Thank you! Your post answered several of my questions. My Polish is loosing feathers all over the place but she's not yet 6 months old. Did not know about the juvenile molt! And I use sand in my coop too and was wondering if it was going to be warm enough this winter as I keep reading that straw is such a good insulator. If you're in Canada and use sand...then I'm not going to worry about our Virginia winters LOL. Being on the coast, we do get some very strong blows and nor'easters though but I know our temps cannot be as low as yours. I do have a question for you...do you leave the heat lamp on all the time? I only used one in my coop when I first put our babies out because the night time temps were still a little low. I've been told by several folks not to heat the coop in the winter because the birds would not become acclimated to the temp changes. Also, I moved my waterer out of the coop to the run because the sand was staying wet around it and I did not want mold to form. Do you not have an issue with wet sand around the waterer? Only my feeder is in the coop now. Thanks in advance for your advice!!