"Golden Duckwing . . .Six Breeds have golden duckwing as a variety. It is not commonly seen except in Modern Game and Old English Game.  Male hackle and saddle are free of black striping and this feature differentiates it from the golden variety. I have seen it written in several places that the females of the silver duckwing and golden duckwing are the same genetically. A close reading of their descriptions in Bantam Standard will show this is not so. It is true that both are pure for silver (S_) but the silver duckwing does not carry autosomal  red which is characteristic of the golden duckwing." Quoted from Bantam Chickens by Fred P. Jeffrey.

"In instances where there is one dose of IAph, but no mahogany, we see the phenotype in the male that is called "golden"/"golden duckwing", as in the standard description of the Modern Game variety. The standard description calls for this phenotype of male, but the female called for in that standard form is the non-mahogany form described above in the previous section. The male of this type has a yellow/cream hackle, saddle and wing triangle while the shoulder is a darker yellow-gold to pale orange-yellow. Ironically, it is the female of this type, a heterozygote, that is the standard ‘silver"/"silver duckwing" hen. She has a gray back with a slight cream tint (silver pheomelanin with black/eumelanic stippling of any size appears visually gray and layered over a small amount of Aph, there is a creamy effect), the hackle pheomelanin is white/near white and the breast is salmon, generally with a paler lace of cream pheomelanin at the edge of the breast feathers." Quoted from Brian Reeder's: The Genetic Factors of Silver Phenotypes, Exhibition Poultry Magazine, Issue 2.12,December 2011.