I do too. They are nasty animals that are too smart for their own good. There was a barn I used to ride at and there were several coons that made their home around the Barn. There were several times they chased me and my sister out of the barn. This was before I knew how to handle a gun (plus it was someone else's property and he didn't want to deal with the coons. We binned up the cat food and grain, but then the coons turned on the barn cats and killed them.
I trim dirty butt feathers. I have one hen who gets really bad because her butt protrudes very far back. If you have a lot of birds with dirty butts, I would get them tested for intestinal parasites.
@KikisGirls is a good person to talk to about that. I think it depends on the worms.
Remind me how many birds you have.
I'd use castile soap and a sponge. But I would have a clean bucket to move them to for a rinse. Hosing them off doesn't work too well unless you feel comfortable taking them into the house.
