I have figured out what all my chicks are, except these...I have two of each coloring. They are in one bin together at the feed store (TSC) and I think they came from Mt. Healthy. The guy said they are both the same breed and that he thought they were labeled sex links when they came. This chick does not have any white spotting on its head at all, it's solid black. So is the other chick I have of this kind, no white spot on it either, but the second chick has all yellow legs with no black coloring. And I have two of these: On the Mt. Healthy site they have something called Black Sex Link-Red Rock cross. I read that the males resembled Barred Rocks and the females are black and red. Could that be what these are? What do you think?