Title Why are there swarms of midge flies by Lake Michigan every spring? Fri, 2025-05-30 12:50 Great Lakes Commission Every spring, adult midge flies emerge by the Milwaukee lakefront in giant swarms to mate, procreate and lay their eggs in Lake Michigan. Though they may be a nuisance, midges […] Great Lakes Commission, bats, Birds, fish, Food, lake, Lake Michigan, May, Michigan, Milwaukee, Other, play, Source, Water