Sorry, this is probably a VERY stupid question. I have seven Black Copper Marans eggs in my incubator. I am hoping for a roo and some hens. My friend has a BCM roo and says he's very friendly and gentle. My question is, can a roo be safely bred to his sisters? I have raised horses for years, and that's an absolute no-no unless you want serious genetic problems. But, are chickens different? I also have 12 assorted brown egg layers that are currently 3 weeks old, and I know the BCM roo will be fine for them. But I'd like to get some purebred BCM eggs and chicks....