Three days ago I took my duck eggs and put them into lock down. I took them from a Little Giant with fan and put them in a still air littl giant. They were due to hatch today. Temps were the same water levels the same and I had 9 confirmed live eggs at beginning of lock down. Yesterday morning I looked because I heard peeping in the incubator. One little chick was zipped through but starting to shrink wrap. So I helped him out he had a bloody umbilical with a mass stuck to it and it soon fell off. He is doing great spunky little guy. I looked later and seen blood in the water in the bottom. So I looked and one duckling had pipped and broke through but died in the shell. So against my better judgement I opened an egg that was moving and pipped. He was alive but noticable yolk still absorbing and partially shrink wrapped. So I opened the rest and all dead in the shell and shrink wrapped. The same thing happened with my chick eggs and I only got three out of that hatch. The one duckling that still had yolk absorbing is doing good and trying to walk seems alert and fiesty. So I have two little ducklings out of nine. I know its a screw up on my part I just do not know what I am doing wrong. They make it fine to lock down then die in the shell from shrink wrapping. Is it from taking from a fanned incubator to a still air? The reason I did it this way is I have chicken eggs in the fanned on the auto turner.