I'm breeding for white calls. I have 5 male and 5 female breeders that are all white with no black on them. Just had some ducklings hatch and one of them has two black spots on his back. Does this mean that one of my breeders is throwing black, or is this something common on ducklings and will molt out? I found this comment on color standards but it doesn't explain: Major Faults Both: Any black plumage in the mature bird. Minor faults Dark specks on the bill (with age). Both: Elements of black plumage on a young bird.