My oldest hen, Henrietta (9 yrs), who is queen of the coop has started becoming very aggressive to another hen, Luna (barred rock) who is also higher up in the pecking order, but obviously not anywhere near the queen. Luna developed a limp (another issue, another post) and has slowed down immensely. Recently, Henrietta has been viciously attacking her, I'm assuming because she has noticed that Luna is less abled with her limp. Today the 6 girls had been free-ranging for several hours and I was in and out of the house. At one point, I noticed fresh blood drops on the ground outside. I followed them to Luna and then noticed her head was dripping with blood. I washed it with warm water and Dawn but it seems that Henrietta pulled out a good chunk from the top of Luna's head. I put pressure on it for a long time and the bleeding stopped. Then I put Blucote on. I brought Luna inside to keep her away from Henrietta, but she keeps scratching and opening up the wound again. She's also keeping her head turned in one direction. What else can I do and will she be OK????