BBS Route · Minnesota · BCR 12
Cromwell Bird Survey Route
A standard 50-stop Breeding Bird Survey route. 146 species recorded across 47 survey years, still active.
146Species Recorded
47Years Surveyed
1967–2024Span
3Observers
Bird Species Found on Minnesota Cromwell
Top 40 of 146 species by most recent count. Each links to its species trend.
| History | ||||||
|---|---|---|---|---|---|---|
| Common Yellowthroat | Parulidae | 32 | 2024 | -26% | 1969 | |
| Red-eyed Vireo | Vireonidae | 27 | 2024 | +11% | 1969 | |
| Ovenbird | Parulidae | 25 | 2024 | +31% | 1969 | |
| Alder Flycatcher | Tyrannidae | 18 | 2024 | +18% | 1969 | |
| Blue Jay | Corvidae | 16 | 2024 | +91% | 1969 | |
| Nashville Warbler | Parulidae | 16 | 2024 | +14% | 1969 | |
| American Robin | Turdidae | 16 | 2024 | -35% | 1969 | |
| Chestnut-sided Warbler | Parulidae | 15 | 2024 | +2% | 1969 | |
| Red-winged Blackbird | Icteridae | 13 | 2024 | -64% | 1969 | |
| White-throated Sparrow | Passerellidae | 13 | 2024 | -56% | 1969 | |
| Song Sparrow | Passerellidae | 11 | 2024 | -54% | 1969 | |
| Mourning Warbler | Parulidae | 11 | 2024 | -4% | 1969 | |
| Veery | Turdidae | 11 | 2024 | -46% | 1969 | |
| Swamp Sparrow | Passerellidae | 10 | 2024 | -32% | 1969 | |
| American Crow | Corvidae | 8 | 2024 | -6% | 1969 | |
| Sedge Wren | Troglodytidae | 8 | 2023 | -7% | 1969 | |
| Bank Swallow | Hirundinidae | 8 | 2022 | -37% | 1974 | |
| Rock Pigeon | Columbidae | 8 | 2024 | +100% | 1982 | |
| Common Grackle | Icteridae | 7 | 2024 | +120% | 1972 | |
| American Goldfinch | Fringillidae | 7 | 2024 | +15% | 1969 | |
| Yellow-bellied Flycatcher | Tyrannidae | 6 | 2024 | +500% | 1971 | |
| Golden-winged Warbler | Parulidae | 6 | 2024 | +133% | 1969 | |
| Canada Goose | Anatidae | 6 | 2023 | -33% | 1999 | |
| Wild Turkey | Phasianidae | 6 | 2024 | +133% | 2018 | |
| Least Flycatcher | Tyrannidae | 5 | 2024 | -66% | 1969 | |
| Black-and-white Warbler | Parulidae | 5 | 2024 | +220% | 1969 | |
| Black-throated Green Warbler | Parulidae | 5 | 2024 | +46% | 1969 | |
| Hermit Thrush | Turdidae | 5 | 2023 | +167% | 1973 | |
| Black-capped Chickadee | Paridae | 5 | 2024 | +200% | 1971 | |
| Pine Siskin | Fringillidae | 5 | 2000 | +400% | 1990 | |
| Double-crested Cormorant | Phalacrocoracidae | 5 | 2001 | n/a | n/a | |
| Mallard | Anatidae | 4 | 2022 | +0% | 1969 | |
| Eastern Wood-Pewee | Tyrannidae | 4 | 2024 | +33% | 1969 | |
| European Starling | Sturnidae | 4 | 2024 | +89% | 1969 | |
| Bobolink | Icteridae | 4 | 2024 | -42% | 1969 | |
| Brewer's Blackbird | Icteridae | 4 | 2002 | +67% | 1969 | |
| Savannah Sparrow | Passerellidae | 4 | 2024 | -73% | 1969 | |
| Chipping Sparrow | Passerellidae | 4 | 2024 | -24% | 1969 | |
| American Redstart | Parulidae | 4 | 2024 | -14% | 1969 | |
| Winter Wren | Troglodytidae | 4 | 2024 | +57% | 1969 |
Source: USGS North American Breeding Bird Survey, retrieved 2026-05-22. A route is a sample, not a census.