I have a 2-month old flock of 3BO, 3BR, 3LB, and 3PR. I can't get over the difference in their sizes! (All girls, except Rudy who is to be rehomed.) I get that there are differences from breed to breed, and the Light Brahmas are waaaay bigger than the others. But aren't the Buff Orpingtons big birds, too? Because my BOs are the smallest of the twelve at the moment. Are Orpingtons slower growers? Also, I am seeing marked differences WITHIN a breed. I have a Barred Rock that is noticeably smaller than the others. Is this normal individual variation, or should I be concerned that they're not getting enough to eat? I've done everything I can to assure everyone is fed (large feeder, two large treat bowls, distributing treats evenly) but who knows what goes on when the coop door is closed.... Your experience, as always, is much appreciated!