It's just there, on her tail a bit, and wings.
Show off your house ducks! - Page 568
- Banti Bubbles
Forced air stabilizes incubator temperature, adding a fan should fix any hot/cold spots. There are several tutorials out there for how to do it, just google how to install a fan in an incubator and look for your incubator type among the pile of results! If your incubator is big and you want to be super sure of it, consider two fans. They're not expensive or difficult to install, generally.
As for fixing it on a "live duck," you might just have a poor mother on your hands. If you're providing her with a safe, secure nest and all the materials she needs and she's not hatching anything or she's hatching nothing but herniated babies, I would just stop hatching under her. Sounds like a bad broody to me. From the sounds of it you are always candling/checking/pulling eggs so maybe also don't bother her at all for an entire incubation period, just clean everything up, make sure it is all 100% secure, and let her go hands off. I do not mean that in a rude way! But daily tampering is absolutely excessive tampering, undeniably.
You will probably get the best/more specific answers by making a thread in the related forum about it, it will have way more eyes on it. Hatching shouldn't be as hard as it has been for you so the more feedback you get the better and that's going to take broader visibility
Edited by Skink - 5/22/16 at 3:46pm