So... I have have two small flocks. My original flock (rooster + 2 hens) and my newer second flock (rooster + 6 hens), mostly BCMs. A week ago I picked up two Ameraucana hens both for the lovely blue eggs and to replace hens from the original flock who have passed away. The introduction with the original flock went okay, some pecking but no blood or anything too aggressive. The new girls seemed unhappy and mostly stayed in the coop, but I figured that was normal. It had only been a week. Today was the first day I left the run open and let them free range with the rest of their new flock-mates. Three hours later, I couldn't find them. It turns out they were both in the run of the second flock (there is a small- like 2 square feet- area at the top of the 6 ft. high run that is currently not covered with chicken wire. They hung out with the second flock all day, even squatting for the rooster and went into the coop with them without a problem this evening. So, I don't really have a question but I though it was a little weird and I was wondering if anyone else had this happen to them. They definitely had a preference. If it makes any difference, both the BCMs and the Ameraucana's came from the same local breeder, although they didn't "know" each other, as I got the BCMs as day-old chicks and the Ameraucana's as 1 year-old adults.