BBS Route · Pennsylvania · BCR 28
Bow Bridge Bird Survey Route
A standard 50-stop Breeding Bird Survey route. 122 species recorded across 51 survey years, still active.
122Species Recorded
51Years Surveyed
1969–2023Span
3Observers
Bird Species Found on Pennsylvania Bow Bridge
Top 40 of 122 species by most recent count. Each links to its species trend.
| History | ||||||
|---|---|---|---|---|---|---|
| American Robin | Turdidae | 32 | 2023 | -48% | 1971 | |
| Red-winged Blackbird | Icteridae | 28 | 2023 | -83% | 1971 | |
| Common Yellowthroat | Parulidae | 22 | 2023 | -53% | 1971 | |
| Song Sparrow | Passerellidae | 18 | 2023 | -60% | 1971 | |
| Red-eyed Vireo | Vireonidae | 17 | 2023 | -20% | 1971 | |
| American Crow | Corvidae | 16 | 2023 | -63% | 1971 | |
| Chipping Sparrow | Passerellidae | 13 | 2023 | -76% | 1971 | |
| Gray Catbird | Mimidae | 11 | 2023 | -12% | 1971 | |
| Blue Jay | Corvidae | 10 | 2023 | -44% | 1971 | |
| American Goldfinch | Fringillidae | 9 | 2023 | -77% | 1971 | |
| Yellow Warbler | Parulidae | 9 | 2023 | +12% | 1971 | |
| Mourning Dove | Columbidae | 8 | 2023 | +138% | 1971 | |
| Barn Swallow | Hirundinidae | 8 | 2023 | -84% | 1971 | |
| Mallard | Anatidae | 8 | 2021 | +267% | 1983 | |
| Northern House Wren | Troglodytidae | 7 | 2023 | -59% | 1971 | |
| Northern Cardinal | Cardinalidae | 6 | 2023 | +0% | 1971 | |
| House Finch | Fringillidae | 6 | 2022 | +44% | 1981 | |
| Bobolink | Icteridae | 5 | 2023 | +47% | 1971 | |
| Eastern Meadowlark | Icteridae | 5 | 2023 | -89% | 1971 | |
| Cedar Waxwing | Bombycillidae | 5 | 2023 | +159% | 1971 | |
| American Kestrel | Falconidae | 4 | 2022 | -29% | 1971 | |
| European Starling | Sturnidae | 4 | 2023 | -83% | 1971 | |
| Baltimore Oriole | Icteridae | 4 | 2023 | -33% | 1971 | |
| Field Sparrow | Passerellidae | 4 | 2023 | -76% | 1971 | |
| Eastern Towhee | Passerellidae | 4 | 2023 | -78% | 1971 | |
| Chestnut-sided Warbler | Parulidae | 4 | 2023 | +27% | 1971 | |
| Ovenbird | Parulidae | 4 | 2023 | +200% | 1971 | |
| Wild Turkey | Phasianidae | 4 | 2022 | +200% | 1989 | |
| Killdeer | Charadriidae | 3 | 2023 | -78% | 1971 | |
| Downy Woodpecker | Picidae | 3 | 2023 | +233% | 1973 | |
| Eastern Phoebe | Tyrannidae | 3 | 2023 | -66% | 1971 | |
| Eastern Wood-Pewee | Tyrannidae | 3 | 2023 | +20% | 1971 | |
| Tree Swallow | Hirundinidae | 3 | 2023 | +50% | 1972 | |
| Wood Thrush | Turdidae | 3 | 2023 | -86% | 1971 | |
| Veery | Turdidae | 3 | 2023 | -58% | 1971 | |
| Eastern Bluebird | Turdidae | 3 | 2023 | -81% | 1971 | |
| Red-bellied Woodpecker | Picidae | 3 | 2023 | +100% | 2002 | |
| Belted Kingfisher | Alcedinidae | 2 | 2021 | +0% | 1971 | |
| Yellow-bellied Sapsucker | Picidae | 2 | 2023 | -67% | 1971 | |
| Chimney Swift | Apodidae | 2 | 2023 | -71% | 1971 |
Source: USGS North American Breeding Bird Survey, retrieved 2026-05-22. A route is a sample, not a census.