Hi everyone, I could use a little advice. I am in Maine and the weather has been pretty cold recently. My ducks and chickens are in a indoor coop, it's part of our garage. The chicken coop has two heat lamps in it right now that are always on. I noticed the other day that two of my chickens (Buff Orpington and Black Giant) had a little bit of black starting on their combs. The Buff actually has some white looking tips and black. Any advice? Should I be doing anything to help or treat it? I have heard some people say its okay and the tips will eventually fall off and come back, others say to use Vaseline on the combs. I check on them twice a day and they are eating and laying regularly and full of their personalities still. Just don't want to see them get worse! Thanks in advance.