Question

What are the features, that help a bird to fly?
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Answer 1

Answer:

lightweight, smooth feathers – this reduces the forces of weight and drag. a beak, instead of heavy, bony jaws and teeth – this reduces the force of weight. an enlarged breastbone called a sternum for flight muscle attachment – this helps with the force of thrust

Explanation:

hope it helps

Answer 2

Explanation:

due to their streamline body its easy for them to cut the air and fly easily

they wings are also their important feature which helps them fly . a low pressure area is created under their weather and high pressure area is created above their wings which also is an interesting feature.