I have a 18 week old black sex link hen who was a rescue and the sole hen for about a month. I have 3 chicks who I am slowly introducing, and added a 16 week old Rhode Island Red hen about a week ago. The two older hens were getting along fine because it was clear that the BSL was boss. Neither of the girls has started laying yet. Over the last couple of days, I've been putting the chicks in the run during the day while the bigger girls are out free-ranging in the yard. Before the girls go in for the night, the chicks are moved to a separate pen in the coop. This way the girls are getting used to the presence of the chicks while not being able to harrass them. I've noticed that the BSL has been especially bossy with the RIR. Not agressive, just bossy. She'll chase her away from an area, but then leave her alone. I was thinking I'd keep the chicks out of the mix until the two hens work things out. Thoughts?