I am in Tn and the weather here has been ridiculous. The past week or two the weather has gone from consistently in the 20's to several days pouring rain and in the mid 50's then all the way down to single digits for 2 days, then back up to the 40's and raining, now it is back in the 20's. The end of this week and until next Wednesday is supposed to be high 55, low 22 with precipitation in the 40+% One of my roosters has pretty significant frost bite and one of my others has the beginnings on the tips of comb. The coop is a walk-in coop. It is very well ventilated. It has sheet metal as 3 walls and roof, with wooden pallets lined with cagewire as the front wall/door. The floor is about 6" of sand. I have covered the cagewire front with a tarp to try to trap some heat, leaving a bit uncovered for the door. I have also put a heat lamp inside the coop. There are vent holes near the ceiling. I have never had a frostbite issue and have always had this coop. This makes me think that the insane weather shifts are to blame. What more can I do to compensate for such moist+freezing weather? Would hanging towels or something in the coop help absorb any moisture in the air? Any ideas will be greatly appreciated!