Here is our main question: Will introducing a larger number of younger birds into an older flock make the integration easier or harder?Here is our situation: We have 9 girls that are 12 weeks old in a large coop and run. We have 15 girls that are 8 weeks old in a small coop and run that shares a wall with the bigger run. The little girls are about 1/2 the size as the bigger girls but their small coop is getting cramped. We still have one little girl that is getting her feathers in and has areas of bare skin still showing. The big girls are: Ameruacanas x2 Buff Orpington x1 Black Astroplorpes x2 Silver Laced Wyandottes x2 Gold Laced Wyandottes x2 The little girls are: Olive Eggers x2 Cream Legbars x2 Blue Copper Marans x2 Cuckoo Marans x2 Welsummers x2 Silver laced Cochin x2 Blue Cochin x1 Buff Orpingtons x2 Do we need to wait until they are the same size? I'm not sure the little coop will contain them much longer. The Green house w/ white trim is the bigger coop. There are (2) 6'x6' runs behind it. We have attached the smaller coop to one 6'x6' and the bigger girls have the other 6'x6'. Any insight would be greatly appreciated!