Ah .....That bird was silver with mahogany, I think. So your bird will most probably have inherited at least one of each of those genes. One would probably expect the black to have been gold by default, so he could be split silver/gold, you ought to be better able to tell that as he matures. If his mother carried silver then he'd be 'pure' for silver. I can't tell which genes his mother had at the e-locus. I'd guess that she might have been split E/? herself? If she had been an eb black I'd have expected her to have white, yellow legs, grey or willow legs. BTW what colour are his legs?