Now I get it.No, Black stars are a hybrid sex-linked and do not breed true. While Rhodebars are a hybrid they do breed true therefore are an actual breed.
Black Stars are a one time shot, while years of breeding goes into making a Rhodebar. Some of the same ingredients but a lot more selective breeding.

He is a beautiful rooster, but definitely not a Rhodebar.
Is it possible for him to be a RIR and Black Star cross? Since Stars don't breed true, maybe he could be a cross between them?