I think something found a nest from one of our resident birds.. We have found two separate eggs on different days.
Always on the driveway.
We have a few turkeys that live in our woods, so I looked online and found these photographs of turkey eggs.
And turkey nests being raided by skunks.
Based on this extensive and exhaustive research, I have determined they are turkey eggs.
Whatever it is, it has enjoyed a lovely breakfast. At the expense of a hapless turkey. Perhaps.