BBS Route · Wisconsin · BCR 23
Merrill Bird Survey Route
A standard 50-stop Breeding Bird Survey route. 131 species recorded across 45 survey years, still active.
131Species Recorded
45Years Surveyed
1966–2024Span
8Observers
Bird Species Found on Wisconsin Merrill
Top 40 of 131 species by most recent count. Each links to its species trend.
| History | ||||||
|---|---|---|---|---|---|---|
| Red-winged Blackbird | Icteridae | 46 | 2024 | -21% | 1969 | |
| Common Yellowthroat | Parulidae | 39 | 2024 | +29% | 1969 | |
| American Crow | Corvidae | 32 | 2024 | +84% | 1969 | |
| American Robin | Turdidae | 32 | 2024 | -30% | 1969 | |
| Song Sparrow | Passerellidae | 29 | 2024 | -39% | 1969 | |
| European Starling | Sturnidae | 28 | 2024 | -79% | 1969 | |
| Cedar Waxwing | Bombycillidae | 27 | 2024 | +53% | 1969 | |
| Red-eyed Vireo | Vireonidae | 19 | 2024 | +63% | 1969 | |
| Ovenbird | Parulidae | 18 | 2024 | +117% | 1969 | |
| Indigo Bunting | Cardinalidae | 16 | 2024 | +32% | 1969 | |
| Mourning Dove | Columbidae | 15 | 2024 | +275% | 1972 | |
| Rose-breasted Grosbeak | Cardinalidae | 12 | 2024 | +3% | 1969 | |
| American Redstart | Parulidae | 11 | 2024 | +371% | 1969 | |
| Ruffed Grouse | Phasianidae | 11 | 2002 | +17% | 1989 | |
| American Goldfinch | Fringillidae | 10 | 2024 | +0% | 1969 | |
| Yellow Warbler | Parulidae | 10 | 2024 | +96% | 1969 | |
| Blue Jay | Corvidae | 9 | 2024 | +4% | 1969 | |
| Savannah Sparrow | Passerellidae | 9 | 2024 | -88% | 1969 | |
| Chipping Sparrow | Passerellidae | 9 | 2024 | -19% | 1969 | |
| Black-capped Chickadee | Paridae | 9 | 2024 | +173% | 1969 | |
| Red Crossbill | Fringillidae | 9 | 1980 | n/a | n/a | |
| Least Flycatcher | Tyrannidae | 8 | 2024 | +24% | 1969 | |
| Brewer's Blackbird | Icteridae | 8 | 2015 | -52% | 1969 | |
| Common Grackle | Icteridae | 8 | 2024 | -32% | 1973 | |
| Barn Swallow | Hirundinidae | 7 | 2024 | -63% | 1969 | |
| Chestnut-sided Warbler | Parulidae | 7 | 2024 | +75% | 1969 | |
| Eastern Bluebird | Turdidae | 7 | 2017 | +117% | 1970 | |
| Dickcissel | Cardinalidae | 7 | 2021 | +200% | 1971 | |
| Canada Goose | Anatidae | 7 | 2012 | +29% | 2002 | |
| Alder Flycatcher | Tyrannidae | 6 | 2024 | +9% | 1969 | |
| Black-and-white Warbler | Parulidae | 6 | 2024 | +100% | 1969 | |
| Northern House Wren | Troglodytidae | 6 | 2024 | -24% | 1969 | |
| Veery | Turdidae | 6 | 2024 | -46% | 1969 | |
| Sandhill Crane | Gruidae | 6 | 2023 | +22% | 1997 | |
| Tree Swallow | Hirundinidae | 5 | 2024 | -46% | 1970 | |
| Chimney Swift | Apodidae | 4 | 2024 | +133% | 1970 | |
| Eastern Kingbird | Tyrannidae | 4 | 2024 | +25% | 1969 | |
| Baltimore Oriole | Icteridae | 4 | 2024 | -11% | 1969 | |
| Sedge Wren | Troglodytidae | 4 | 2024 | -71% | 1969 | |
| Northern Cardinal | Cardinalidae | 4 | 2024 | +0% | 1992 |
Source: USGS North American Breeding Bird Survey, retrieved 2026-05-22. A route is a sample, not a census.