For one, the red wattle kind of gives it away lol but at hatch I had 3 with brown on their backs and 1 that was all blue and slightly smaller. They are a golden campine/splash Andalusian (roo) cross. I wondered if the would be sexable at birth since they had the brown and I don't know if it coincidence bit those 3 brown back chicks are now sporting big combs lol. But so stinking cute!