Yellow Duckling From Rouen?

[wilsomom]

I have 3 Rouen Ducks, 1 Rouen drake and 1 Khaki Campbell duck. I've got eggs hatching in my incubator and a few are completely yellow! How did this happen? TIA

 

[chickens really]

Must be from the khaki Campbell Hen. They are crosses then..

 

[wilsomom]

That's what I was thinking, thank you!