What breed are my ducklings?

[AchromicSkies]

Just bought these guys at an auction and they were listed as Rouen ducks. Looking online though they don't really look like the ducklings of that breed. Still fairly new to ducks so wondering what others think.

 

[KathiQuacks]

Definitely not Rouens. They remind me of Silver Appleyards, but I’d say more likely they’re mixed.