Why do swallows fly south in winter, and why do swallows fly south in winter?

Swallows fly south in winter for the following reasons:

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 winds of winter to the chickadees, grouses, 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 tree crevices and crevices, 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 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.

<> swallow is a collective name for 74 species of birds in the passerine swallow family. The shape is small, the wing tips are narrow, the tail is concave and the beak is short, the feet are weak, and the feathers are not too much. The feather coat is monochromatic, or has a metallic blue or green sheen; Most species are similar to both sexes.

Swallows spend a lot of time catching pests in the air and are one of the most flexible passerine species, mainly feeding on mosquitoes, flies and other insects, and are well-known beneficial birds. Nest in tree holes or crevices, or drill holes in sandy banks, or stick mud on walls or protrusions in corridors, roofs, eaves, etc. in urban and rural areas. 3 7 eggs per lay.

Why do swallows fly south to spend the winter in winter? The most critical reason turned out to be this problem!

Reason 1: Because, swallows are afraid of the cold, while the south is warmer, reason 2: You have to ask the swallows.

Why do swallows fly south in winter?

Answer: The south is warmer.

Swallows fly much faster than they go!

It's because it's so cold in the north.

Because it's too cold in the north, is it hot in the south?

Swallows don't have to fly, do they still need to go???

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 they have to fly so far is because the swallows' food has a clear seasonal distribution of spoils. 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 because the temperature is high in all seasons, and there is no significant seasonal difference in the food level, so they can continue to survive in the winter months.

The swallow is a migratory bird that flies from the north to the south in flocks around November before the onset of winter, and returns to the north in March when the spring flowers bloom and live in peace and contentment.

Extended Material: Swallows are excellent air travelers. In autumn and winter, they fly from their home Siberia in flocks to the south of our country to spend the winter. The following spring, they return to Siberia after a long journey to lay eggs for breeding.

Humid environments tend to trigger a variety of diseases, so the brood room must be spacious, bright, well-lit and well-ventilated. The bedding should be clean, dry and mildew-free, and the utensils should be cleaned, dried and disinfected frequently. The sports field should be cleaned every day to maintain hygiene.

Garlic juice and penicillin can also be fed to feed or drinking water to prevent diseases.

Humid environments tend to trigger a variety of diseases, so brooding rooms must be spacious, well-lit, and well ventilated. The bedding should be clean, dry and mildew-free, and the utensils should be cleaned, dried and disinfected frequently. The sports field should be cleaned every day to maintain hygiene.

Garlic juice and penicillin can also be fed to feed or drinking water to prevent diseases.

Swallows in Chinese mainland eventually choose to spend the winter in tropical provinces such as Hainan, Yunnan and Taiwan, as well as tropical regions such as Southeast Asia. Swallows from some East Asian countries will migrate to Southeast Asia and Australia, and swallows from Central Asia will go to India in South Asia to spend the winter. European swallows are even more powerful, crossing the Mediterranean and the Sahara Desert to spend the winter in as far south Africa.

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 of the mountains.

Swallows return from the south to the north from March to May every yearFind a mate, build a nest, and multiply here. 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.

Reasons for the migration of swallows.

Swallows are so adapted to hunting in the air that they are not good at looking for insects in the woods and crevices of the ground, they cannot scratch the ground like chickens and look for insects under the ground; Nor can a sparrow have a long, pointed beak that can catch insects in trees.

Therefore, when winter comes every year, in order to resist the cold winter, insects either die one after another and use eggs to survive the winter; Either hide in the walls or the soil, and the food for the burning orange swallow will be greatly reduced. In order to survive, they can only migrate to the warmer south, or even to the southern hemisphere. Only a few swallows that remain in the tropics may not migrate, because the food is warm all year round, and there is no season for food**.