I have 4, 4 week old Black Australorps. 2 a very clearly cockerels, 1 is a hen, and 1 is a wait and see but I'm pretty sure it's another cockerel *sigh*. My question is the one cockerel has gotten way bigger than everyone else in the last week and he is getting really aggressive to the other chicks. Would it be ok if I put him by himself, or any other tips? I have someone that wants the extra roosters but not until their a little bigger. I have them with my two Lavender Orpington Pullets who are a few weeks older. I'm going to move them to a separate cage inside the coop/run with my big girls this weekend, will that help maybe?