Calls usually hatch in 26 days. I rarely have them go over that.
They do
not require higher humidity. Matter of fact, I just finished a round of porcelain d’Uccle and call ducks too! I set them about 5 days apart, but the d’Uccles pipped and hatched on day 19 and 20, sooner than I expected. I moved them to a different incubator to hatch, because I came home one evening they were all pipped early

Then the ducks hatched a couple days later.
Better quality calls take a little more care to hatch, and often require assistance. Their bills and necks are both short, which can make it hard for them to pip. But they are soooo worth it!

Not much cuter in my opinion than a baby call duckling.
Best of luck with your hatch. I’d hold the call eggs and wait a few days to set them, if you want them to hatch together.
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