Hi there! I have a small flock of three chickens that have been together for about four years. A friend of mine just gave me her six-year-old Chicken that she can no longer keep. They do OK by staying away from one another during the day, but they will simply not let her on the roost at night and are vicious. I have placed a cardboard divider up and put her on that one side And it has worked but obviously I cannot do this forever. Should I get a separate small Coop for her to roost in at night? Or should I use the bully blaster? Also, I was thinking of adding another chicken but don’t want to double my problems. Any advice is great. I read Penny’s plight and it did help.