The shore of the sea, the tidal flat landform, there is a large reed marsh. It has reached the early spring season. The water plants are lush, and the steaming surface is floating with a faint water vapor, emitting silver flashing light. This is the habitat of red-crowned cranes and , and the place where migratory birds land.
Every year, the red-crowned crane will arrive at the breeding ground and start to pair up to build nests. The male bird sang loudly, flapping its wings, raised its head wearing a red ball crown, and its mouth pointed towards the air, sending a message of courtship. The female birds responded, jumped and danced with each other, sometimes kissed each other, sometimes bent their knees and bent down, stepped constantly, jumped up into the air, picked up small stones and threw them into the air, expressed their love in different postures, and finally got married and nurtured new life.
The breeding period of red-crowned cranes is from 4 to 6 months. The nest should be built on a large open reed swamp or aquatic grassland. The nest should be in reeds with a certain depth of water or in a high water grassland. It is composed of reeds, Ula grass , Triangle grass and Reed flower , and the nest is shallow disk-shaped. Two eggs are laid in each nest, and the male and female birds take turns to incubate in the nest. The incubation period is 30 to 33 days. The young birds become prematurely and can stagger and walk after they come out of the shell. After 4 to 5 days, they can leave their nests and swim in shallow water with their biological birds. The young birds grew up under the care of their parents and reached the opportunity to spread their wings and fly high. Under the leadership of the crane head, they migrated to warmer and food-rich wetlands. Sexual maturity at the age of 2 can reach 50 to 60 years.
Although red-crowned cranes are animals on the verge of extinction, humans are still shocking to the damage to their living environment. The biggest harm is to cut the reed marsh on which the red-crowned cranes rely for survival and sell them for money with reed mats. In this way, red-crowned cranes cannot even find the materials for making nests, so how can they survive the winter safely?
The ingredients of red-crowned cranes are also a problem. There are many animal foods, including small fish, crustaceans, snails, , insects and their larvae, etc., and also frogs and small mice. Plant-type foods include buds of reeds and weed seeds. But ordinary people look for shellfish and sand silkworms on the mudflats and (as fishing bait), so that the area where red-crowned cranes live is reduced. Some people even dig a pond to raise fish. The red-crowned crane moves in shallow water. Its elegant neck, long mouth, and thin legs are all top species that have evolved for a long time. They cannot eat fish raised in deep water in the pond.
There are many idioms that come from people's love for red-crowned cranes. Cranes live long and stand out from the crowd of chickens; idle clouds and wild cranes; cranes cries in the wind. In Eastern culture, red-crowned cranes are a symbol of longevity and a role model for harmony between husband and wife. Red-crowned cranes are monogamous. Once they become partners, they will stay together for life, raise their descendants together, and let their population continue to grow and grow, and live a life of life.
Human beings cannot fly, but generations of dreams are to be able to fly to the sky. They think that as long as they have the wings of birds and have enough arm strength, they can fly into the air with the wind, cross thousands of mountains and rivers, and come to the fairy island, they can live for a hundred years. So cranes became the target of their hunting, in order to pull out their feathers, eat their flesh, and fly into the air when their bodies become lighter, so that the crane group will face huge disasters and be in danger.
