Silkies and showgirls also have rose comb, Fm, crest plus Na for naked neck for showgirls(most showgirls are Na na+). Color can be helpful, unless he is also black or white. (like if he is partridge, he can't throw "black downed chicks" with this hen but a BCM certainly can)
Check comb to see if it looks rose or walnut, any evidence of crest, dark skin (look at vent or under wing).. if it has none of that, then BCM prob a safe bet.
BCM are supposed to be gold birchin(I think- someone correct me if wrong).. use that for calculator, for now. s+s+ ER ER for a gold birchin rooster.
Check comb to see if it looks rose or walnut, any evidence of crest, dark skin (look at vent or under wing).. if it has none of that, then BCM prob a safe bet.
BCM are supposed to be gold birchin(I think- someone correct me if wrong).. use that for calculator, for now. s+s+ ER ER for a gold birchin rooster.