What did coquettish birds eat when they were young?

Red-crowned crane (English name is Red-Crowned Crane)-a symbol of longevity and a national first-class protected animal. Also known as crane and white crane (in fact, white crane is another kind of crane bird) Kun, there are many names for red-crowned cranes in China ancient books, such as "fairy bird" in Er Ya Yi and "fetal bird" in Compendium of Materia Medica. Red-crowned crane is a kind of crane, named after the "red meat crown" on its head. It is a bird species unique to East Asia. Because of its elegant posture and bright colors, it has the meaning of auspiciousness, loyalty and longevity in the culture of this area. Wild Red-crowned Crane [Edit this paragraph] Animal Science Classification Animalia Chinese Name Crane Latin Name Gruiformes Chinese Name Crane Latin Name Gruidae Chinese Name Red-crowned Crane Alias Crane China Unique China Protection List [Edit this paragraph] Appearance characteristics Red-crowned crane has the characteristics of cranes, namely, three long mouths, long necks and long legs. Adult birds are all white except the neck and the back end of flight feathers, and the skin on the top of their heads is bare and bright red. The legendary poisonous crane top red (also known as crane top blood) is here, but it is purely a rumor that crane top blood is nontoxic. What the ancients called "crane top red" is actually arsenic, which is impure arsenic trioxide. Hedinghong is an obscure statement about arsenic in ancient times. The fat glands on the tail of red-crowned crane are covered with powder (natural feathers). Young birds have brown feathers and a yellow beak. The feather color of the sub-adult is dim, and the red color of the exposed area on the top of the head becomes more vivid after 2 years old. [Edit this paragraph] Red-crowned cranes are distributed in Songnen Plain of Sanjiang Plain in China, Russian Far East and Japan. Wintering in the southeast coast of China, the lower reaches of the Yangtze River, Korea Bay, Japan and other places. In history, the distribution area of red-crowned cranes is much larger than it is now, and the wintering area is farther south, reaching Fujian, Taiwan Province Province, Hainan and other places. Because of its special position in culture, this bird is recorded in detail in local chronicles, which provides detailed information for studying its distribution. It is customary for red-crowned cranes to migrate between breeding grounds and wintering grounds every year. Only in Hokkaido, Japan, keeping birds for the local area and not migrating may be related to the organized feeding of local people in winter and sufficient food sources. The habitat of red-crowned crane is swamp and swamp meadow, and its food is mainly shallow water fish and shrimp, mollusks and some plant roots, which changes with the seasons. The red-crowned crane molts twice a year, Stephane in spring and winter in autumn. This is complete molting, and it will temporarily lose its flight ability. Red-crowned cranes sing loudly, as a signal to define territory, and it is also an important way of communication during estrus. Red-crowned crane is a kind of unisexual bird, and no special circumstances can last for a lifetime. The annual breeding period begins in March, lasts for 6 months and ends in September. They nest in shallow water or wet land with water, and the nesting materials are mostly grasses such as reeds. The red-crowned crane lays a nest of eggs every year, usually 2-4. Hatching is carried out by male and female birds in turn, and the incubation period is 3 1~32 days. A bird is an early bird. Red-crowned cranes are omnivores. In spring, we eat grass seeds and crop seeds, but in summer, there are many kinds of food, including animal food. The main animal foods are small fish, crustaceans, snails, insects and their larvae, as well as frogs and small rodents. Plant food includes reed buds and weed seeds. The breeding of red-crowned cranes is a single bird, and there is no special situation that can last for a lifetime. The annual breeding period begins in March, lasts for 6 months and ends in September. They nest in shallow water or wet land with water, and the nesting materials are mostly grasses such as reeds. The red-crowned crane lays a nest of eggs every year, usually 2-4. Hatching is carried out by male and female birds in turn, and the incubation period is 3 1~32 days. A bird is an early bird. During the breeding period, courtship is accompanied by dancing and singing. It nests in halogen reeds and grass with a certain depth, and lays eggs 1-2 per nest. The incubation period is 30-33 days, and it is an early bird. Sexually mature at the age of 2, and the life expectancy can reach 50-60 years. In the middle and late April, they began to nest and lay eggs in the dry grass on the shoal surrounded by water, and each nest produced 2 eggs. Male and female birds hatch eggs in turn, and the incubation period is 20 ~ 33 days. After the young birds learn to fly, in autumn, the red-crowned crane migrates from the northeast breeding ground to the south for winter. China has established a number of nature reserves such as Zhalong, Xianghai and Yancheng in the breeding areas and wintering areas of cranes such as red-crowned cranes. In Yancheng Nature Reserve, Jiangsu Province, there are more than 600 wintering red-crowned cranes at most a year, which is the largest known wintering habitat in the world. The red-crowned crane was first exhibited in Beijing Zoo in 1954, and successfully propagated in 1964. [Edit this paragraph] Learn history Red-crowned cranes are easy to recognize because of their large size and distinct colors. People's understanding of red-crowned cranes has been accumulated for a long time. China local chronicles are recorded continuously. Red-crowned cranes were raised by people a long time ago, especially in the Tang and Song Dynasties. Now many places have raised red-crowned cranes for viewing. After1980s, special research on red-crowned cranes was carried out, and some information about the distribution, breeding, wintering ecology, behavior and migration of red-crowned cranes has been mastered. At present, the artificial propagation and artificial insemination technology of red-crowned crane has matured. After 1990, the migration route of red-crowned crane was determined according to the research of environmental records and satellite tracking technology. Former names: Ardea (grus) Japan P.L.S. Mü ller, 1776 Grus Japan Gmelin,1778 Antigone Montignsia Bonaparte, 1854 Megalornis Japan Wilder &；; Hubbard, 1938[ editing this paragraph] Cultural significance In fact, the legendary crane is the red-crowned crane, a large wading bird that lives in swamps or shallow waters and is often called the "God of Wetlands". It has nothing to do with pine trees growing in high mountains and hills. Residents in East Asia use red-crowned cranes to symbolize happiness, auspiciousness, longevity and loyalty. It often appears in literary and artistic works of various countries. In the tombs of the Yin and Shang Dynasties, the image of cranes appeared in sculptures. During the Spring and Autumn Period and the Warring States Period, bronze bells and crane-shaped ritual vessels appeared. The elegant image of the red-crowned crane in Taoism has become a symbol of immortality. At present, the State Forestry Administration of China has reported the red-crowned crane to the State Council as the only national bird candidate. A crane is a bird that lives in a swamp. It is a joke to draw it on a pine tree from a scientific point of view. Of course, in the cultural sense, it is another matter. Cranes lay eggs. In ancient times, some people regarded it as a fairy bird, saying that it was viviparous (see Bao Zhao's Fu on Dancing Crane). But the mistake of crane viviparous statement has long been known. There is a record in the Record of Mo Ke Waving Rhinoceros: "Liu Yuancai was eccentric and tasted two cranes. When the guest arrived, he boasted,' This fairy bird is also here. Where does the bird lay its eggs? This bird is viviparous.' Before he died, the gardener reported, "A crane laid an egg at midnight." Yuan Cai said,' Dare to slander cranes!' A few days later, I stretched my neck and fell to the ground. I laid an egg. Yuan Cai sighed:' The crane also lost its way, and I was mistaken by Liu Yuxi's kind words. [Edit this paragraph] Protection Status Red-crowned crane is a large wading bird, which belongs to the upper layer of the food chain in the wetland environment and is a key species of wetland biodiversity. Ainu people in Hokkaido, Japan call the red-crowned crane living in Kushiro wetland "the God of Wetland". At present, the main threat they face is habitat destruction. In the northeast and far east of China, the destruction of wetlands by human activities increased sharply after1960s. Reclaiming wetlands not only invaded the original habitat, but also blocked the originally connected water system. In addition, in recent years, the climate in the Far East has become more arid and the water area has shrunk seriously. The pollution introduced by human activities also threatens the survival of red-crowned cranes. In addition, reclamation methods such as burning wasteland have seriously damaged the nest materials and shelters of red-crowned cranes, resulting in a narrower distribution. Poaching: Since there has been a demand for red-crowned crane feathers and organs in East Asia since ancient times, hunting is inevitable. Although in recent years, with the establishment of protection laws and regulations, direct hunting rarely happens, but poisoning to kill other waterfowl has become an important cause of death of red-crowned cranes. At present, the red-crowned crane is a national first-class protected animal, and the species recorded in the IUCN Red Book are endangered and listed in CITES Appendix I. [Edit this paragraph] The life span of the red-crowned crane is 50 to 60 years. People often paint it with pine trees as a symbol of longevity. Red-crowned cranes are few in number and have been listed as national first-class protected animals. [Edit this paragraph] The Story of Red-crowned Crane The beautiful female college student's name is Xu Xiujuan, and her father is a crane protection engineer in Zhalong Nature Reserve. When Xu Xiujuan was a child, he often helped his father feed the little cranes, and he fell in love with the red-crowned cranes imperceptibly. Xu Xiujuan lived with red-crowned cranes all the year round, and many red-crowned cranes became her friends. One of them always likes to stick to her, and she calls it "Lai Maozi". One day, a reed cutter suddenly thought of poaching. When Lai Maozi approached him defenseless, he was suddenly strangled and tried to kill him. Fortunately, Xu Xiujuan, who was passing by here, heard its sad cry and rushed over in despair, and launched a life-and-death struggle with that man before finally bringing it back to life. From then on, Lai Maozi became more affectionate and attached to Xu Xiujuan ... After graduating from Xu Xiujuan University, he stayed to work in Yancheng Nature Reserve. Yancheng Nature Reserve is the main wintering ground for red-crowned cranes. If the non-migratory wild population of red-crowned crane can be established there, it will be an important breakthrough to protect the endangered red-crowned crane population. Xu Xiujuan tearfully bid farewell to his relatives who were rushing about for their career and came to Yancheng, not far from Wan Li. This trip, as a gift, she took two red-crowned cranes to Yancheng. One day, these two red-crowned cranes, which are usually very regular, did not return to their nests on time after dark. Afraid of their accident, Xu Xiujuan, who didn't dare to care, looked for them for two days and two nights. But who would have thought that in the process of looking for them, she slipped into the swamp and never came up again. The fragility of life always makes people very helpless. A moment's separation may be a lifetime. When two playful red-crowned cranes flew back, they never saw Xu Xiujuan who saved their lives. They can only turn around her, keep lowering their heads with red crowns and sorting out her wet clothes with their long beaks ... Maybe they feel uncomfortable and blame themselves for losing such a good friend. Since then, the two red-crowned cranes have never stayed up all night. When Xu Xiujuan's body is buried on the beach in the reserve, they still like to stand on Xu Xiujuan's grave and call it "Hiccup … Hiccup", as if to tell her what they think. What's even more surprising is that from the day Xu Xiujuan died, Lai Maozi, who was far away in Zhalong Nature Reserve, was unhappy, moaning to the south all day long, and soon died for no reason. After listening to this beautiful and sad story, are you eager to "fly" to this place where touching stories happened one day and see the beautiful red-crowned crane? Animals are human beings, as long as you treat them well, they also know how to be grateful, and they will live in harmony with you! Song-Red-crowned Crane (a song commemorating this touching story) Narrator: There was a girl who loved to raise red-crowned cranes since she was a child. After graduating from college, she returned to the place where she raised cranes, but one day she slipped into the swamp to save the injured red-crowned crane and never came up to cross the river again. Have you ever heard of a girl who once walked on a reed slope? Have you ever heard of girls who leave songs? Why do white clouds cry quietly? Why did the wind tell her? Oh ~ ah ~ there are also a group of red-crowned cranes flying gently over the river. Have you ever heard of a girl who once walked on a reed slope? Have you ever heard of a girl who has never been here again? Only the white clouds shed tears for her, and only the wind told her? Oh ~ ah ~ there are a group of red-crowned cranes flying gently, only the white clouds shed tears for her, only the wind told her.