I would expect the barred rock x Barnie cross pullets to be black, if the barred birds are based on E/E the crosses will be E/eb. That's what my E/eb birds (from a Barnie on blue/black Rock hen) looked like (all black) and the pullets from this cross are essentially the same genotype as mine. When I put black copper marans roosters on barred rock hens to make sex links there was some brown in the hackle of the sexlink pullets, but the marans is based on Er so I assumed that was the reason for the coppery hackles.
I am now getting some F2 chicks from my blue rock and barnie backcrosses, there are black chicks that are E/eb but that are also Pg/Pg that have faint patterns showing through the black. I have also got my first blue laced chicks starting to feather out, so I am excited to see how they will develop.
I will be putting my blue F1 roosters (carrying Silver) in with my Barnie hens in a week or so.
Andy
I am now getting some F2 chicks from my blue rock and barnie backcrosses, there are black chicks that are E/eb but that are also Pg/Pg that have faint patterns showing through the black. I have also got my first blue laced chicks starting to feather out, so I am excited to see how they will develop.
I will be putting my blue F1 roosters (carrying Silver) in with my Barnie hens in a week or so.
Andy