I thought one of my duck eggs had died from what I saw candling, but I was wrong. It was also the one egg that I never saw rocking. Only maybe about 40-50% of the egg was shadowed & on top of that it was pretty much all on one side with little to no veining. It looked nothing like the others that had been rocking for days & are full of veins. I saw movement in there a few days ago so I knew it was pretty formed (they were due the 21st). I poked a hole in the large end of the egg so I wouldn't break the membrane just in case & when I put my finger against the membrane, it kicked back! I put a damp cloth around the hole & put it back, after checking on it a few minutes ago it is still alive. After the membrane got a little wet I could see the duckling was bigger than it looked & it does have some veining. What could be going on? Could it be deformed & small?