I have a year-old rooster that (I think) is a Rhode Island Red and Plymouth Rock cross. Recently I noticed the skin of his comb has been flaking. I live in Reno so the air is pretty dry, but I wanted to ask if that's anything I should worry about. He isn't for show or anything, I got him by chance from mixed chicks so he's my first. This is the best picture he'd let me get of him.