I have a 3yo Dominique that molted last fall (September or so) and then never regrew any feathers. This is the first time she has done that. She's on a standard laying pellet and all her coop mates have molted and regrown all their feathers. I don't keep roosters and everyone is good friends, so it's not that she's getting her feathers picked. She looks terrible, which is sad, because she was a beautiful chicken. I'm sure she's not very comfortable, either. Any thoughts? There are no signs of parasites. Everyone else is very healthy with lovely shiny feathers.