So we "rescued" some duck eggs that were being cared for by a friend's broody hen while we were chicken/duck sitting for him. We NEVER would have intervened, except for the fact that we didn't realize the eggs were beginning to hatch until one of the ducklings fell out of the nesting box and was killed by the rest of the flock of chickens. We decided that was enough duck trauma to last us a while, so we took the remaining ducklings and the three unhatched eggs home and put them in a relatively crude incubator at home (I can post pics of it, if needed.) The incubator has worked surprisingly well, and one of the three eggs has already hatched, and we have another that has just today pipped (I should mention that our friend didn't put all the eggs under the broody hen at the same time...he put them in one a day as his duck laid them, so this has made things very difficult as far as estimating when they will hatch). I expect things with our pipped egg to go fine, but here's the deal: the third egg, when we took it out from under the hen, was dented/cracked on one side. I assume the hen inadvertently stepped on it or some such thing. The outer membrane was still intact, however, so I warmed up some beeswax (the only wax we had on hand) and tried to seal the hairline cracks and the dent. I candled the egg later that day, and there was an active, seemingly healthy duckling in there! Fast forward to about three days ago, I candled the egg and saw that the air sac has been getting larger (as it should?), but that there was no movement in the egg, save for one little bit of shadow that was moving/pecking/bobbing on just one side. Today, there was even less movement. I would like to save this little guy, and I have done as assisted hatch before (our first duckling to hatch here struggled), so I'm wondering what to do/if I should do anything? I am guessing that the crack in the shell let more moisture escape than should have, and maybe he's a bit sticky/having trouble getting through the inner membrane to internally pip. Maybe I should cut a rescue hole in the shell into the air space, since what can I really hurt at this point, when the other side of his shell is cracked? It may be too late already, but I wouldn't feel right if I didn't make an effort to help this little guy out. I will post pictures today after work, but ANY thoughts would be greatly appreciated.