Question

Why do birds puff up their feathers in winter?​

Answer 1

• “A bird's body heat warms the air between its feathers,” Marra explains. “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.” 

Answer 2

Answer:

The Correct Answer is mentioned below

Explanation:

During the winter, birds frequently puff or open and close their wings. Birds trap air between their feathers when they puff up their feathers. We also know that air is a poor conductor of heat and a strong insulator of heat, preventing the heat from the bird's body from escaping or flowing out. As a result, they stay warm even in cold weather.

Also, the larger the feathers, the more air they trap, the more insulation they provide, and hence the more warmth they provide. Puffing occurs more frequently in small birds with small feathers than in large birds with larger feathers. During the winter, birds' feathers are meant to keep them warm and dry. The feathers are coated with an oily material that serves as a waterproofing agent.