Question

Where do birds fly? Why do they fly ? Why can't they
walk?

Answer 1

Answer:

Hey mate,

Your answer is as follows:

It is physically impossible for these birds due to the fact that their legs are positioned towards the rear of their body. Their legs were built for swimming under water. When they breed and nest, they usually hop.

Explanation:

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Answer 2

Answer:

Hello mate.

Here is your answer.

Birds fly in sky.

Birds are able to fly because their wings create airfoils that can split the air.

We can't fly because the humans arms have not good shapes for airfoils. As we try to flap but we won't fly.

If we look closely to birds wing from side, we will notice that it curves. If we follow along the age,we will see it's larger on one end than the other. The shape of the whole wing, and even some of the individual feathers,helps make ir possible for the birds to fly.

Because of all this reasons birds are able to fly and we are not able to fly in sky.

Hope it helps you.