Pretty amazing......would wonder about ventilation.
Of course it's well ventilated @aart. I learned that from you. The run is wrapped in heavy duty shower curtains with more than enough room for ventilation. I don't keep any water inside the coop normally, but have had to accommodate the molting hens by giving them water in a small bowl during the day. No night time water at all. I clean their poo from under the roost everyday so no moisture build up there. Their coop is a thick walled converted shed and they get clean shavings everyday. When the sun comes up the molting hens get moved to the old rooster bachelor pad.
My oldest girls will be 6 years old this spring and they have all done well throughout our winters with no heat. You're doing everything right and @aart is so correct in that first winter is always the hardest and most nerve wracking, but they really are quite tough if you have cold hardy breeds. The only things we do to winterize is use extra bedding, a heated waterer and we wrap a portion of their run in plastic, so exactly what you are doing. Here's a pic of our setup. The front and back eaves of our coop are all open ventilation covered with hardware cloth and other than that, we close up their windows and they are good to go! Rest easy....it's our hot summers that are far more concerning. Oh, btw...my girls love Grubblies!
