How do birds fly?

Birds fly by flapping their wings.

When the wings move down, they push air down and the air pushes the bird up. As the wings move up, the air pushes the bird back down. The air helps the bird stay up in the sky.

Birds can also use the air to help them turn and move in different directions. They can flap their wings faster or slower to help them go up or down.

Birds fly by using their wings to push off the air. The air passing over the wings creates lift, which helps them stay in the air.

When a bird flaps its wings up and down, the air passing over the wings creates a pressure difference, which causes lift and helps the bird stay in the air.

The wings are also curved, which helps create lift, too. The bird can then move its wings up and down to stay in the air and change directions.

Birds fly by using their wings to create lift.

When a bird flaps its wings, it creates an area of low pressure above the wings and an area of high pressure below the wings. This difference in pressure causes the bird to be pushed upwards, which is called lift. The more a bird flaps its wings, the more lift it creates and the higher it can fly.

Birds also use their wings to move forwards, which is called thrust. When a bird flaps its wings, it pushes air downwards, which creates a reaction force that pushes the bird forwards.