So, a few weeks back I had seen some black at the tips of my Brown Leghorn Roo's Comb. I kept an eye on it for two weeks with no change. Now its allot colder here and last night I came out to see the flock and my Roo had more black then before and now is also bleeding. I took the time to make a few quick changes to the coop, Like added plastic all the way around the run to brake the North winds and added 6" pine shavings to the floor plus I also added a heat lamp to help brake the Chill. What I need to know, Is there something I can do for him to heel up better/faster? Will the comb shed skin to make the black from frostbite go away? I feel treble for them and I thought that they would be ok in the coop cuz its rather well air tight but I open there door at 5am and I'm not home till after 10:30pm most nights so I only guess that they got it from being out during the day in the cold wind. Thanks!