Question

Why do birds fluff their feathers to keep themselves warm?

Answer 1

Fluffing of feathers, a bird traps air to hold in body heat and keep out the effects of cold.

Explanation:

1. Fluffing of feathers, a bird traps air to hold in body heat and keep out the effects of cold.
2. During hot weather, the bird presses its feathers towards the body to eliminate the insulating air.
3. It allows body heat to escape.