Okay, thanks. I know she's not out of your birds (those combs are a dead give away between your gold duckwings and my pheonix gold duckwings) her grandma had dominant white and her grandpa had recessive though so I've found myself in a pickle.I don't have any recessive white in any of my birds.
Possible dominate white in some buffs maybe. But that would be only option and you didn't get any eggs from them.
Between a blue silver duckwing and a normal silver duckwing, is there one you'd use over the other for the test breeding?