Hi, I am very new to all this and I hope I am right here for asking my question. We will be getting two 6-7 months old bantam leghorns this week. I would also love to add a 9 week old barrel rock to my coop and was wondering, if this would be okay? All of the girls will be new in this coop (never had chickens before) so I was thinking there shouldn't be any problem really about them picking on each other. But I wanna make sure. Thanks for any replies.