We got six chicks when they were about three weeks old and at the same time got two that were only a few days old and were much smaller. We kept the six separate from the two tiny ones so they wouldn't get stomped on. Now the two little ones are feathered out and we put them all together. One of them is a bit bigger than the little one and she seems to have been accepted, but there is one of the bigger ones that keeps picking on the littler one. I felt sorry for her, so put her back in the other enclosure, but now she's alone and peeping like mad. So, I don't know whether I should put the little one back in so the others can get used to her, but risk her being picked on a little- or leave her where she is for another couple weeks til she gets older. Any thoughts?