The Mother of a BSL needs to be barred while the father can be practically any color but Barred or white.The two that look lol the one that was maybe said to be br are definitely smaller and have white feathers on their wings and white spot on top of head. Also the cockerels or what I think are have lonng tails compared to the smaller what I presume tttto be hens. What would the parents of black sex links be? I'm extremely new to chickens,having 5 adults now 6 two to three week olds and 15 incubating