I was sitting in the coop watching my chickens and my rooster was doing his little dance for a hen when I noticed his butt looked red. I caught him and quickly saw that his skin looked red and irritate all around his vent, I also saw some kind of white build up around some of the smaller feathers around his butt. After watching for a bit I saw tiney bugs. They looked almost looked like fleas but whiteish orangish?? I've never heard of a bug like this but I'm very concerned... I checked him more and he didn't have them anywhere else and wasn't red anywhere else, just his bum. Does anyone know what this is or what I need to do to get rid of it. He's the roo of all my chickens too so I'm worried they might all have or get it even though I didn't see it on anyone else.