Question

3
Migratory birds leaves their place
at particular time duration and
migrate
to other places.​

Answer 1

Answer:

Bird migration is the regular seasonal movement, often north and south along a flyway, between breeding and wintering grounds.

Explanation:

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Answer 2

Answer:

because the place where they live is much colder then their efficiency so they eat for 5-6 days for energy and then all together starts to fly and finds for a place that is suitable for them till winter and then go to their country this is called migration  

Explanation:

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