I have two flying oriental roller hen birds, one is red and the other is black. What colored cocks should I pair each up with to get the best colors out of them? At first I was gonna pair up the two because I knew the red one was a hen bird for sure while the black one would act like a cock bird and was relatively heavier... But once I put the two in next to my proven utility king cock, they both reacted like hens and were desperate to be mated with. So when I put the two FORs in together, they just squabble over the nest. So long story short, any input or advice is welcome!