I live in a city so I have 4 girls. 2 speckled wyandottes and 2 solid ones. Initially they seemed to pair up that way - the speckled ones together but nothing mean going on. They were about 1 year old and I was thinking to myself that it wasn't that obvioius who the leader was which was very nice. Now it has changed dramatically. It is 3 girls against 1 and it's pretty bad. I thought perhaps she may be ill but it's been going on now for over a month. There is a downspout in their coop and this is the only place she is allowed to spend her time. As soon as she gets down all 3 will go after her. She is petrified. So when I get home from work I go out into their run and she comes down immediately. Then I will open the people door to their coop and she runs in and eats like no tomorrow. I monitor them over the weekend and isolate the mean ones at times in a cat carrier but that doesn't seem to work. The one who is being picked on has always been the friendliest chicken. Any ideas. We put a separate water container near the downspout for her.