Answer:
The Peregrine Falcon is the Fastest Bird in the the World.
It can reach speed over 322 km/h (200 mph) during its hunting stoop or high speed dive.
Its normal flying speed varies between 64 and 97 kph (40 and 60 mph).
It is able to fly so fast because of its keel, streamlined body and large heart. Keel is a bone that runs down the middle of a bird's chest and belly. The keel supports powerful flight muscles. The wings are pointed with slim, stiff and unslotted feathers, just like winglets in a plane. It has lots of red muscle fibers which increase oxyegen intake. It has a strong heart, highly efficient lungs and air sacs keep their muscles fueled with oxygen.
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