I hatched a chick this morning, I thought all my chicks were done hatching and that the ducks were taking an extra day and I had the last chick hatch this morning. My humidity has been around 75% and I have had good batches with my hatch. Could my humidity control be out of whack? And what happens when duck eggs don't get above 65% humidity? The reason I raised mine the other day was because I had a duckling get shrink wrapped and had to assist his hatch.
Even though ducks are water fowl, some folks thing they can tolerate high humidity well this is not true, they are just developing there lungs and learning how to use them. High humidity like 80 will absolutely kill them.
75 is pushing it, if you can get it lower it's better.., get yourself another gage if they read differently then You know for sure NOT to depend on the one you have been using..
Depends on the duck would explain the assisting. Call ducks need assistance they have small beaks and small necks so they struggle to get out of that shell.
What kind of ducks were you having??