The temps are dropping again. Since many ask about the hardiness of ducks on these pages, I figure this is a good example. When this picture was taken today, it was 0F, cloudy with a brisk wind. The ducks came in the house (11F air temp.) an hour early and as you can see, most opted not to be under the heat lamp (at 4-1/2ft. off the ground that spot is warmer, but in no way hot). In fact 2 are by the open door. At these temps, if the sun is out and it's not too windy, they will be running around having fun. At -20F, they spend most of the day in the house (then around -9F), but only spend a little time under the lamp. I think the biggest thing they need is shelter from the wind. The house has plenty of ventilation, but all the holes are up high so they don't get a direct draft.