Humidity temperature too high (duck eggs)?

Question

The instructions that we've been following to hatch duck eggs said that the eggs should be kept at 86% until day 25 when the humidity should be raised to 94%. Instead, we accidently set the humidity at 94% for the whole time. It is day 20 for one batch and 23 for the second, and there is no signs of embryo life as far as we can see. Are the ducks dead?

Answer 1

Oops.

Humidity is crititcal when hatching eggs.  Parents get it Just Right.

The embryos may be dead.  Candle one and check it out.