definitely did not see anything last night and I looked every where. They seem to only be preening at the door ... ughhh so confused.Quailtrail, I think there are two kinds of chicken mites. One kind comes out and dines at night, but I don't know if they stay on the bird all the time (northern red fowl mite?). The kind I had was the other kind. You need good light (at least I do) to see them, but they are definitely visible to the naked eye, like little specks of sand moving around. Chickens do preen a lot, but mine started scratching and preening more hyperactively when they had them.
Chicken saddles work pretty well. I had a hen that needed one. She got a little freaked out when we put it on. In fact, it was quite comical. Not only was the rooster petrified when he saw it, but so were all the hens, including the one wearing it on her own back. Eventually things settled down, but sometimes the saddle would get flipped up and I'd have to sneak up on her and readjust it. Eventually the snaps wore out. I have seen a pattern online that was all one piece stretchy fleece, no snaps involved.