Hatching- Weird Air Bubble Just Developed

[GirlsMommy18]

It's been 4 days since the others hatched, and I have one egg left in an incubator, but the last surviving egg has just developed an air bubble on top of the egg. I can see movement, but there are no internal pips, and it looks like no room left. What is happening? Is this a sign of malposition? Shrink wrap? Is there something I should do?
My dad brought me feral Muscovy eggs after the mom was eaten by a coyote. They were hatching and went several hours without incubation. Followed by a 3 hour car ride in a cooler with warm towels. 7/10 hatched under my broody hen, 2 quit. Not sure what is going on here....

 

[GirlsMommy18]

Seriously, anyone have any idea why it now appears to have 2 separate air cells? It was not like that when the broody gave up on it a couple days ago?

 

[GirlsMommy18]

In case anyone else has something like this happen, the duckling was shrink wrapped. I waited too long to make a hole in the air cell to check. It was moving this morning but dead after dinner.

 

[Allykat85]

Seriously, anyone have any idea why it now appears to have 2 separate air cells? It was not like that when the broody gave up on it a couple days ago?

Hi. I had the same happen to me a few weeks ago with my chickens egg. All the eggs hatched but two and when I candles them it appeared that they both now had what appeared not one but two other different air cells aside from the one that is actually suppose to be there. I had no idea what it meant or what had happened. It turned out to be that the embryo had actually died at some point and the "air cells" I was seeing turned out to be ....were...gas pockets maybe?? Because the dead embryo inside. So I don't know if this were the same thing maybe that happened with your little duckling or not.

 

[GirlsMommy18]

Hi. I had the same happen to me a few weeks ago with my chickens egg. All the eggs hatched but two and when I candles them it appeared that they both now had what appeared not one but two other different air cells aside from the one that is actually suppose to be there. I had no idea what it meant or what had happened. It turned out to be that the embryo had actually died at some point and the "air cells" I was seeing turned out to be ....were...gas pockets maybe?? Because the dead embryo inside. So I don't know if this were the same thing maybe that happened with your little duckling or not.

I've seen that happen as well with my chicken eggs. This one was definitely moving that morning though. My best guess is the car ride had loosened the membrane and it pulled it so it was noticeable while it struggled to hatch. Membrane was tight on the poor baby and visibly drying. I didn't finish an eggtopsy to see if anything else was wrong, but it may have had much more than was easily visible through the attempted rescue hole. Heck, if the membrane peeled where vessels were active, it may have bled some, but I think I would have noticed a lot of blood even through the small hole.

They went 9 hours during pipping without incubation after the mom died, so I was shocked that 7 of the 10 eggs hatched successfully. Had this one, another hatch with an unabsorbed yolk that didn't make it, and one that just seemed to quit and otherwise looked fine that didn't make it. Most of them were very lucky.