I have 13 ISA brown pullets and 2 straight run Buff Orpingtons together in a very large coop in our barn. They are all about 6/7 weeks old and I purchased them at TSC when they were around a week old. Two of the ISA's are becoming increasingly aggressive. They run/fly at me, try to pick fights with the others, jump on top of the food and water to keep others away, and almost have that rooster attitude. I know they are supposed to be sex links so are surely hens, but they are getting larger and pinker combs than the others and are getting wattles. Is there anything I can do to encourage them to not be as aggressive? I think one of the orpingtons could be a rooster, but these two even bully him.