Question

Why do birds fly south for the winter?​

Answer 1

With approaching winters coupled with shrinking availability of insects and other food, the birds nesting in the north move towards the south that offer relatively comfortable tropical climes. ... In the southern hemisphere the birds fly north to escape harsh weather and spend winters in the warmer climates.

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Answer 2

Answer:

birds migrate to move from areas of low resources to area has high resources . The two primary sources being sought investing location . As the approaches are the availability of insert and other food drop , the birds move south again .

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