I have three hens and one of them gets bullied by the other two. I keep the bullies together in a coop and the other hen in a separate enclosure. One of the bullies viciously attacks on sight when I let them all out into the yard and the other bully lightly picks at the comb of the bullied hen when eating near each other. This problem has been going on for about 2 months now. I've posted about this before and people said to put the bullies in jail but that hasn't seem to turn down the aggression. All of the hens are good layers and a little over 3 years old. I suppose I could give the bullied hen away to someone. If I do want to put down the bullied hen myself, would a killing cone or cervical dislocation be better? I don't have an axe so I cannot behead anything.