Question

Why do biods migrate?​

Answer 1

Why do birds migrate? Birds migrate to move from areas of low or decreasing resources to areas of high or increasing resources. The two primary resources being sought are food and nesting locations. ... As winter approaches and the availability of insects and other food drops, the birds move south again.

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Answer 2

birds migrate to find the best ecological conditions. when the abundant resources decreases so they migrate to find habitats for feeding, breeding and raising their young ones.