I have nine duck eggs in the incubator that are alive and doing well on day 22. Seven of the eggs are are almost completely dark or filled when I candle them, like I would expect. Two of the nine eggs are strange. The part which contains the blood vessels and fills the other eggs, only goes about half to two thirds the way around in those eggs. I thought the babies might not be alive but then I saw them both clearly moving around. In fact, because half to a third of the egg is not covered, it is easier to see in them than the others and see what looks like a pulse or slight rhythmic movement of the duckling. Both of the eggs came from my oldest duck who lays large eggs with huge yolks. Any ideas? Are these two duckling behind in development? Can they possible survive? This is my fourth time hatching eggs and I have never seen this before.
