So, as the title says, I caught one of my girls limping today. We are currently combating a mite (I think) infestation, the coop has been cleaned out, sprayed inside, the ceiling, the walls and all around the perimeter, bedding dusted, chickens have all been dusted as well, of course - but after noticing my girl limping today, we examined her feet and noticed she still had mites. Now, all four of my girls have been acting completely normally - no pecking at themselves or each other, no missing feathers, they still have a healthy appetite and are drinking plenty of water, their poops look normal, they were wormed just a few weeks ago, the one that I caught limping doesn't seem to acknowledge her limp with any sounds of pain, nor does she peck or anything at her leg. The only sign is basically that she just doesn't stand on it as long as her other foot. She doesn't act lethargic, or lay down very much - she still moves around quite actively. I had them out to free-range today and she was all over the yard, as per usual. If I hadn't of seen the little critters for myself when I cleaned out their bedding, I would never have known they even had mites. We're doing our best to try and rid them, but I'm worried about my limping chicken (even if she isn't acting worried herself!) - is her limping possibly brought on by them? It's only one out of my four girls who is doing it. I have some pictures. This is her 'sore' foot: And this is her 'normal' foot: The only other background information I could offer is that we recently moved a small run into the main chicken coop to help one set of girls get used to the younger set of girls before we combine the 'flock'. The two older girls, including the one that's currently limping, have been seen perched on top of the smaller run and often jump up/down from it. What do other people think...?