I got 17 three-week old chicks two weeks ago. After a few days one was pecking bottoms to the point of bloodiness. I separated her and put her with another larger hen in a cage in the same room as the others. Today I moved them all outside to the coop (a sectioned off section of my regular hen coop). There is tons of room, food, water and a red heat lamp. I put meanie in with everyone else and all was quiet for about an hour. I went back out to check them and sure enough she had bloodied three more chicks, wings this time. One is quite beat up. I seperated her again, and this time put the cage in with the adults, who are about two-years old. They have some curiosity but not aggression. I don't know what to do with this vicious meanie. When she is not with the others she is fine and they are excellent. As soon as I put her back in she goes way past pecking order picking and goes for blood. She is a gorgeous black sex link, fully feathered and very affectionate to me. But, not so with the other hens (and one little roo). Any suggestions would be appreciated. I don't want to cull her and don't know of anyone local who would want a meanie. Thanks.