Does anybody have Barred Plymouth Rock hens & if so are yours aggressive? I've got 2 young ones that have not laid yet, they're getting close to age & they seem to be the bossiest hens ever, pecking & chasing the other hens & now they have killed one of my young guineas. Is this "normal" behavior for this breed? I have never had them before. I got them because they're supposed to be good layers, but if they don't settle down I'm going to have to get rid of them. Any ideas on how I can break them of being so mean?