Oh my that looks strange. Almost looks like he or another bird stripped them. Have you checked him real good for mites? The only thing that comes to mind is deplumbing mites.
Sorry you've been left hanging so to speak. Seems like there's been an influx of emergencies the last few days. Let's tag a few people to try and get some opinions. @azygous@casportpony@Wyorp Rock
I've seen this in my flock. But I associated it with wear and tear and molting time getting near. If he flaps his wings in a confined spot, he could be wearing the tips down. For example, roosters love to crow upon entering or exiting the coop. The narrow opening would create wear on his feathers.
I've considered depluming mites, but the problem was isolated to one or two chickens so I discounted it.
That makes sense hes always running after the hens in tight spaces inside the coop
It figures he would sacrifice his wingtips for the love of a women
Thanks to all for such a thorough answer