I feel so much better reading this thread. One of my two girls has not laid in two weeks. She has lost a feather here and there, and because I am moving them in a couple of days, I treated them for mites/lice last night, and dusted this coop, just to be on the safe side (I really don't want them to take blood suckers to a brand new coop). I didn't see anything on her,but this afternoon, noticed a lot of her feathers in the run. Great. Just in time to explode feathers in a new coop.
I was kind of worried, because her sister had a really dirty bum. She got cleaned up and soaked in elector psp also, but I couldn't examine her closely, because she is my wild child and was having none of it. If she had mites, I just have to hope the elector got them.
Now I feel like Peony is not laying, and is losing feathers because she is molting earlier than last year. *whew*!
Edit to add: I'm in SE Louisiana. It is still hot here.