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say to me, “I saw a great big Cardinal at my feeder.” In fact, all Cardinals are the same size. This fluffing traps warm air next to a bird’s skin. Though a bird’s legs and feet have very few nerve endings, they do experience soem cold there. Consequently a bird will stand on one foot and tuck the other up into the warm feathers.
To conserve body heat and slow metabolism, some birds remain very still on a perch in intense cold. I have seen Mourning Doves perch for long minutes on the bare branches of tree while snow accumulated on their backs.
Where do birds spend the long winter nights? Once I
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