Just candled my duck eggs!! I have nine eggs in the bator. three pure bred rouen eggs, and six are rouen X khaki campbell mutt eggs. From what I can see there are little red veins in all the mutt eggs, but I see none in the rouen eggs? The mutt eggs were layed by khaki hens, so the shells are very light colored, so they are easy to see through. And the rouens shells are green, so is that why I cant see the veins? Thanks! BTW these are home grown eggs, and were put in on the 13th.