I know that a black sex-link is a RIR (or similar) roo crossed with a BR hen. But, does the sex-link work the same way if the roo is a BR? I have a BR roo with our hens including JGs, mottled Javas, buckeyes, RIR, EEs, a white Leghorn, a Delaware, welsummers and BRs. I know that all chicks are barred when crossed with the BR (purebred) and delaware. Who knows with EEs and the white is questionable with the white Leghorn since I don't know if it is dominant or recessive. But, what about the JG, mottled Javas, buckeyes, RIRs and the welsummers? Will any of them be sex-linked?