Answers

2015-06-01T21:48:47+05:30
They fly south is because as the weather becomes colder the food becomes scarcer.Birds often eat seeds and fruits but they can no longer  find those foods when snow is covering them.Therefore birds fly south because there is more food.
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answer is wrong
they migrate ! am i right
2015-06-03T16:44:43+05:30
The birds fly south in the winter for migration, i.e, flying long distances in search of food and laying eggs.
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