Why do small birds migrate Why do birds migrate

Due to the changes in nature, the migration of elephants and other animals are sentient. I feel that there will be a huge change here, so many small birds choose to migrate.

Because the birds are afraid of the cold, they go to the south every winter to spend the winter, where the winter is lush and the sun is warm. Wait until the following spring, and then fly back.

Reasons for bird migration:

1. The migration of birds is an instinct, is an adaptive behavior of birds to the periodic changes of environmental factors, the seasonal change of climate, is the main reason for the migration of migratory birds, due to climate changes, in the cold winter in the north and the dry season in the tropics, there is often a shortage of food, thus forcing some individuals in the bird population to migrate to other areas with abundant food, this behavior is eventually fixed by the forces of natural selection, and becomes an instinct of birds.

2. Hail bridge migration brings many benefits to birds, mainly in the fact that birds always live in the most suitable climate, and have a rich variety of food ** to create the most suitable conditions for raising offspring, in the north can incubate the most large number of eggs, the season is long, there are abundant insects, the parent birds can have the opportunity to fully collect food, migration can greatly expand the activity space, conducive to breeding and competition for the occupation of the behavior.

There are two reasons why birds need to migrate, one is to go to other places in the season when food is not enough in this area to forage in other places during the season when food is abundant. Another reason is to migrate from the unsuitable climate season in place A to the place where the climate season is suitable for survival in place B.

Some birds need to migrate because the environment they live in is not suitable for them, so they need to migrate to an environment suitable for them to live in order to ensure their survival rate.

Why are there some birds? The reason for living is that if they don't, they won't have food, and generally speaking, if you keep birds, even if it's winter, you can find food in the local area. However, migratory birds cannot find food to eat, so they have to migrate.

It's because of the environment in which the birds live. They need to keep moving. For example, some birds are migratory birds. A certain temperature is required. The geese fly north in the summer. In autumn, when the weather is cold, it flies south to spend the winter.

Some birds need to be humble and live because they are migratory birds that they grow and reproduce. Need for food-rich north. And when it was cold, they couldn't stand it, and they had to run south to escape the cold.

I think it's a bit of a bird, and life needs to be on the eve, this is a basic animal common sense. Even elementary school students should understand that this question is still asked, that is, because people are too cold, they want to go to the south for the winter. Not only are birds migrating, but so are animals.

The reason why some birds need to have a thousand seals in their life is because they are not adapted to the climate and environment, so they need to migrate, so they are called migratory birds, and they live in the north in summer and fly south in winter.

Why do some birds need a future in their lives, and the birds in nature need Qianxi is a change in temperature, so in the past, birds were suitable for forced debts, and when they lived in the temperate zone when it was cold, they did not adapt to the climate. Therefore, they will migrate south to the southern climate, which is more suitable for them to survive, so every year they have this kind of migration.

Bird migration is very responsible, and there are many factors that will be affected, such as climate, temperature, sunshine, food and other temperatures, or the internal physiological factors of birds, all of which will affect their migration. The climate in the north can change dramatically, and food shortages can occur, which can cause birds to migrate. Birds migrate regularly and with the seasons.

Because some birds cannot live in one place for a long time, they are not used to the cold of winter, so they migrate in autumn and winter, and when spring comes, they will return to their original places.

Because not all of the birds are suitable for our environment and air, you have to move as the seasons change.

Because the living environment of the birds is affected by the temperature and temperature, when the seasons begin to change. The temperature and environment around them can no longer allow them to survive, so they can only go to a more suitable place to survive at this time.

Because of the climate, some birds can't adapt to Han Dong, so they have to migrate to warm places. Can't adapt to the climate, these birds are sometimes afraid of cold and heat, they will always migrate to live in places with moderate temperatures, so birds need to migrate to live.

Some birds need to have a stealing joy in their lives, and the reason is. Their survival has temperature requirements. It's better to survive, so they need to migrate.

Birds need to have migratory activities in their lives, because birds migrate according to the climate of their living environment, and they follow the survival instinct of the natural environment. For example, wild geese in China fly south to north in spring and north in autumn.

The problem is this, some birds are migratory birds, the cold weather in the north in winter they can't bear it, and there is nowhere to forage in winter, in order to survive, these birds need to migrate.

Because some birds like to live in warm climates, some birds will migrate in the cold winter to find a more suitable living environment.

The living habit of birds is to migrate to warm places, and in the cold weather in the north, the birds will fly south, and when the weather is warm, the birds will fly back to the north.

Birds migrate in search of a better place to live. Because of the changes of the four seasons, my daughter has to survive in an environment that suits her.

Some birds need to migrate mainly to find food and water, because animals migrate to survive, and they can't survive without food and water!

Birds that do not migrate are called resident birds.

Resident birds: A zoological term for birds that live in an area all year round and do not migrate depending on the season, and they usually live in their birthplace all year round.

Information about resident birds: There are resident birds all over the world, there are many species of resident birds in the south, and the resident birds in the north are cold-tolerant species, and it is difficult for Akeno young resident birds to forage in winter, and every winter, resident birds live together in flocks, and they feed on the fruits and seeds of plants.