My husband and I are two weeks new to the world of chickens. We live in a city that allows up to 4 hens. So far we are really enjoying our little ones. We got 2 Buff Orps and 2 Australorps because everything we read said they were docile breeds. They were fine for the first week but then one of the Aussies became very aggressive, especially to the Orps. Constantly pecking at eyes and vents to the point that they bleed. We separated the breeds with a screen. Any suggestions on what's going on? Are we in for trouble when they move to the coop? Thanks for any suggestions!