I have 3 girl ducks 2 pekin and 1 rouen and 1 rouen drake. This fall I started getting 2 eggs, 1 very light bluish/greenish and the other white. I assumed that it was both pekins laying since they mature faster and they always lay early in the morning before I can see who it is. So the other duck started laying, another light bluish/greenish egg. Which makes me think that I had the original layers wrong and that the white belongs to the rouen and the colored belong to the pekins. That being said it possible that the pekins dad was a rouen my MIL has both pekins and rouens mixed in the same area, not sure that makes any difference on egg color. I just thought pekins layed white eggs. Any thoughts on the matter? Not that it makes a lot of difference but if I sell any hatching eggs this spring it would be good if the rouens egg was a different color as they would be what I sold....