What is the hibernation mode of swallows and where do swallows go for the winter in winter

As early as thousands of years ago, people knew the flight law of swallows from autumn to spring. The flying habits of swallows, ancient poets once described them like this: "In the past, Wang Xie Tang Qianyan flew into the homes of ordinary people", "Helplessly, the flowers fell, and the familiar swallows returned."

In the autumn before winter comes, the swallows make their annual long journey—flying in flocks from the north to the far south, where they enjoy the warm sunshine and humid weather, leaving the frost and bitter cold winds of winter to the chickadees, grouse, and ptarmigans, which never fly south for the winter. On the surface, it is the cold of the winter in the north that makes the swallows leave their hometowns to spend the winter in the south, and then return to their hometowns from the south to have children and live and work in peace and contentment when the spring flowers bloom. Is that really the case?

Not really. It turns out that swallows feed on insects, and they have always been accustomed to hunting flying insects in the air, and are not good at scavenging for insect food in the crevices and crevices of trees, nor can they omnivorous berries, seeds, and leaves in winter like oak grouse and ptarmigans (coniferous species do not lose their leaves even in winter). However, in the northern winter, there are no flying insects for swallows to feed, and swallows cannot dig for the larvae, pupae and eggs of lurking insects like woodpeckers and woodpeckers.

The lack of food makes the swallows have to make a great migration from autumn to spring every year in order to get a broader living space. Swallows have become "nomads" in the bird family.

Swallows don't need to hibernate, it will fly from the north to the south for wintering (sincerely answer for you, please feel free to set it as "praise" Oh, you don't have anything to lose, thank you!). ）

Fly to the southern hemisphere for the winter.

Swallows are migratory birds, and they fly to the "south" every year to spend the winter, and the south here is not south of the Huai River line of the Qinling Mountains, but the guide hemisphere, and many swallows will fly to Australia and other places to spend the winter.

The reason why it is necessary to fly so far is because of the obvious seasonal distribution of the swallows' food. Swallows have a very light body structure, a streamlined body, and long and pointed wings, which are conducive to their flight in the air. However, swallows are so adapted to flight that they have weaker foot strength, so it is difficult for us to see swallows bouncing up and down the road, unlike sparrows.

Swallows rely on their super flying ability to catch food in the air, and almost all of their food is flying insects. Only in the season of food shortage, the fruits of crops are fed.

During the cold season, insects freeze to death or burrow into the soil to overwinter, while swallows migrate to the warmer southern hemispheres because of their short beaks and difficulty digging deep into the soil to catch enough food.

Other: The migration of swallows is not always easy, and they often face many challenges, such as the fact that there is little land in the ocean for them to rest.

Even if there are islands in the ocean, it is often possible that poisonous snakes lurk on these islands, which specialize in preying on migratory birds that settle down.

The climate in the oceans is changing unusually fast, and the winds and rains during migration can directly threaten their lives.

Of course, there are also some swallows that rarely migrate in the tropics and become local resident birds. This is due to the fact that the temperature is high throughout the seasons and there is no significant seasonal difference in food, so they can continue to survive in the winter months.

Swallows fly from the north to the south every year for the winter.

Swallows are migratory birds that return from the south to the north from March to May every year to find mates, build nests, and breed. From September to October every year, they migrate to the "south" for the winter. In China, the Qinling Mountains and the Huai River are divided into north and south, but the swallows migrate not only south of the Qinling Mountains and the Huai River, but also Australia, Africa, South America and other places in the southern hemisphere.

Swallows that live and tease in different regions have different migration destinations, for example: swallows in northeast China may migrate to Guangdong, Southeast Asia and other places for wintering; Swallows in Yunnan, Guangdong, Guangxi and Southeast Asia are more resident birds and do not migrate; Swallows living in Xinjiang may migrate to Africa for the winter, while swallows living in eastern China may migrate to Southeast Asia and Australia for the winter.

The purpose of the swallow migration

The reason why swallows migrate is actually limited by their physical conditions. Swallows belong to the category of carnivorous birds and feed on insects. Over the course of hundreds of millions of years, they have evolved the skill of aerial hunting, and their ability to hunt in the air is very strong.

Correspondingly, their body structure is also very adapted to prey on flying insects, for example: scissor-like tails can help them quickly adjust their flight posture; In order to reduce energy consumption as much as possible, their legs and commas have become so slender that it is difficult to walk around the ground.

Every winter, does the little swallow fly to ** for the winter? The answer is a bit subversive.

Swallows spend the winter in the warm, humid south. Swallows are typical migratory birds, and after breeding, the young birds still follow the adult birds, and gradually form a large flock, migrating south to overwinter before the first cold spell arrives. Because swallows feed on insects, and they have always been accustomed to preying on flying insects in the air, they are not good at scavenging for insect food in the crevices and crevices of trees, nor can they omnivorous berries, seeds, and leaves in winter like oak grouse and ptarmigans (some coniferous species do not lose their leaves even in winter).

However, in the northern winter, there are no flying insects for swallows to feed, and swallows cannot find lurking like woodpeckers and woodpeckers.

Every winter, does the little swallow fly to ** for the winter? The answer is a bit subversive.