How do birds fly? How can a bird fly

Birds have a pair of wings full of feathers, and when winged, the outer feathers cover the inner edge of the adjacent feathers, so that each feather rotates slightly, and the two wings fan up and down to produce a huge downward pressure resistance to fly.

Mother Bird finally decided to teach the bird to fly.

She took the bird to a large tree, then taught it how to fly and demonstrated it herself.

The bird looked at his feet and shrank back in fear.

Mother Bird patiently taught him little by little.

The little bird mustered up the courage to spread its tender wings.

Why are you such a bad mother, do you want your child to fall to death? ”

A shrill voice came.

The bird looked down and it turned out to be a mother chicken with a flock of chicks under the tree.

The mother bird said gently: "I am teaching children to learn to fly, which is a necessary survival skill for every bird." ”

I can't fly, I don't live a good life, it doesn't make sense that you have to rely on being able to fly and live in pants? Mother Chicken was puzzled.

Mother Bird choked for a moment.

But I want to see the sea on the other side of the mountain. A childish voice sounded.

It turned out to be a bird talking.

The little bird continued to say to the mother chicken, "I want to learn to fly, not only the sea, but also to see the human city that my father described to me, I have heard that there are many things that are different from Jane, and when I see them, I can tell them to my children." ”

Now it was the turn of the mother chicken to be speechless.

Birds can fly because of their body structure, almost all birds that can fly have large feathers, these feathers are not only light but also can protect against the cold, so that they are not so cold when flying, and the bird bones are very lightweight, and the pectoral muscles are developed to fly by inciting their wings and a unique respiratory system.

The bird flapps its wings downward, causing the lower air pressure to rise and there is a pressure difference, and due to the principle of air inertia, the upper air pressure decreases, and the bird can fly by relying on this pressure difference.

Birds rely on their wings to fly in the air. The wings of a small bird are made up of feathers and bones, and they can create lift and thrust by vibrating their wings. When a bird vibrates its wings, the air is compressed and accelerated, creating an upward force, which is lift.

At the same time, the bird can also generate forward thrust through the movement of its wings, which helps the bird to fly in the air.

Birds rely on their body structure to fly in the air. The body of the bird is very light, and their bones and feathers are very thin, which helps to reduce the weight of the bird when it is in the air. In addition, the bird's body is also very aerodynamic, which helps to reduce air resistance and makes it easier for the bird to fly in the air.

Birds rely on their flying skills to fly in the air. Birds can adjust their flight altitude and direction by changing the position and angle of their wings. In addition, the bird can also use air currents and updrafts to increase its altitude and extend its flight time.

Vertical excavation. <> In short, there are many principles for a bird to fly in the air, including the lift and thrust of the wings, the lightness and aerodynamics of the body structure, and the use of flight skills. These factors work together to allow the bird to fly freely in the air.

Kiss, you weigh the fiber, and the birds fly freely in the sky. It soared into the sky for a while, as if it wanted to be with the white clouds, to see who could fly high, and then it swooped down, and then flew away into the distance. It does a few lines to show its flying skills, it does as it pleases, and it is unrestrained.

Maybe it got tired of flying, and it stood on the branches, chirping, and began to show off its singing voice again.

Summary. Dear, birds can fly around in the air in two ways: flapping wings and gliding flights.

Dear, birds can fly around in the air in two ways: flapping wings and gliding flights.

Dear, small birds can fly around in the air in two ways: flapping wings and gliding flights. Wing flapping is a basic way of flying for small birds, and by flapping the wings up and down, the bird can freely control its body to rise or proceed. This type of flight can be divided into two stages: raising the wings upwards and beating the wings downward.

When lifted upwards, the wings bend and the feathers spread out to form many gaps, through which the air above the wings can flow downward, making it easier for birds to flapp their wings. When the next shot is taken, the wings are straightened and the feathers are brought together to compress the air backwards and downwards. At this time, the air provides an upward lift and a forward thrust to the bird, and the combination of the two allows the bird to fly quickly upwards or forwards.

Alternatively, small birds can also fly through the air by gliding flights. Gliding is when birds use air convection or wind to fly leisurely in the air. This type of flight does not require the flapping of wings, so it is also called "free flight".

Different birds have different gliding effects. For example, some birds can fly in the air for long periods of time, while others can only glide short distances. Small birds usually glide over long distances with the help of the wind, such as rocs, seagulls, etc.

In short, birds can fly around in the air by flapping their wings and gliding to fly or walk, both of which are unique skills that birds have developed over the course of evolution.