Name that breed!

[junebuggena]

Dark Cornish pullet. The reds are also pullets. Not a trace of male specific feathering on any of them. Once over 4 months of age, it's normal for pullets to start turning red in the comb. It means they are hitting puberty and will be ready to lay in a few weeks.

 

[PatrickRoo]

All are pullets. The first one you posted is a Dark Cornish, Barnevelders have single combs. Yours looks to have a pea comb = Dark Cornish. Dark Cornish are easily sexable by their feather color/pattern. Yours is a pullet.

I can't even see the comb type on my device. Yes, it's a Dark Cornish.