Pipping confusion

Ok, I have two more questions. Wasn't sure if I needed a new post so went for lazy and didn't.
Wondering if it's "normal" for ducklings to fall into their air cell while trying to hatch. I've had several from this group of rescued Pekin eggs that pipped into their air cell, pipped externally and then stop. I don't want to rush them so I wait at least 24 hours before making the hole bigger, and when I finally do pick away some shell, the whole air cell is full of duckling. I currently have one who had an external hole early on Sunday. He had a second "hole", like he was zipping maybe, yesterday morning but then he didn't do much after that. I didn't start helping him until this morning, and only helped because he sounded ANGRY. When I picked some shell off the air cell, the air cell was full of duckling again. It's like they pip, get frustrated, struggle and fall into the air cell and then they're stuck. Or seem to be stuck. Am I right that they're probably stuck once they're in the air cell? It's body that's falling in if I didn't mention that already. They look like they're doing backwards summersaults into their air cell. So by the time I help them their head is probably about even with their hips.

The only one that hatched fully unassisted, I never saw him in the air cell and he hatched MUCH faster than the ones I've waited to assist. He went from external pip to hatched in less than 24 hrs. But, he left a flop of something yellow in the incubator. I'm not sure what it was. The best way I can describe it is the lemon part of lemon meringue pie. It wasn't milky yellow, or opaque yellow. More like yellow...jelly? He didn't seem bothered by whatever it was. His belly was closed so I just assumed it was some sort of egg gunk. Do I want to know what it might have been?

All of these eggs spent most of their incubation with Mama duck outside (HIGH heat and humidity lately if that matters). They've only been inside in the incubator a week-ish.
 
I went back to try to take a picture of the latest air cell tumbler but he was out already. Poor guy really does sound angry. His belly is all closed, looks good there. I swear he's glaring at me though...creepy!
 
What humidity where they at for the last week of incubation?
We brought them inside on July 27 (if that was the Saturday of that weekend) and one started pipping on Sunday so bumped the humidity up to about 55-60%-ish once he started. I didn't want to bump it up too much because I didn't know how far along the others were and I had some eggs that just went in on 7-17. Probably shouldn't have added these to the same incubator but I only have one incubator and didn't want to leave these in the nest since we were finding dead ducklings out there every day.
I can't remember what the humidity is right now.
 

No, I hadn't seen those before. Very helpful! That baby looks...wetter than the ones I've helped. Maybe I'm letting mine dry out too much or going too slow?
I always second guess myself before helping and reread what I can find on here about helping. I don't want to help too soon. Usually once they start sounding frustrated I figure they need help. There seems to be a difference between normal peeping and "I want out! NOW!!" peeping. Even with the frustrated peeping I go slow. This last guy, I swear he was having temper tantrums in that shell when I put him back in to wait before I'd help more. I thought he'd tantrum his way out!
 
I would say normal for them to fill up the air cell. As they pip and struggle they break that inner membrane and end up pretty much filling out the air cell. Anyway. . mine have.
All of mine that have hatched without assistance have made more than one pip hole as they turn in the egg before zipping.
I try to judge when to help farther by watching for yawning and chewing. Usually if they are yawning and making a chewing motion they are still absorbing yolk.
If they are tantrum throwing. .they are usually stuck and ready for help :lol:
 
If they are tantrum throwing. .they are usually stuck and ready for help :lol:

I've been watching for yawning and chewing before helping. This guy wouldn't stop telling at me long enough to yawn or chew. He seemed to have freaky neck strength. Must have been the anger. He was holding his head up really well, glaring at me and yelling from the incubator. I'm pretty sure he was yelling some sort of threats.
Glad to hear the backwards summersaults into the air cell is normal. Maybe these have been getting stuck because they're getting their head above their wing? Only 2 have tried zipping counter clockwise, the others go clockwise. I had two stick their right wing out their pip holes and then they just stayed there yelling. The one that hatched all on his own popped and zipped counter clockwise.
 
I've been watching for yawning and chewing before helping. This guy wouldn't stop telling at me long enough to yawn or chew. He seemed to have freaky neck strength. Must have been the anger. He was holding his head up really well, glaring at me and yelling from the incubator. I'm pretty sure he was yelling some sort of threats.
Glad to hear the backwards summersaults into the air cell is normal. Maybe these have been getting stuck because they're getting their head above their wing? Only 2 have tried zipping counter clockwise, the others go clockwise. I had two stick their right wing out their pip holes and then they just stayed there yelling. The one that hatched all on his own popped and zipped counter clockwise.
I don't guess I've ever paid attention to which direction they zip. :p
 

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