Now if the question was specifically do our chickens have red mite then I would have to say that I don't know if they have red mite, but I suspect they have mites of some kind. Since our 16 chickens free range over three acres I would assume that they do have mites that they would have picked up from wild animals that pass through the property.
The hens like to dust bathe in this spot so I added some wood ash to aid in their natural solution to controlling mites and others pests. Since my chickens are exposed to all kinds of pests everyday there is no way I'm going to be able to keep a mite and lice free environment. (I would have to keep them in cages) I figure that the chickens are going to have some pests and as long as they are healthy they will be able to maintain a balance and tolerance and stay healthy.
I have put food grade (DE) Diatomaceous Earth - here in dusting areas, the coop, roosts, and nest boxes a few times and should probably do it more often. (And be sure to wear a mask!)
Old jeans are the best. The material is so soft and comfortable. Trouble is that by the time the jeans are that great to wear the fabric is wearing thin. I love these jeans and kept them for outside work and painting, but they are wearing very thin, falling apart and won't last much longer.
I did sew up a side seam and tried sewing the large rips , but my sewing machine decided it didn't want to sew through the patches and the thread kept breaking. So, my solution was to haul out the duct tape. At least I will still be able to wear the jeans when I paint.
I love duct tape... it makes the best chicken saddles and comes to the rescue many times.