I have been extensively reading posts on hen fighting and would dearly love some input on my specific issue. - bought a property that already had a coop, run, and 7 laying hens. No issues there. - decided to adopt 6 more hens and a roo from someone selling their farm (divorce) - quarantined new flock for a month - semi-altered coop to accommodate new ones - introduced them at night - checked the next morning and all good - checked mid-day and it looked like a scene from Psycho. Blood smears and spatter everywhere. - one main victim, so I patched her up and stopped the bleeding. Naively brought her back the next day. Attacked, but not sure by who - discovered the aggressor and removed her as well - they are in side-by-side pens in my dog kennel where they can see each other, but no physical access is possible - after a week, opened both their gates and sprinkled corn in both pens and some in a common area. Stood back to watch - aggressor almost immediately pecked the victim at the back of the neck - victim lowered to the ground in submissive pose but aggressor proceeded to beat the hell out of her - separated them again and here is where I am at now. What to do next?