How do birds stay warm during the winter?

Birds' feathers provide a remarkable amount of winter insulation. Many birds will grow more feathers for winter protection. Their feathers are coated in a special oil for warmth and waterproofing. A bird can control the temperature in their legs to conserve warmth and prevent frostbite. Bird legs also are covered in scales to minimize the heat loss.

Birds will build up fat reserves as winter approaches to keep them warm and provide much needed extra energy. Be sure to offer suet and seeds with high oil content such as sunflower seeds and golden safflower. Birds will flock in large groups and roost together for warmth.