Oh my gosh! I have ducks! I don't understand, but... (Breathe, girl!) I sent three duck eggs because it wasn't making sense that the previous owner said that they had had fertile eggs before. When I candled a few days ago, I didn't see anything. I assumed that I was correct and that once again, the eggs were not fertile. Of course, it takes more than five days for a duck egg to start veining that I can see it. Since I'm awake anyway, and hatch a batch said it was time to candle the chicken eggs, I candled the duck eggs. The first one was clear. I wasn't going to bother checking the other two. I was just going to throw them all away.
Then, I decided to leave them in for a few more days. Check a chicken egg, It looked odd because I'm not used to incubating my as laying down. So I checked another duck egg to see if it looked the same. I saw veins!!
I only candled two more chicken eggs, and saw veining in those two as well.