These are pretty old bloodlines, nothing new. Some of the hens are just as game and aggressive toward other hens as the roosters are against other roosters. When we try to turn them out they will ball up and fight to the point of exhaustion and death if we don’t intervene. They will also fight through the wire of a hen in a pen, causing both to beat their feet and prop toes up. They will near kill each other if we try to pen two of them together if we don’t intervene. It is inconvenient. They are Radio Kelsos and Albany Kelsos mainly. Two very old bloodlines. We can turn our Deadend Grey hens out to free range no problem.