- Dec 17, 2011
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Embdens will definitely take a day or two longer. Never had a gosling hatch at 28 days. 30-31 days is more typical. I use a still air styro incubator for hatching. At day 28, I will move over to that bator, then use a stethoscope to listen for clicking sounds. That is when internal pipping complete. Only after internal pipping will I raise humidity to 75%.