Flying bug infestation
I have an infestation of flying bugs in my lawn. They look like giant mosquitoes, about 2 inches long.
Oakland County Michigan
If the insects have thin legs, large wings, and look similar to the ones in the following photos, you may have craneflies.
If you're seeing 50+ crane flies, you will wish to monitor your lawn in the next year, as the larval stage feed on turf: https://www.canr.msu.edu/news/european_crane_flies_observed_around_lawns_and_homes_in_southern_michi...