Dark one looks to be a Black sex-link (AKA Black Star), and I'd say probably a Red sex-link for the other. RSL's can go by various names depending on the variety (Cinnamon Queen, Golden Comet, ISA Brown etc.) Some are a little different than others, but all a form of a production hybrid. These both look to be pullets. Definitely so if they're sex-links. The term "sex-link" refers to the fact that males and females are different colors, that is the colors are linked according to sex.