If they're approaching point of lay they're probably at their most "difficult" right now, due to hormones. So the good news is once the older ones start laying, they may calm down a bit as far as pecking order scuffles and food guarding.They still get pecked and bit and chased, but there's been no blood drawn. I'm considering adding more feeders. I've a flock of 7 and only 4 feeders and the bigs are even pecking and biting each other in the morning right now. I think food pressure might have something to do with it. Or the bigs are working out their pecking order as they get close to point of lay. I can definitely tell who the bottom chicken is now, but I'm still not sure who the matriarch is.