Birds increase their body weight in late summer and fall to prepare for winter. They also trap pockets of air around their bodies using their feathers, the U.S. Fish and Wildlife Service reports.

When the weather turns chilly, my thoughts turn to birds coping with cold — sometimes very cold — weather. Usually that motivates me to sound like your mother and write the annual for-Pete’s ...

Many bird leave for the winter, migrating south to warmer climes. Those that stay, however, not only avoid the hazards of migration but can also likely maintain a year-round territory.

Have you ever wondered how birds can stay warm in the cold winter months? Common redpolls are a great example. These energetic foragers weigh less than 15 grams and can survive temperatures that ...

Many bird leave for the winter, migrating south to warmer climes. Those that stay avoid the hazards of migration and maintain a year-round territory. Ever wonder how birds stay warm in the winter?

“During the winter, birds stay busy looking for high-fat and high-protein foods during the day. This builds up fat reserves ...

Three big birds here now, two to stay the winter, surely guarantee big birding pleasure. After all, birds standing four feet tall (or even a foot tall) and weighing ten pounds ...

Scientists looked at birds like the great tit to learn more about how they stay warm during the winter. (hedera.baltica / flickr) ...

Ceramic bird baths can crack under heavy ice and should be drained and covered in the winter, though some products can be kept out year-round if the proper de-icers are used.

While many of the birds that we see in the summer head southward as their food supplies dwindle in the fall, there are other species that stay year round -- and still others that only appear here ...