What I understood from the OP is that she is trying to breed Silver Bielefelder, I did not see a picture of his Silver Bielefelder stock, just the gold Bielefelder she has(she mentions that she will be using the gold Bielefelder stock to produce more silver), when I asked what is the Silver line she is using to produce Silver Bielefelder I did not get any specifics, the chicks on the pics posted are clearly silver duckwing, but I can't see the barring so going from the gathered info I would say that the chicks posted are 100% females and lack barring because the Silver duckwing male used also lacks barring and when crossed to gold Bielefelder a sex linked cross is produced:Silver duckwing females and golden crele cockerels(single barred).
I believe the OP should clarify his breeding strategies so we can comment on it based on that.
I believe the OP should clarify his breeding strategies so we can comment on it based on that.