Well, I got rushed and did not get to think through the process of integrating these new birds in with my flock. Neither set is very old. I wanted a couple of chickens that would lay larger eggs and that would be easy to tell apart for raising chicks. A friend had extra BO pullets and I took two. I had them in a tractor for several days in the yard but they weren't really close to each other. They could see each other. Anyway my DH is leaving to go out of town tomorrow and I wanted to get them in. We tried this morning to put one in and it was crazy. Fortunately she ran up the ramp to the coop and my husband closed her up in there. We put the other one in there also and left them closed up all day with food and water. The original chickens stayed out and complained most of the day. Anyway, at night, we let the BH's in and they fluffed around and got settled on their roost and pretty much ignored the new chickens. So now we hope that they will all just come out as friends tomorrow morning. We may be able to catch them and put them in a dog crate in the pen to get them used to each other tomorrow if necessary. That could involve a lot of running and screaming and I don't know if it will be worth it. Just we just let them work it out in the morning?