read what I said earlier to another member (results will obviously be different)what do you get when you breed a white roo with a partridge hen?
it all depends on the color genes that white is hiding, since most white silkies are recesive white they could be hiding any color under that, for example I need my white rooster with my buff hen and got a pair of greys, aka silver partridge, (although the cockerel looks almost like a Columbian) all that means is that my rooster is at least silver based possibly silver partridge but since I got a really dark partridge from a black roo to the same hen it is more likely that the partridge genes came from the buff hen, possibly the Columbian genes too, in which case all the white roo did was change it from gold based to silver