Question

why are some birds and able to fly even through they have wings?​

Answer 1

$\huge\mathcal\green{Answer}$

Their wing bones are either missing or smaller for their body size than the wing bones of the tinamou. That's a related bird that can fly. Flightless birds have a sternum (in this picture, the lower bone in the chest). But they're missing another bone called the keel bone, where flight muscles attach.

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Answer 2

Hey

Here is your answer

Some birds are unable to fly even though they have wings because of their body weight. Example- hen, ostrich etc.

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