Hi! I'm a newbie to the forum and chickens. I have 6 sexlinks. 3 black and 3 red. Went out yesterday and all 6 have black spots on their combs. Some on the tips and some on the middle portions. Their feet look fabulous..... don't seem to be pecking each other. The black spots are raised and don't seem to bother them. They are all eating and drinking fine. All laying still. It is very cold here 30's day and 20's night. They are in a non heated coop but no drafts. They have heat light in the coop but tend to want to spend the whole day outside even on bitter cold days. How can I tell if they have pox or could have gotten frostbite? There have been a few days that dropped down to 10 but yesterday was not one of them. Any ideas on what I can do naturally to help them through this? I'm working on posting a picture but don't know how yet. I downloaded it but when I try to submit it, it doesn't go through. Thank you!!