Why do birds build nests in trees? How are they protected from rain?

Why do birds build nests in trees? How are they protected from rain?

1.The main purpose of nesting birds is not to build a warm home for themselves, but to reproduce. However, the nesting habits of different birds vary greatly. Some birds nest in trees, some on the ground, some in reeds, and some in grass.

Middle. In addition to the different nesting sites, the nesting materials of the birds are also different. Some birds with grass, some branches, some mud, and so on.

Any bird will build its own nest during the breeding period, such as our common swallows, sparrows and other birds, among which swallows do not nest during the winter in the south (the south breeds in the southern hemisphere, and sparrows generally find a secluded place to perch during the non-breeding period.

2.Concealment is to avoid being detected by natural predators as much as possible in order to increase the survival rate of offspring. Ventilation is also important because most of the chicks eat and drink in the nest, and ventilation is not conducive to the reproduction of bacteria.

After the chicks hatch, it is convenient for the adult birds to go out several times a day to forage for food, and warmth and comfort are generally achieved by laying some soft grass in the nest. Warmth is usually not required during the day (most birds breed in the summer), and at night the chicks or eggs are kept warm by adults.

3.Because birds can fly and are small enough to resist the harm of other animals, they are not harmed by other animals. They prefer a quiet environment to avoid being frightened by the outside world.

Generally, they build their nests on tall and leafy branches, which are not easy for other animals and birds to find, and can provide shelter from the wind and rain, creating a safe and comfortable home for birds. However, there are also those that do not build nests in trees, such as sparrows, swallows, bats, etc. , who like to go along the roof of the house, each has its own habits.

4.Temporary shelter for birds depends on their body structure. is characterized by the feathers that most birds have.

Feathers are keratinized body structures that evolved from the epidermal cells of birds. Lightweight, resilient, tough, daily flying, warm, waterproof, indispensable. Birds are relatively hardy species and need to keep their body temperature around the limit to ensure the proper functioning of their bodies.

The cooling brought about by rain is deadly and requires feathers to resist. The warm air masses mix with the tiny hairs in the feathers and help the birds maintain their body temperature. The fluffier the feathers, the warmer the body.

The premise of keeping warm is not to let the feathers seep water.

Mainly because it is safer to build a nest in a tree and not be attacked by wild animals. They rely on the leaves of the trees and the nests they build to protect them from the rain.

The first is to open the mouth upwards, which is more conducive to avoiding danger. Because most birds nest in a relatively low location, natural predators such as rodents and snakes are easy to visit, and the second is a nesting site. When most birds build their nests, they will choose places with shelter above, such as swallows under the eaves, and many birds choose places with dense foliage on them, which have a certain shelter effect.

Birds build nests in trees because they are safer. They generally choose places with dense branches. This will protect you from the rain.

Most birds build nests not to create a home for themselves, but only to meet the needs of reproduction. These birds, who do not keep their nests at home, often rely on their powerful feathers to provide shelter from the wind and rain when heavy rains come. Because they have the ability to face wind and rain, this is also biological evolution.

The corollary.

Birds need to maintain a constant and high temperature during the hatching process, and newly hatched birds need to be kept warm without feathers. Therefore, the baby bird needs a warm home during the hatching and growth stage, so the adult bird builds a nest. The shape of the bird's nest is often a round nest with an opening upward, which has many benefits, first of all, it can meet the survival needs of the bird during hatching and growth, and at the same time, the bird's nest opening upwards can ensure that the bird will not fall off, and it is also convenient for the adult bird to fly in and out to find food to feed the bird.

However, the nest with the opening upwards is not waterproof, which requires the hard-working adult bird to use its body to shelter from the wind and rain when it rains.

When birds encounter heavy rain, there are generally two ways to take shelter from the rain, one is to take shelter from the rain under the eaves or in the dense woods, such as sparrows. But most of them are in the rain, and the bird's fear of being caught in the rain has a lot to do with its feather structure. There are two types of feathers: feathers and down, and the thick feathers on the outside have a strong waterproof function.

When it rains heavily, birds generally do not fly, but stand there with their wings closed, and most of the rain runs down their wings. Even if some rainwater wells go under the feathers, it will encounter down. But the down underneath the feathers is better for insulation and waterproofing.

The bird also has a classic water-shaking action that shakes off most of the water. All of these characteristics ensure that the birds are safe and sound in the water.

For birds, nesting is hard, but it is also a need to hatch the next generation. When faced with heavy rain, they either choose to take shelter from the rain or rely on their own ability to face the heavy rain head-on.

Birds build nests to let themselves have a resting place, the most important thing is to hatch birds in it, they generally choose to build a nest in the corner of the house, so as to effectively avoid heavy rain.

Birds build nests to reproduce, and when it rains, they take shelter from the eaves of their roofs.

1. Burrowing owls do not build nests in trees.

2. The burrowing owl takes the cave abandoned by rodents as its nest, or makes its own hole as its nest, and the servant likes to decorate his nest with a variety of animal feces. The burrowing owl, also known as the burrowing owl, is a bird of the order Owls and the old withered family of owls. The body length is 19-25 cm, the wingspan is 55 cm, and the weight is 170-214 grams.

It is a small owl that lives in a cave on the ground.

You can hide under people's eaves, inside tree hollows, under grass, under leaves, these places can hide from the rain.

The birds will hide under the eaves to hide from the rain, because being under the eaves will not cause their feathers to get wet and will not affect their flight.

When it rains heavily, birds usually choose to take shelter in their nests under the eaves to prevent them from getting wet.

They may hide in some trees or in their nests, or they may hide under the eaves, they are very intelligent and will hide in some places where there is no rain.