Question

how do feathers protect the bird from cold

Answer 1

The feathers of a bird have small air pockets in them as we know that the air is a bad conductor of heat, it does not allow the heat of bird 's body to transmit and loose it heat. Hence the feathers of the birds protect them from the cold.

Answer 2

The feathers of a bird have small air pockets in them as we know that the air is a bad conductor of heat, it does not allow the heat of bird 's body to transmit and loose it heat. Hence the feathers of the birds protect them from the cold.