How Do Birds Fly?


Birds fly by flapping their wings. When its wing flaps, a resistance of the air to the wing produces an upward reaction on the wing. This force is transmitted through the birds coracoid bones to the sternum, and through the bird's centre of gravity, lifting it as a whole.
1 Additional Answer
Birds fly by moving their wings and controlling dynamic air flow. Most have light hollow bones and contoured feathers that make flight possible. By changing the position and shape of their wings they are able to ride air currents. You can find more information here:
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