Hmmmm.... I was wondering if I were to put a BR roo in with RIR, BO, and BR hens and hatched those eggs, if I could tell who's who when the pullets mature. I can't tell from your pic catdaddy, does the hen have yellow legs or white? Could it maybe be true that the BO crosses would have white legs and the RIR crosses would have yellow legs, or no? But then RAREROO said that some of the Xs can look like purebred BRs, so I don't know... A red barred bird sounds beautiful!
It IS so hard to get good pics of chickens. To save myself a lot of frustration, I automatically put my camera on the "blur reduction" setting, LOL. Chickens are always moving some part of their body...
ETA: Catdaddy, what kind of roo is that in your avatar? He's beautiful!