I have a rescue hen. It was one of 3 that I rescued several years ago. That others have passed on with one remaining. With unseasonably warm weather where we live she molted late this year and is still showing signs of molt with some pin feathers around the neck and some feather sheath dust. Its finally dropped in temp here and to a really bitter low single digits so I brought her in to be more comfortable while the cold snap is happening. She got a spa bath today and when I was blowdrying her I noticed her tail feathers are some what ragged and they had these distinct horizontal lines in them? is this a sign of something in particular?