Well, I kind of agree, but not my wife, who every night when she goes to gather the eggs and close the chicken house door, pets and hugs many of the hens goodnight. Yet since those chickens are not too smart, and when it rains they don't seek shelter in their house, thus getting drenched (whereas their wild cousins try to stay dry hiding under branches or bushes or overhangs), when the temperature is below fifty even I feel that turning on at least one of the two heat lamps in the chicken house during the night is not a bad idea. Birds can resist the cold quite well, but not when they are soaking wet.