why do birds migrate
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Answer:
Birds that nest in the Northern Hemisphere tend to migrate northward in the spring to take advantage of burgeoning insect populations, budding plants and an abundance of nesting locations. As winter approaches and the availability of insects and other food drops, the birds move south again.
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Answer:
Birds migrate because the conditions in their home lands
become unfavourable for them to live in. They migrate in
search of food, shelter and rearing of young ones. When the
conditions improve, they return to their home lands.
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