Hi. I have 3x 14 week old chicks. I have introduced 3 x 20-22 week old chicks today. I kept the separate but they could see each other. I allowed them to mix in my garden and it quickly became apparent that the older ones are asserting themselves. I appreciate there is a pecking order to sort but what should I expect to see during this. What should alarm me. I am concerned about them all being in the coop with no escape.