Frontenac State Park in Frontenac, MN, is along the Mississippi flyway and has the largest number of bird species recorded at any state park in MN. I love it for that and for the diversity of habitat. It is in the Driftless region and has amazing, beautiful bluffs. There is extensive prairie and also, of course, shoreline and riparian forest along the river.
Frontenac SP Association hosts an Instagram account, if you want to see more images. And follow us if you like.
Perhaps more to the point for this forum, there is a Frontenac SP iNaturalist project page, if you want to see - or contribute! - to what has been identified within the park boundaries.