duck egg color?

[Missy317]

I have 4 ducks.Two Peking one female and one is a drake and two roeuns both female. I get Two white eggs in my coop and one green where ever she decides to drop it.I was wondering if I have mix breeds as everything I have read says Peking lay white and roeuns lay green.It doesn't add up lol Either my Peking(Olivia) is laying two a day and my Roeuns (shugg and Celie) are taking turns! Any answers would be helpful.
thanks
Missy

 

[HollyDuckFarmer]

I have Rouens that lay white. If you *really* want to know who is laying which egg, get some liquid food coloring, assign each girl a color and give her a single drop in the vent. I do this in the later evening. The next day, when she lays, her egg will be tinted with the color you assigned her. Yellow doesn't always show up so well, so you might be wise to avoid yellow. Do this and you'll know for sure.

 

[learycow]

Pekins are known to lay only white eggs.
Rouens, on the other hand, can lay white or green. Only a small percentage of rouens will lay green eggs, but it sounds like you have one of them!
Pictures would be helpful in determining if you have mixes or not, but the fact that she lays a green egg doesn't mean she isn't pure