We have 8 hens that are now 20 weeks old. We got our first egg 2 days ago (not sure if that's relevant). I have no idea who laid the egg. Starting on the day that we got our first egg, every time we go in the run one of our RIR's charges at us. Is this some sort of way of protecting the eggs? She has never done this before and we have had them since there were 2 days old. I am assuming if she was really a he we would know by now as we knew or BO was a he a long time ago (he has since moved to a new home). Any ideas on why she would suddenly be aggressive towards us??