We have 2 RIR/Dominique cross hens that are 8 months old. In a few weeks we will be combining them with our younger flock of 13 (Easter Eggers, Silver Laced Wyandottes and Red Sex Links), once they are all on the same food. There are 5 Roos and 8 Pullets in the younger flock. They have been living in side by side runs since April. The runs actually share a wall/side. So my question is, what is the best way to combine them? By the way, we are going to take down a section of the shared side, combining the two runs into one, that can be sectioned off as needed.