Hi, my 1 1/2 year old white cochin hen, Molly's, chest has been looking bad for about a week. Yesterday, we noticed it looked worse than ever. she has huge patches of missing feathers just on her chest area (nowhere else) and it looks really red and almost raw , irritated and parts are a little bloody. Hard to see in this pic... looks a lot worse in person. This pic was taken yesterday....looks worse today. What the heck is going on?