I finally looked out and saw the mallard pair sitting in the front yard. The ducks eventually wandered towards the bushes and began to peck at the ground. A short while later, I saw them waddling up the driveway. Something must have scared them, because they suddenly flew back to the pond.
Now that the ducks are becoming more comfortable and roaming the property, we will need to use extra care when letting the dogs out or backing out of the driveway.