Why don't birds freeze in the winter?
They have feathers to keep them warm and their nests are surprisingly warm some birds even migrate to warmer countries for the winter
They swim about slowly in a circle (sometimes with other aquatic birds) as a group which prevents (up to certain temperatures) the water around them from freezing. ------------ The blood flows throughout the body and helps maintain a steady temperature. So the ducks don't freeze to death or shrivel up and die.
I have been feeding squirrels peanuts and my blue jays go crazy for them. I am worried about winter here in NJ as if I have to feed them all winter or not. I buy $40. and love watching these beautiful birds eat but do not want them to freeze as our winters have been getting pretty bad with snow and cold. If I stop feeding them will they go somewhere south where it is…