I swear I read somewhere that Rouens laid pale green eggs, and Runners white ones. I have 2 Rouen ducks and 1 Fawn/White Indian Runner. Almost every day for 4 months I got 3 eggs, 2 pale green and 1 white. So when some hatched I thought I knew who was crossed with whom. However, since I had my runner and the ducklings cooped up in the garage and the Rouens were outside, I have been finding 1 green and 1 white outside. They can't be the runners. Does this mean one of my Rouens is not purebred? Or do I have my facts mixed up? I sure got some interesting colored ducklings. The daddies are either a rouen or a Pekin or both.