I have some duck eggs in the bator and I am on day 19. On day 10 I did my first ever candling. Pretty darn cool. Well, I found 2 eggs that were no good and tossed them. Now I have 10. Tonight I candled them to see how they were doing. I found 1 no good and tossed. Now, 2 are questionable. I know there is suppose to be an air pocket at the wide end of the egg. I have 2 eggs that have air pockets on both sides and rather far up on the pointy end. I watched and there was something moving like the little duck not liking the light. The other eggs were all dark except on the wide end. Is there a problem with the 2 eggs? Or could they be under developed compared to the others? I haven't incubated duck eggs before and this is the first time candling. I have hatched chickens but they are in dark brown eggs so I never tried to candle them.