Hello! I have a pekin and a blue runner and I am very confused on who the egg belongs to. They are the same age, little over 5 months, and one started laying about a month ago, and I assumed this was the blue runner since they seem to lay before pekins. It's a large white egg, some are really huge and have two yolks. Even though I had no idea how that egg came out of the small blue runner, I just let it go. Now the other duck started laying. I have small blueish tint or a olive green kind of looking egg and now I am confused who is laying what. Any ideas? Also, the pekin duck has some gargling egg shell nosie coming out of her all of a sudden if that is related. Thank you!