I posted earlier about having way to many eggs, so i believe im going to sell them and ship them. I know that out of the 8 eggs i put in the incubator 7 hatched, so there fertile. Is there any way to make sure they are all fertile? Also i have duck eggs, In two weeks i get about 18. The laying duck is a mallard, and the "Dads" are a Indian racing, and a plain big white duck ha. My hens are as followed: a bantam, Plymouth rock, and a white plain chicken. As you can tell im not educated in breeds of chickens ha or ducks. Any tips on how to tell if the ducks eggs are fertile will help lots. And also any tips on shipping or payments would be greatly appreciated!