Barg, to tell you the truth, what I would do with your birds (seeing you have alot less than me) is to seperate the two groups again for like a week. Then introduce ONE of the larger ladies in with Esther and Winnie. Not the other way around. let that be it for a few days to a week. Then introduce another large girl to the group. wait another few days.The idea is that Esther and Winnie will already have a pecking order amongst themselves, and the larger ones will be the newcomers therefore will have to start at the bottom for a change. I have had this work well with the bachelor pen when I had one and only had one or two birds to introduce to the group. It is far better to introduce several birds to a older established group but, we all cannot do that. My group is just to large for this plan to work for me.