I bought these red star(?) as 3 day old chicks. One is much much larger than the other. It is the dominate bird. Is it a red star? They were both a tan/brown color( that should be a female when they were bought. even as a baby he was larger, holds itself taller, and now the comb is much better. What do you think? Is it a red star or just a RIR? Is it a cockerel?