That white rooster is interesting. Single comb, green legs, crest, and a beard. Wonder if it is like a three or four way mix. Usually the leghorns crosses are white with some black feathers, not sure if you would get that buff shading it has with a first generation leghorn X. But it does have a single comb and with your usual first EE or silkie X you'd not get that. And not sure you would call a silkie mix a potential super egg layer.