We are expected to be between zero and 20 over the next few days. I am really worried about my flock. We hardly ever see temps this low and only usually go below freezing just a few times a year so my coops are not well insulated like some up north may be. I have my 4 month olds in the "best" coop and my 20 month olds in the lesser coop but they free range during the day and stay outside most of the time even when it's supper cold. I have tried to cover the major drafts by stapling tarps around the outside. I have added lots of fresh staw and pine shavings and have heat lamps in both coops. I am trying to give them warm water but I work during the day so they only get it at 6 am and 4 pm. I am giving extra scratch which has cracked corn in it and I have put out an extra feeder for the non free range ones. What se can I due to protect my birds over the next few days? I really don't want to lose any.