I am going to stop down where I got the eggs today. Hopefully they are home and I can double check as to what they have for birds. Would he have those markings if the father was a roo and the hen was a SLW?
Well I have an update.
My columbian colored chick is in fact a cockerel! When I was outside searching for my missing WL he stood up on a pile of rocks and made the best little crow he could come up with. I blinked my eyes and he did it again! I always knew he acted different then the other chicks in his own little cockerel way.