I have three 3 yr old hens and three pullets. Something happened during a recent snow storm where they all had to bunk together (finally!) They were fine, until today. Yesterday we had heavy rain that washed 2 ft of snow away. Today was 50 degrees, sunny and beautiful, so I let the chooks out. I hear squabbling and ran out thinking there was an attack from above. One of my pullets started brutally attacking an older hen that NEVER showed any aggression towards anyone! The pullet - Tallulah, was pulling feathers and jumping on her and picking on her comb until it bled. The older hen - Pearl, is the sweetest hen and the second in command with her buddy Ruby, my other original hen. What happened? Four of my hens were bunking together until the snow came and shut off the smaller coop that's attached. For 4 days all six roosted with no problems. I had to interfere with the fights, because Pearl was feeling a little poorly lately and I'm not sure why, but I had my eye on her. Could this be it? Do they foresee a problem with this older hen and are trying to reorganize? She was so put out that she hid in a corner of the yard until dusk, and I had to go out and make sure she went to the coop. And when she did her older buddies made sure she got in and roosted at the top with her. Thank goodness. The three younger ones managed on the lower roost. I'm hoping this is a good thing. What the heck happened? Are they reorganizing? Is the younger hen feeling her superiority and going for the #2 slot? I felt so bad for Pearl, I spent the afternoon being the referee and stopped a couple of brutal fights, should I have? The other hens were sort of waiting to see what would happen. And when I stopped some of the fights, I know Pearl looked grateful. I'm sure they know what they're doing in their hierarchy of chickendom, and if I hadn't noticed maybe it would have been OK ?? But I did notice and I interfered for the sake of Pearl. Any thoughts?