BBS Route · Wisconsin · BCR 12
Couderay Bird Survey Route
A standard 50-stop Breeding Bird Survey route. 147 species recorded across 49 survey years, still active.
147Species Recorded
49Years Surveyed
1969–2019Span
10Observers
Bird Species Found on Wisconsin Couderay
Top 40 of 147 species by most recent count. Each links to its species trend.
| History | ||||||
|---|---|---|---|---|---|---|
| Red-eyed Vireo | Vireonidae | 52 | 2019 | +41% | 1972 | |
| American Robin | Turdidae | 49 | 2019 | +42% | 1972 | |
| Ovenbird | Parulidae | 48 | 2019 | +21% | 1972 | |
| Chestnut-sided Warbler | Parulidae | 26 | 2019 | +90% | 1972 | |
| Song Sparrow | Passerellidae | 23 | 2019 | -34% | 1972 | |
| Veery | Turdidae | 18 | 2019 | -26% | 1972 | |
| Ring-billed Gull | Laridae | 16 | 2012 | +700% | 1993 | |
| Blue Jay | Corvidae | 13 | 2019 | -38% | 1972 | |
| Chipping Sparrow | Passerellidae | 13 | 2019 | -19% | 1972 | |
| American Crow | Corvidae | 12 | 2019 | -79% | 1972 | |
| Common Yellowthroat | Parulidae | 11 | 2019 | -13% | 1972 | |
| Indigo Bunting | Cardinalidae | 10 | 2019 | -57% | 1972 | |
| Tree Swallow | Hirundinidae | 10 | 2019 | -58% | 1972 | |
| Yellow Warbler | Parulidae | 10 | 2019 | -29% | 1972 | |
| Gray Catbird | Mimidae | 10 | 2019 | -36% | 1972 | |
| American Goldfinch | Fringillidae | 9 | 2019 | -75% | 1972 | |
| Rose-breasted Grosbeak | Cardinalidae | 9 | 2019 | -46% | 1972 | |
| Nashville Warbler | Parulidae | 9 | 2019 | +0% | 1972 | |
| Mourning Dove | Columbidae | 7 | 2019 | +31% | 1973 | |
| Alder Flycatcher | Tyrannidae | 7 | 2019 | +214% | 1972 | |
| Red-winged Blackbird | Icteridae | 7 | 2019 | -83% | 1972 | |
| Yellow-bellied Sapsucker | Picidae | 6 | 2019 | +175% | 1973 | |
| Bank Swallow | Hirundinidae | 6 | 2017 | +9% | 1972 | |
| Yellow-throated Vireo | Vireonidae | 6 | 2019 | +80% | 1972 | |
| Pine Warbler | Parulidae | 6 | 2019 | +133% | 1972 | |
| American Redstart | Parulidae | 6 | 2019 | -30% | 1972 | |
| Black-capped Chickadee | Paridae | 6 | 2019 | -43% | 1972 | |
| Eastern Bluebird | Turdidae | 6 | 2019 | +89% | 1972 | |
| Swamp Sparrow | Passerellidae | 6 | 2019 | +160% | 1975 | |
| White-throated Sparrow | Passerellidae | 5 | 2019 | +67% | 1972 | |
| Mourning Warbler | Parulidae | 5 | 2019 | -67% | 1972 | |
| American Bittern | Ardeidae | 4 | 2017 | -56% | 1974 | |
| Rock Pigeon | Columbidae | 4 | 2019 | +346% | 1973 | |
| Common Raven | Corvidae | 4 | 2019 | -33% | 1973 | |
| Baltimore Oriole | Icteridae | 4 | 2019 | -75% | 1972 | |
| Brewer's Blackbird | Icteridae | 4 | 2011 | +31% | 1972 | |
| Eastern Wood-Pewee | Tyrannidae | 3 | 2019 | -39% | 1972 | |
| European Starling | Sturnidae | 3 | 2019 | -79% | 1972 | |
| Northern Rough-winged Swallow | Hirundinidae | 3 | 2016 | +25% | 1973 | |
| Black-and-white Warbler | Parulidae | 3 | 2019 | +30% | 1972 |
Source: USGS North American Breeding Bird Survey, retrieved 2026-05-22. A route is a sample, not a census.