I passed two of these rotating informational signs on the trail today. This one had been vandalized to look more like Pac-Man. Following along with the video, we see: State Mushroom (Morel), State Butterfly (Monarch), State Bird (Common Loon), and State Flower (Showy Lady's-Slipper). The second sign contained info on the state's biomes, wild turkeys, eutrophication, and James J. Hill.
It’s a shame about the vandalism, but very informative.
When I was a kid, growing up in Minnesota, the state bird was the mosquito.