Hatch Day Is Today But They Have Not Pipped

[Jedika98]

Hi,
I have 3 duck eggs in the incubator and when they were candled it I could see the duckling forming. The eggs wiggle every so often but non have pipped. It is not 7:05pm on hatch day and non have pipped. I am starting to get worried. What should I do? Also any help on incubating duck eggs is helpful.
Jedika98

 

[CelticOaksFarm]

ducks cant read and dont follow calendars. 28 days is a guideline, and not the golden rule that all eggs will hatch on day X. Anything can effect the hatch, from cool spots in an incubator, to an incubator that wasnt calibrated, to humidity issues. On average ducks take 3 days to fully hatch from first internal turn, to internal pip, to external pip, turning, zipping and hatching. They rest for prolonged periods of time during the process as well making it look like nothing is happening at all.