Please help. I am newer to having my 9 girls and I can't find a vet that deals with chickens. I have a couple hens with problems (I think) and don't know if normal or not. My girls have been losing a lot of feathers. From light loss from back of neck, chest and top of shoulders all the way to full smooth skin from top of butt to belly. Is that normal right now? I have treated the coop and pen area 2 times now (with a lot of mite dust-enough for 200 chickens) and with Lyme all around the pen). They have 3 areas for dust baths too and take them. Still loosing a lot of feathers. I have also increased their protein intake (w/kitty food). They do pick at times at each other but not a lot. One week fine, fat, full feathers then all of a sudden tons of feathers gone, timid, look sick? Please HELP as I don't know what else to do. I don't know if they are sick or not?