I have 4 older hens and 4 four month and 5 month old hens. They all roam the yard together every day but its like they are together but separate. The babies are 2 and 2 and the 4 older ones hang together. Its like 3 different sets of chickens. I want them to all go into the same coop. How can I do this? Should I take away the babies house they are in or will they in my themselves cause they are out growing the little house.