I just came home to find tiny bugs--mites, I think?--all over the bottom of a broody hen and her eggs, as well as in the shavings in the nestbox. I disposed of the eggs and removed the hen, who seems healthy besides the mites all along her chest. I just found the mites this afternoon, but the eggs never looked particularly clean--did this cause the mites? Was this because of the mites? What should I do to take care of this hen? The nestbox? The coop?