Hi, I have a 4 yr hen among my flock (silkies) that has been losing feathers all over her body for the past year. At first thought it was just molting but now I doubt that is the problem. I dusted her with pyrethrum dust thinking it might be mite allergy but no changes. I keep the nest material (wood shavings) meticulously clean but I am worried that she may have something that the other hens could catch. Anyone have any advice. I will try to post an image of the poor little thing tomorrow.