Incubation Time for Duck Eggs?
They will take 28-35 days to hatch. Sorry, but I wouldnt take the boat out until they hatch. They need to stay at an almost constant temperature in order to hatch. Its good the mother comes back, but the mother needs to sit on her eggs almost all the time. Good...
What to Do if You Find an Abandoned Duck Nest?
Personally, I would take the eggs, but only because I have raised ducklings, and I have an incubator. Make sure there is no way she is coming back, and put them in the incubator. Good Luck!