My husband and I are new to the chicken world. We have 12 chickens we got 7 weeks ago. I have noticed, I think one of my hens (suppose to be) has missing feathers all over parts of her body. I noticed one of the feathers broke off so close to the skin this morning it was bleeding. Her skin is very ashy looking too. Reminds me of a bad case of dandruff. I am not sure if that is from loosing feathers and trying to grow new ones back. I just need some answers as to what could be going on and how to treat her. I have separated her from the rest as of this morning. HELP!!