Hi Background info: I have two hens, one is a large White Sussex previously always a solid wee girl. A few months ago I added an ex battery hen from a friend. This wee bird was quite happy at start, then started rapidly loosing weight, wormed all of them, and then discovered she was infested with brown mites. Tried to treat her with mite treatment special food etc, but she died . Treated my two hens for mites and trimmed affected feathers etc. Both my hens are now moulting and have been for past month. My problem is that my white sussex who has always been super healthy still has mites around vent and a few in feathers, have done another treatment of hens and coop. BUT I am REALLY worried now because she has lost a LOT of weight. I can clearly feel her breast bone and put my fingers either side of it (it's awful and feels like a carcus) Is it the mites??? She is happy enough, about 3.5 years old, eats well, but the weight is freaking me out!! Should I worm her again? Really don't want to see the slow decline over a number of weeks like the other wee hen. :-( she was just a little skeleton and light as a feather when she died, I couldn't get any weight back on. She is a much loved pet. Advice please!!!