birds puff their feathers in winter... why?
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A bird's body heat warms the air between its feathers. So birds fluff up in the cold to trap as much air in their feathers as possible. The more trapped air, the warmer the bird.
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a bird's body heat warm the air between its feathers so Birds fluff up in the cold to trap as much air in their feathers as possible the more trapped air it warms the bird and the birds puff their feathers in winter ..
ravishankar1011:
i am from varanasi
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