Birding spots · Iowa
Best Birding Spots in Mills County, Iowa
Glenwood Archaeological State Preserve leads Mills County's birding spots with 84 species reported, best in spring. 2 spots in the county have enough data to rank.
Species counts are birds reported at least three times in that season at that spot, 2016–2025. Busy spots list more species simply because more people look, so compare the checklist counts. Spot names come from public map data and hotspot listings.
| Spot | Species | Winter | Spring | Summer | Fall |
|---|---|---|---|---|---|
| Glenwood Archaeological State Preserve | 84 | 13 | 63 | 46 | 40 |
| Folsom Lake | 68 | 6 | 43 | 27 | 0 |