7 weeks old and I'm thinking maybe a cochin roo? Comb is orange. He (?) was solid black as a hatchling.
Any thoughts as to what breed/gender? The other two are silkies.
He is not purebred cochin. Looks like he is a cochin mixed with a silkie. Possibly a project bird? He looks to have silkie feathering on his rear and dark skin. The single comb and "hard" feathering on the front would be a result of the cochin parentage.