The weather is getting colder, and many migratory birds are starting to fly south for the winter, so

There is no fixed place in the south, and for many migratory birds, the south is a place where food is plentiful. The weather is getting colder, and many friends think that the drop in temperature will freeze the migratory bird to death, forcing it to migrate south. In fact, this is not the case, many biologists have confirmed that migratory birds are not weak in their resistance to cold, and they have thick feathers on their body surface and are not afraid of cold.

Migratory birds migrate south due to a lack of food, and the purpose of their southward migration is to facilitate their search for food.

Migratory birds, like resident birds, are homeothermic animals, and they have thick feathers on their bodies and are very adaptable to the cold. It migrated south not because of the cold but because of the lack of food, and it moved south only in search of abundant food. When the weather is cold, many insects begin to hibernate and even begin to reduce their activity, which makes migratory birds unable to hunt normally, and only by choosing an area with more abundant food can it survive.

Exactly,It has been confirmed that all migratory birds have relatively high food requirements, and their food is often live insects. The requirements for food are relatively low, simply put, they eat everything, such as magpies. It also eats insects when the weather is right, and even grass seeds when the weather is cold.

The distance traveled by migratory birds to the south is different, some of them move relatively closely, and some of them move relatively far. For many migratory birds, their southward migration is only a migration from the mountains to the bottom of the mountains, and only a small number of migratory birds will migrate long distances. But even if it's a long-distance migration, it doesn't fly all the way south as most people think, but gradually moves towards warmer places.

In this process, they may fly north and then south, and it is not difficult to see that the so-called south migration of migratory birds is not a fixed place, but a place where food is relatively abundant.

The southward migration of migratory birds is to go to places where food is relatively abundant in constant flights, and to temporarily survive in places where food is relatively abundant. When the temperature starts to rise in the north, migratory birds will fly back from places where food is relatively abundant to be able to breed the next generation.

Although migratory birds do not arrive at their destination at one time, and there will be several or even many pauses in the middle, the farthest distance of migratory birds can reach tens of thousands of kilometers. This makes many people question, why don't migratory birds find a place where the four seasons are relatively inconspicuous to live in a fixed place? The reason for this is simply to reproduce the next generation.

If you know a little bit about birds, you will know that most migratory birds are originally from the tropics. The reason why it will fly tens of thousands of kilometers to breed in other places means that the place of origin is not suitable for the breeding of migratory birds. In other words, the place of origin is highly competitive for reproduction, and only in the north can good conditions for reproduction be obtained.

The weather is getting colder, and many migratory birds begin to fly to the south for the winter. For migratory birds, the south is a place where food can be plentiful, and its long-distance migration has a lot to do with the reproduction of its offspring, and the whole migration has become a miracle of nature.

The geese fly southward not in the geographical sense of the south, but rather in relation to their original habitat, they prefer the south.

The weather is getting colder, and many migratory birds begin to fly to the south for wintering, for migratory birds, there is no fixed place in the south, but a place with plenty of food.

Although it is very cold in the south in winter, the food in the south is abundant, which is the main reason why migratory birds fly south in winter.

1 Because in the winter in the north, the food that can be provided to migratory birds is greatly reduced, and the water surface in the north is basically frozen in winter, which basically loses the food for the birds that feed on the animals in the water, and a large number of insects will also enter hibernation.

2 Caught in a state of food shortage, but don't think that the southward migration of migratory birds is from the north of our country, flying to the south of our country such a short distance, in fact, most of the migratory birds move southward, far more than the distance of the dry country, which may fly to a certain place in the southern hemisphere, then you may ask, since these migratory birds have to fly to the south every year, why not simply live in the south for the cave cherry ants, but in fact, the south is often moist and humid.

It is not suitable for some birds, and if all birds survive in the south, food will also face a big problem, which will threaten the survival of birds. So don't underestimate the southward migration of migratory birds.