Both resident birds and migratory birds breeding in china in the summer are common. At low to medium altitudes, up to 1500 meters above sea level. The subspecies Siberian subspecies breeds in northeast China to central and eastern China, migrating south to overwinter; the South China subspecies is a resident bird in southern China and Hainan Island
The breeding season is from May to July. It usually nests in natural caves on trees such as large poplars and spring elms, but also uses tree holes such as mandarin ducks and woodpeckers. The tree holes of the nest are relatively wide, and the width and depth of the nests vary greatly. The diameter of the nest cave entrance is 9-30 cm, the depth of the hole is 18-64 cm, and the diameter inside the hole is 10-43 cm. There is no padding in the nest, or only decaying wood chips in the tree hole. If it is the old nest of the Mandarin duck, there are a small number of leftover down feathers. 1 litter is bred each year, and each clutch lays 3 eggs. The eggs are nearly spherical, milky white, and have a smooth and spotless surface. The incubation of the eggs is entirely borne by the female, and the male is guarded near the nest. Nest protection is extremely ferocious, especially in the late incubation and during brooding, when encountering danger, male and female birds will take turns to launch violent attacks on the intruder until the intruder is driven out of the field. The incubation period is 25-26 days. The chicks are late-blooming, with their eyes closed when they hatch, covered with white villi, flesh-red skin, grey-black beaks, lead-gray crayens and claws, and leave the nest at 30 days of age.