well it depends on if the 2 Duckwings are built on the same allele. Probably either eWh ( Wheaten) or e+ ( wildtype). A Golden Duckwing is a Silver Duckwing carrying one gold gene. A Silver Duckwing is a Duckwing that is Silver and carries no Gold gene. Hopefully, there are not other color modifiers or recessive genes hiding in the birds. Like Autosomal red. It can hide in Silver Duckwings making the shoulder patch just a bit darker then usual. A Silver Duckwing which had autosomal red is really a Red Shouldered Silver Duckwing. Now a Golden Duckwing will have a slight cream tint to it's white hackle. If you breed a Red Shouldered Silver Duckwing to a Golden Duckwing, the autosomal red will cause the cream in the hackle to become darker, spoiling that pretty look by making the hackle look "dirty".
More than welcome. Due to improperly colored foundation stock, innocently purchased, I had Golden Duckwing invade a breeding program where I was trying to breed Black Breasted Red Marans ( BB Red) . Sigh. Then I unknowingly added in autosomal red and ended up with Red Shouldered Silver Duckwings. What a mess, the autosomal red polluted everything. It is very difficult to find in the chick down and juvenile feathering. Unless you become a serous student of proper chick down. I was so surprised at how just the slightest different in a tint in chick down in these color could manifest such differences in the adult coloring. Autosomal red is a real "sticky" color factor. Tough to get rid of once it invades a breeding program. I still see a notable number of people on the Net touting the lovely pics of their Silver Duckwings when it is obvious from the darker red patch on the shoulder that they really have Red Shouldered Silver Duckwings and are polluted with autosomal red.
