I have two issues open for suggestions! I have two small flocks in separate tractors I would like to combine, basically adding new hens to a pen with a roo & a few hens. The roo and the hens are very mild mannered, and have accepted a hen before, however that pen is also home to two guineas. I don't have means to house the two guineas individually, but they've suddenly taken to picking on one of the hens kept in the same tractor, and attacking every other chicken they can get near when free ranging (except their favorite roo & two hens). For a temporary solution (very temporary) I turned them out to free range. I hated to do that, but it is free range them or watch them kill a chicken. I have a male & a female, it seems to be mostly the male that is the aggressor. If I keep the guineas separately, what is the best way to integrate a few (4) hens into the tractor with the roo & three hens? Allow them to be side by side for a few days, mingle them & watch & hope? Are there any suggestions for what I might be able to do to stop the guinea rampage? I don't know why they 'turned', they've been with the same flock for months and never showed any such behavior before, but there haven't been any changes and suddenly they turned mean.