BBS Route · Connecticut · BCR 30
Greenwich Bird Survey Route
A standard 50-stop Breeding Bird Survey route. 110 species recorded across 42 survey years, still active.
110Species Recorded
42Years Surveyed
1967–2018Span
10Observers
Bird Species Found on Connecticut Greenwich
Top 40 of 110 species by most recent count. Each links to its species trend.
| History | ||||||
|---|---|---|---|---|---|---|
| American Robin | Turdidae | 54 | 2018 | -19% | 1969 | |
| Tufted Titmouse | Paridae | 35 | 2018 | +46% | 1969 | |
| Chipping Sparrow | Passerellidae | 33 | 2018 | +69% | 1969 | |
| Song Sparrow | Passerellidae | 31 | 2018 | +1% | 1969 | |
| Northern Cardinal | Cardinalidae | 27 | 2018 | +18% | 1969 | |
| Gray Catbird | Mimidae | 22 | 2018 | -12% | 1969 | |
| American Crow | Corvidae | 20 | 2018 | -61% | 1969 | |
| Common Grackle | Icteridae | 16 | 2018 | -75% | 1969 | |
| American Goldfinch | Fringillidae | 16 | 2018 | +175% | 1973 | |
| Mourning Dove | Columbidae | 15 | 2018 | -63% | 1969 | |
| Blue Jay | Corvidae | 14 | 2018 | -65% | 1969 | |
| White-breasted Nuthatch | Sittidae | 14 | 2018 | +30% | 1969 | |
| Downy Woodpecker | Picidae | 12 | 2018 | -3% | 1969 | |
| Black-capped Chickadee | Paridae | 12 | 2018 | -27% | 1969 | |
| Northern House Wren | Troglodytidae | 10 | 2018 | -27% | 1969 | |
| Brown-headed Cowbird | Icteridae | 8 | 2018 | -29% | 1969 | |
| House Sparrow | Passeridae | 7 | 2018 | -75% | 1969 | |
| Chimney Swift | Apodidae | 7 | 2018 | +180% | 1975 | |
| Red-eyed Vireo | Vireonidae | 6 | 2018 | -25% | 1969 | |
| Eastern Bluebird | Turdidae | 6 | 2018 | +25% | 1969 | |
| Field Sparrow | Passerellidae | 5 | 1998 | -59% | 1973 | |
| Warbling Vireo | Vireonidae | 5 | 2018 | +200% | 1977 | |
| Carolina Wren | Troglodytidae | 5 | 2018 | +33% | 1983 | |
| Baltimore Oriole | Icteridae | 4 | 2018 | -88% | 1969 | |
| House Finch | Fringillidae | 4 | 2018 | -52% | 1969 | |
| Scarlet Tanager | Cardinalidae | 4 | 2015 | -47% | 1969 | |
| Hermit Thrush | Turdidae | 4 | 1972 | n/a | n/a | |
| Red-bellied Woodpecker | Picidae | 4 | 2018 | +18% | 1979 | |
| Barred Owl | Strigidae | 4 | 2014 | n/a | n/a | |
| Eastern Wood-Pewee | Tyrannidae | 3 | 2018 | -50% | 1969 | |
| Fish Crow | Corvidae | 3 | 2018 | +125% | 1998 | |
| Red-tailed Hawk | Accipitridae | 3 | 2017 | +100% | 2007 | |
| Wood Duck | Anatidae | 2 | 2014 | -33% | 1977 | |
| Ring-necked Pheasant | Phasianidae | 2 | 2000 | -80% | 1969 | |
| Rock Pigeon | Columbidae | 2 | 2018 | -81% | 1979 | |
| Eastern Meadowlark | Icteridae | 2 | 1969 | +0% | 1967 | |
| Rose-breasted Grosbeak | Cardinalidae | 2 | 2018 | -93% | 1969 | |
| Barn Swallow | Hirundinidae | 2 | 2018 | -58% | 1969 | |
| Wood Thrush | Turdidae | 2 | 2018 | -93% | 1969 | |
| Tree Swallow | Hirundinidae | 2 | 2017 | +25% | 1976 |
Source: USGS North American Breeding Bird Survey, retrieved 2026-05-22. A route is a sample, not a census.