Generally I am pretty good at research and understanding things. But I find the chicken genetics so confusing no matter how many times I read them. I looked through the threads and haven't been able to find my situation. It's always a cemani roo. But I have a cemani hen. I have one swedish flower roo and one Blue Americana roo (father could be either). Would this produce sex-linked chicks? I purposely hatched two out of my incubator. One came out marbled and is clearly a roo. The other came out all black and appears to be a hen. Now she has snuck off and hatched some of her own and it looks to be they are the same. Some marbled and some solid black.