Beautiful, Rose!!! I talked to the seller who said the white ducklings he has hatched have "always" gotten spots. I'm excited to see how my ducky turns out. If it turns out to be a drake with light coloring, I will be a very happy camper!!
I have been emailing a lady who raised all colors of Ancona ducks. She said that the ones that she has hatched that were white turn out to be silver. She said they are typically white until they are 6-7 months old and feather in with their adult feathers. So maybe you have a silver duckling?