Sometimes and sometimes not. It depends on the temperament of the roosters. I had a bachelor pen at one point and some got a long while others did not. I ended up having too many issues so I sold off all the cockerels and now am down to one. I am going to try and keep another cockerel in with my hens and see how it goes. The worst thing that can happen is it doesn't work out and I'll have to rehome.Can two silkie roos live together if they were brought up together?