My Mallard Duck was sitting on 12 eggs. She managed to hatch out six, one was found dead, looked like it may have been trampled. She left the nest with the ducklings. I took the rest of the eggs inside to candle them. There was one that had an internal pip. I put it in a styrofoam cooler with a 40 watt reading lamp clamped on one end and containers of water. I had a cheap therometer in it that said I was at 100 degrees and the humidity would go no higher than 50. I put a safety hole in it since I had no idea when it had done the internal pip. The beak tip got exposed and it would peep. This went on for hours with no advancement. I finally decided to assist after being up almost all night adding water to paper towels and trying my best to get the humidity to stay at least 50. I had a towel draped on only half of it and the rest of the cooler was exposed. It had been over 48 hours and the little one was starting to breathe heavily. I picked away at the shell with my fingers. The membrane was a dark gooey brown. I kept looking inside the egg to make sure the yolk was absorbed. There was no sign of it. After several minutes I got it out. It was quite sticky so I put it under the faucet with warm water and then set it back in the homemade incubator. Now 5 hours later it is up running around and doing just fine. Thank You Lord. I thought driving a School Bus could be nerve racking but it does not compare to assisting this little one into the world for me. I am just happy I made the decision I did because everything was fine on the inside, it just couldn't break the egg. It is a 37 day old hatchling. I have 2 six year old Rouen Hens, one 10 month old Muscovy Duck, one Muscovy drake and one mallard drake. I am thinking it may be a mule due to how long it took to hatch. It was a smaller white egg so I am thinking that the Mother might have been my Muscovy and the drake my Mallard. It looks like a baby mallard but my Mallard hens lay light green eggs. Sorry to ramble on, no sleep but just wanted to share.