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How do birds stay warm in the winter?

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Birds have many physical and behavioral adaptations to keep warm, no matter what the low temperatures of their surroundings. Feathers: Birds' feathers provide remarkable insulation against the cold, and many bird species grow extra feathers as part of a late fall molt to give them thicker protection in the winter. read more

Birds have many superb adaptations that allow them to survive even in the most frigid conditions, and birders who understand what birds need to keep warm can easily help their feathered friends. Bird Body Temperatures. Birds are warm-blooded animals that have a much higher metabolism, and thus higher body temperature, than humans. read more

Winter is a challenging time for backyard birds such as cardinals, woodpeckers, nuthatches, chickadees, titmice and wrens. But roosting in tree cavities, bird boxes and an assortment of makeshift shelters can help these birds stay warmer at night and give them an energetic edge. read more

Birds like chickadees take staying warm a bit further by entering a state of torpor to stay cozy during severely cold winter nights. During torpor, the body temperature may drop between 10 to 15 degrees, but could be as much as 50 degrees. read more

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