What are these chickens gonna do up here in the winter, My summer is pretty short. The place that I picked my chicks up just had them in a coop and a little area outside that was shielded from the snow fall. The guy said they would tolerate some pretty bad cold. What kind of temp do I need to start worrying about them? Any info on this subject is greatly appreciated. I have Wyndottes right now. It can get 20 below sometimes where I am at but most often is in the single digits to low teens.