If this cross produced wheatens the first cross... you BCM carry wheaten.... should not be breeding them as BCM. The wheaten is probably really a wheaten. The blacks from that cross carry wheaten too...... This kinda of cross causes lots of problems in marans. The crosses that are black are sold a Coppers and they are not they are crosses and should never be used in Coppers. I don't that much about Wheatens..... might be an ok cross for wheatens and might improve egg color but they have not place in Copper Breeding.