One of my tame guineas is becoming aggressive towards my chickens (in the coop). Should i release it

[Kalimani]

3 guineas, hand reared, share the quite big coop with 4 chickens. They are now about six months old. They were getting along ok, apart from one grumpy hen picking on them now and then. I have been away for the last 3 months, but the person looking after them reports that one guinea is now terrorizing them.
I am assuming this is a male based on this behaviour, but don't know for sure.
His/her wild parents and sibling get fed right outside the coop, so they are sort of familiar to each other.

Should I let him out of the coop? Will the wild ones accept or attack him? I will only be back there in 3 months' time, so need to advise their caretaker.

Any suggestions will be much appreciated. I absolutely adore those birds and can't wait to see them again, but do not want the girls to be hurt in any way due to my own selfishness.

Thank you!

P.s. Just heard, aggressive during feeding time with smaller chickens. I suggested setting up two feeding stations (treat feeding, they have access to normal food at all times)

 

[sourland]

Have the caretaker keep an eye on things. Such behavior some escalates to a high level even causing injury and death. The chickens in an enclosed area are at a disadvantage. On the other hand the guinea released outside will have to try to make his place in the established flock.