I have one rooster, 8 hens, and 2 male guineas. Yesterday I caught them all ganged up on one hen and pecking her severely. It seemed as if they were trying to kill her. She's in the hospital crate and I think she will be OK. She is the low chicken in the pecking order, but it makes no sense for them to try to kill her. If I put her back with the flock when she's healed, do you think this will just happen again?