So in case anyone was wondering, this is what a frozen duck egg (or any egg for that matter) looks like.
Now, ducks are pretty smart and will actually bury their eggs in bedding to hide them from predators. When properly laid in their duck house, there hasn't been a problem, even with sub zero temps. However, one of our geniuses decided to lay her egg on top of her frozen pond.
I am a 2nd grade teacher by day and a full time farm wife by evening (and weekends and the summer!).