Dry flaky skin on 12 week old chickens

[zackhensley]

Hello all,
I got some chicks back at the end of august and everyone has been great. But recently I’ve noticed that my isa browns and some of barred rocks have what looks like dry flaky skin on their comb and around their face. It’s not severe but it’s definitely caught my attention. I could not find anything online about what it is. Is it some sort of infection, viral or bacterial? Or is it just dry skin? I live in Ohio and it a drier time of the year.
thanks for any help anyone can provide.

 

[nuthatched]

Does it seem to bug them?

 

[zackhensley]

Other than maybe the occasional scratch with their feet, no not really. Everyone is running around, and acting normal