Birding spots · Iowa
Best Birding Spots in Calhoun County, Iowa
South Twin Lake leads Calhoun County's birding spots with 183 species reported, best in fall. 1 spot in the county has 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 |
|---|---|---|---|---|---|
| South Twin Lake | 183 | 4 | 113 | 118 | 124 |