Why revive, because they are good eating. They were a very important source of protein in the diet of poor settlers and slaves for centuries. There are probably plenty of people who would eat them today if they were available in quantities, and a lot of them would be lower income.
The Passenger Pigeon went extinct because of the demand for squab back east, and the ease with which huge numbers could be harvested with a couple of shotgun blasts. They didn’t come back because of habitat destruction (their big nesting area was over in the Thumb of Michigan somewhere, like the rest of the state it got lumbered out).