I just cannot understand why I have problems hatching out duck eggs. I keep the humidity around 55-65% when incubating then bump it to 65-70% after I stop turning. I use and auto turner then lay them flat. I had 5 silky call eggs in the incubator. They were all doing well on day 23 when I stopped turning them. One pipped the shell and 2 died without ever pipping. They were fully formed, but did not absorb the yolk sac. The fluid in the shell was very thick and sticky if that helps at all. Any help or thoughts would be appreciated Thanks!!