My tiny flock recently went from two to one hen,I've lost five over the years. That left me with one four year old Rhode Island Red who constantly looked for her BFF who had died. She was so lonely I decided to get her a couple new buddies to hang with. The girl I lost was a four year old Buff Orpington; I tried to find older hens but couldn't so yesterday, I bought two,six month old BOs. They are close to the size of my RIR. I waited until dark and put the new ones on the roost, my older hen immediately went into attack mode. Darn, I had hoped that would work. My older hen spent the night in a large crate in the coop with the new ones on the roost. Since I free range, my older hen spent the day in the yard and my new ones in the run. The older hen spent quite a lot of time checking out the newbies. My question is, am I going to have to separate the new chicks from the one hen, keeping them all in the run, as you would when introducing them to a larger flock? Or, will letting the one free range during the day and separating them at night accomplish the same goal? I know the flock the new ones came from, they are show chickens with a clean bill of health. They were last certified in August to show in a fair so I'm not concerned with bringing in sick chickens. Please help. Thanks