I'd like to know if what I'm seeing are bloodrings or not and maybe learn how they occur. Here's my situation... I had a pair of ducks. My duck hen started laying eggs 6-8 weeks or so ago. Recently, she decided to start sitting on them - she had shown no interest in the eggs up to this point in time. So, she had 3 eggs in her cute, snug little nest. We were keeping her, the drake and a rooster out on the farm and we have been getting a lot of rain. It's very difficult to get to the birds with the rain/mud so it had been 2-3 days since we last checked on the birds. We went out one night once the rain subsided to find a hole in the pen, the rooster dead and drug halfway out of the pen and the ducks missing (eggs still in the nest). Checked area ponds, no ducks I went ahead and took the eggs since I had just set chick eggs in the incubator. Tonight marks 10 days for the chicks, so I was candling them along with the duck eggs. I see what I think is a blood ring. There is definite red circle. I can see that the ducks were forming. I'm suspecting they have died I have them back in the incubator, but is there any hope for them? Or is that red ring a telltale sign that they are gone? What causes the blood rings? In this case, I don't know how long the duck hen had been missing, so I don't know how long the eggs were left exposed (yet in the chicken coop). Not to mention we were on our way out to eat, so the eggs traveled with us to the restaurant and back before being set in the incubator.