I have 4, 1-week-old Buff Orpingtons and 1, 1-week-old White Leghorn. The BOs seem to always be together and the LH one is off on its own. Every once in a while they are all together and sometimes there is a BO with the LH. Is this because they tend to flock with birds of their own breed or is it because the LH was added to the group 2 days after they got home (I went back to the feed store for some bedding and this LH was the only chick left out of the shipment so I got it for free). I did change the brooder composition and bedding before I put them all together. Any ideas?