What would resulting chicks look like? My polish pen has a silver laced roo, 2 silver laced hens, a WC black roo, and a WC Blue hen. The silver laced roo is the one I see mating hens, he won't let the WC black roo close to them. I threw some of their eggs in my incubator as extras to fill it. Just wondering what I may come out with? Also, I'm moving the WC black and WC Blue to their own pen. Is it 3 weeks before her eggs are for sure fertilized by him?