One of my hens (a red sex link) has almost no tail feathers left and the soft downy feathers near her vent are almost all gone. My SLW is plucking them right off her - I've seen her do it! I am not able to separate the girls and am trying to come up with a way to make the RSL's feathers less appealing. I wonder if all the bright red skin is now like a massive target to the SLW. I tried to find gentian violet which would stain the skin blue, but can't find any. Iodine didn't really change the color much. Am I on the right track, or should I try something other than trying to "get the red out"? I'm worried that with winter coming the naked skin will be suseptible to frost bite. Any help is much appreciated.