I am pretty new to chickens. I had been given some hens and an Americauna rooster last summer, but due to dog incident only had one barred rock hen and the roo in fall. I have raised 15 buckeyes and they have been out with the two older ones since Christmas with no problems. The Buckeyes are now about 15 weeks old and the big roo is starting some mating behavior I was told: biting the young hens in the neck to subdue them. I read somewhere that a big roo can break bones and otherwise really hurt the pullets by mounting them. Should I separate the big roo? We are thinking of giving him away anyway now that the Buckeye roos are getting older. Are the pullets in danger if I leave them together?