I live in middle Tn. Lately it has been raining during the day and then dropping below freezing at night. It is ridiculous how it can feel warm enough to not even need a jacket during the day, and after dark it becomes a winter wonderland. I have never had an issue with frostbite before. My birds take to the winters here pretty well, especially since we hardly ever get any snow. However, I think the rain/freeze situation the last week or so has caused one of my Roos to start getting frostbite on the tips of his comb. I have 2 Orpington roosters who have beautiful tall combs, but this is great for frostbite. So far only one roo has the slightest blackening on the very tips of 2-3 of his points. I am very worried about this getting worse, especially with the moist weather. What can I do to help him out and also prevent it from happening to the other roo? Does Vaseline actually help? I also have some girls with prominent combs, so I may need to think about protecting them as well. Their coop is up to par for wintertime. Like I said, this has never happened before, so I really think it is the weather. Any advice appreciated!