My hen had some white diarrhea, so I brought her in for a warm cleansing bath and a bit of apple cider vinegar in her water to help that. While giving her the bath I noticed huge areas underneath where there are no longer any feathers and no signs of new quills coming! While air drying her I was able able to get a few pictures. Her head and neck have few feathers because she is the rooster‘s favorite. But I was shocked about the bare skin & lack of feathers underneath however and wonder what is going on and if I should take her in to see the vet. It is getting very cold here in NH and I worry about her. Stress? No sign of mites or pests in her bath water. She seems otherwise normal.