I have two banty hens missing feathers. I treated them for mites as suggested on this website, but they still look terrible. Can't I expect the feathers to grow back? I actually treated them for mites several months ago and really never saw an improvement. How long and how often should I treat them? I bathed them in warm mild soapy water, then kept them in a large clean dog kennel, but of course released them back to the run the next day. I also cleaned the coop and dust in occasionally with DE. Should I be doing more? To add to the dilemma, none of my other chickens are showing these symptoms. But they are able to fly better and sleep up high on the roosts, rather than on the very low roost my husband built for these little gals. I read on another post about pulling dead or damaged feathers. That was in relation to showing chickens, but I don't really have to do that do I? That just seems to add insult to injury. They already don't trust me after I bathed them. Let me know if you have any suggestions. Thank you.