Looks like a pullet from what I can see in the pic. The barring is too dark for a Roo. Roos have wider white bars, while pullets usually have the wider dark gray bars. If you look at BR hens and roosters from a distance, the hens will look quite darker than the roosters.I don't know much about the red birds but the dominques all appear to be male. They do develop combs and wattles pretty early in both sexes but the barring and body shape are different. This is a pullet roughly the same age.View attachment 1516130