Well, after looking at this site, I have come to the conclusion that all my BR's are cockerels, unless they "sex" slightly different from the Dominiques as suggested they will sometimes do. I wonder what I would get if I crossed a BR roo with an RIR hen? BARRED REDS maybe?
http://www.dominiquechicken.com/Sexing_Dominique_chicks.html
http://www.dominiquechicken.com/Sexing_Dominique_chicks.html