Question

Migratory birds leave their place at particular time duration and migrate to other places ​

Answer 1

Answer:

Ok it's true that Migratory birds leave their place at particular time duration and migrate to other places

But what is the question here?

Answer 2

Answer:

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Explanation:

Bird migration is the regular seasonal movement, often north and south along a flyway, between breeding and wintering grounds. ... It occurs mainly in the northern hemisphere, where birds are funneled on to specific routes by natural barriers such as the Mediterranean Sea or the Caribbean Sea.