Okay I have Four Indian Runner ducks two drakes and two hens. One drake is chocolate the other is Fawn and white. Both hens are Chocolate And I also have a mallard hen all three hens are laying . The Runners are laying a mint colored egg for me and my mallard is laying a olive colored egg and I saw the size difference. So correction I do know the difference lol My chocolate drake has been mating with my Mallard hen so that will be a cross. Fertility rate pretty good I have 6 eggs in there now from them and so far 4 are developing. I can send you a mixture of both if that's what you would like. If you just want mallard then let me know or if you just want runner let me know Yes they really are runners as you can see in the picture of my chocolate runner hen. I bought them at Shiptons Big R in Billings Montana its a feed.ranch,farm clothes store. I don't know where Shiptons get them from. I bought the hens a year ago and soon the Two Runner Drakes and the mallard a little after I got my two hens. (If I get anymore silly questions then I'm gonna close this). Cannot guarantee how the post office handles them once they leave my hands. I do bubble wrap the eggs and try to ship like on a Tuesday the latest I usually is Wednesday. I do ship with a confirmation number.