3. The third process is – They keep their legs vertically straight, bring the bodyline at an angle of 45 degrees and then flutter their wings with a great thrust in such a way that the extreme end part of the wings move forward to a large extend. This creates a large pressure in the surrounding air and help them to lift their bodies upward in the air. After this, they flap their wings very fast and move forward.
Look at the Image 6 to Image 8
Image 6
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