Birding spots · Illinois
Best Birding Spots in Calhoun County, Illinois
Two Rivers National Wildlife Refuge leads Calhoun County's birding spots with 166 species reported, best in summer. 3 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 |
|---|---|---|---|---|---|
| Two Rivers National Wildlife Refuge | 166 | 62 | 102 | 115 | 77 |
| Birding spot near Brussels (Murphy Slough) | 152 | 52 | 52 | 113 | 75 |
| Birding spot near Brussels (Deer Plain) | 93 | 5 | 58 | 52 | 8 |