Thank you Ron. I actually did order Elector PSP after researching mites. Ewwww. I think the mites must be the red variety as there aren't large build ups of them on the chickens. But the ones I do find crawling on me aren't red, perhaps they're newly hatched ones. I treated a poor Serama chick with some spray on Frontline and red mites came off of the poor thing like crazy. I ended up having to wash the poor thing with Dawn dish soap to get them all off and then blew it dry with a hair dryer. It was horrible.
I need to get some of that too. We have crows that hang out around our house & we have had a lot of problems with parasites. I would avoid the frontline though, as chickens are very sensitive to it and it can be toxic to them. Apparently chickens are more sensitive to fipronil than other animals are. Check out this website: