My ducks started pipping externally yesterday afternoon, but there are still just cracks around the shell today, no one has really broken through except for one. I am concerned because the room I have them in doesn't have very good humidity. I'm running the dryer in there to up it right now because it makes it very humid in there but I want to know if I will need to help them. One of them does have a hole where I can see his beak and when I see inside I can see that he has a large vein on the outside of his body. I am concerned about them becoming shrinkwrapped by the membrane because of the low humidity. Any advice or tips would be great. I was given these eggs by a family member a week ago and they were pretty far along and I've been incubating them since.