Duck Eggs

Question
A mama duck laid 11 eggs outside our window. We have a lot of mulch and she would cover the nest when she left for a few hours.  Yesterday and this morning we saw ducklings with her in the next.  This afternoon she and and the ducklings are gone but there are a few eggs left (I am not sure how many since I did not want to disturb the nest and there is some mulch on them).  I am afraid since she is now caring for ducklings (the mate has been around also) that these eggs have been abandoned.  Should I try to hatch / incubate them?  What do I do with them if that is possible?

Answer
If a parent duck doesn't return soon yes I would try to hatch or incubate them because if they don't get incubated for 24-48 hours it's too late.

This site gives good tips on how to hatch them.


http://www.duckeggs.com/hatching-eggs.html

Thank you