So sorry to hear that they are gone. More than likely a bird of prey got them. If you have cranes in your area they are notorious for picking them off along with hawks, owls and crows. I would say with Momma being without them that something got them. Hopefully she will not hatch anything else out because the same thing will more than likely happen. Thank you for looking out for them like you did and being concerned about them. You did your best for a Momma duck that made a bad decision on where to build a nest.We thought about doing this, but worried that they might drown, or that the Mama duck wouldn’t have anything to do with them. I didn’t look in on them last night because they had water and food. Today I had a dental appt and then we went to Tractor Supply Company to buy the duckling crumbles. When we got home later this afternoon we took the crumbles and water out to the boat to check on them. They were gone, and the nest was a little disheveled. Mama duck was swimming around the boat. So, we don’t know what happened to the little ducklings. Either they were somehow moved by Mama, or they were picked off by a bird of prey if they wandered out of the covered area into the open cockpit, which is where the food and water was set up. There was not enough room to set up food and water in the small covered area where the nest is. There was no evidence of them being picked off, but we’re at a loss as to where they are. We’ll look around our yard and the neighbor’s yard and watch the boat ramp road to see if she guides them down the boat ramp into the water. The boat ramp road is right next to our property. So, for now we don’t have the three little ducklings, only 5 eggs that haven’t hatched. I’ll continue to set out water and crumbles in case Mama comes back to sit on the nest. I wish I knew where the ducklings are or if they survived. I hope they’re alright.