Question

why do birds migrate?

Answer 1

Hey mate...^_^

Here's ur ans. ------

Birds migrate because of the untolerable
weather conditions .

They usually migrate in summers .

One more reason is in search of food .

Answer 2

here your answer.
in search of food to eat becouse on climate changing food resources become decresese.
so bird move one place to another.
I hope it is clear to you.