Appearance characteristics of red-crowned crane

The red-crowned crane has a body length of about160cm, a wingspan of 240cm and a weight of about 290g. The whole body is almost pure white, and the top of the head is bare and hairless, vermilion. The forehead and eyes are slightly Kuroha, the ear feathers behind the eyes are white to the pillow, and the cheeks, throat and neck are black;

The second and third flight feathers are black, and the third flight feathers are long, curved and arched, covering the tail. Therefore, when standing, the tail is black, but it is actually a three-level flight feather, while the tail, the first-level flight feather and the whole body feather are all white, which is very obvious when flying. The mouth is very long, light green and gray, and the neck and legs are also very long. The long and curved flight feathers between wings are black, and the whole flight feathers cover the tail when standing, which often makes people mistakenly think that it has black tail feathers. Both men and women are similar.

The iris is brown, the mouth is grayish green, and the tip is yellow. The exposed parts of tibia, tarsometatarsal and toes are gray-black, and the claws are gray.

The chicks are covered with tawny down feathers, with light back, deep abdomen, milky white shoulders and red mouth and legs. After 3 ~ 4 months, the body feathers gradually turned white, and the exposed part of the top of the head did not appear red until 10 months later.

The red-crowned crane's skeleton is hard outside and hollow inside, and its strength is seven times that of human skeleton. Moreover, when it migrates, it is often arranged in a clever wedge shape, so that the individuals behind can make use of the airflow generated when the individuals in front flap their wings in turn to fly quickly, laboriously and persistently. The speed can reach about 40 kilometers per hour, the flying height can exceed 5400 meters, and you can sing while flying.

Extended data:

Red-crowned crane (scientific name: Grus japonensis): It is a kind of crane, a large wading bird with a body length of 120- 160 cm. The neck and feet are long, mostly white, the top of the head is bright red, the throat and neck are black, the ears to the headrest are white, the feet are black, the tail feathers and feet are black when standing, the top of the head is red, and the rest are white; When flying, only the second and third flight feathers, neck and feet are black, and the rest are white, which is extremely obvious and easy to identify. The bird's head and neck are brown and its feathers are white and chestnut.

Ethnic groups and small groups that often pair up or get married. In the migration season and winter, several or dozens of family groups often form larger groups. Sometimes there are as many as 40-50 clusters, even more than 100. However, when they are active, they are still scattered in small groups or family groups in a certain area.

At night, they mostly inhabit shallows surrounded by water or the edge of reed ponds, and mainly feed on the stems, leaves, tubers, bulbs and fruits of fish, shrimp, aquatic insects, mollusks, tadpoles, nereis, clams, snails and aquatic plants. Distributed in northeast China, eastern Mongolia, east bank of Russian Ussuri River, North Korea, South Korea and Hokkaido.

The Latin scientific name of the red-crowned crane, Grus japonensis (literally translated as "Japanese crane" in Chinese), was named by the German zoologist Philipp Ludwig Statius Müller in 1776. Mill used to teach science in He Run. 1773- 1776 translated and published Linnai's representative work Natural System, and announced some newly named species. The creatures named this time include red-crowned cranes

Muller named the red-crowned crane 1776, which was the first year of the founding of the United States. In China, this year was the forty-first year of Emperor Gaozong. In Japan, this year was Ernst & Young's five years in Houtaoyuan, both of which were closed to the outside world. On that day, westerners could only know China from Guangzhou and Japanese from Nagasaki. Red-crowned cranes migrate from the northeast of China to the south, without passing through South China, but take Kyushu and Honshu as wintering places. So westerners can only see this animal through Japan. Named "Japanese Crane".