Edited by newchick39 - 4/21/16 at 5:22pm
Oops, I missed that last chick - can you provide a clearer shot of the comb? It may be a buttercup, and as junebuggena says quite possibly a cockerel. Post pictures again in two or three weeks.
That comb confirms it's a Buttercup. But that coloring is all cockerel. Females are a lighter gold color.
MyPetChicken has a good comparison photo of a rooster and hen. That rich red is a male only thing.