BBS Route · Pennsylvania · BCR 28
Clear Spring Bird Survey Route
A standard 50-stop Breeding Bird Survey route. 113 species recorded across 53 survey years, still active.
113Species Recorded
53Years Surveyed
1966–2024Span
8Observers
Bird Species Found on Pennsylvania Clear Spring
Top 40 of 113 species by most recent count. Each links to its species trend.
| History | ||||||
|---|---|---|---|---|---|---|
| American Robin | Turdidae | 69 | 2024 | +10% | 1968 | |
| Northern Cardinal | Cardinalidae | 51 | 2024 | +293% | 1968 | |
| Red-eyed Vireo | Vireonidae | 39 | 2024 | +213% | 1968 | |
| Gray Catbird | Mimidae | 38 | 2024 | +127% | 1968 | |
| European Starling | Sturnidae | 30 | 2024 | -24% | 1968 | |
| Carolina Wren | Troglodytidae | 25 | 2024 | 11× | 1975 | |
| Barn Swallow | Hirundinidae | 23 | 2024 | +19% | 1968 | |
| Common Grackle | Icteridae | 21 | 2024 | -89% | 1968 | |
| Chipping Sparrow | Passerellidae | 21 | 2024 | +66% | 1968 | |
| Mourning Dove | Columbidae | 19 | 2024 | -2% | 1968 | |
| Wood Thrush | Turdidae | 19 | 2024 | +76% | 1968 | |
| Eastern Wood-Pewee | Tyrannidae | 18 | 2024 | +64% | 1968 | |
| American Goldfinch | Fringillidae | 18 | 2024 | -29% | 1968 | |
| Northern House Wren | Troglodytidae | 15 | 2024 | -34% | 1968 | |
| Ovenbird | Parulidae | 14 | 2024 | +140% | 1968 | |
| Tufted Titmouse | Paridae | 14 | 2024 | +62% | 1968 | |
| Red-winged Blackbird | Icteridae | 13 | 2024 | -81% | 1968 | |
| Carolina Chickadee | Paridae | 13 | 2024 | +271% | 1996 | |
| Blue Jay | Corvidae | 11 | 2024 | -31% | 1968 | |
| Song Sparrow | Passerellidae | 11 | 2024 | -29% | 1968 | |
| American Crow | Corvidae | 10 | 2024 | -43% | 1968 | |
| Brown-headed Cowbird | Icteridae | 10 | 2024 | +45% | 1968 | |
| Indigo Bunting | Cardinalidae | 10 | 2024 | +64% | 1968 | |
| House Sparrow | Passeridae | 9 | 2024 | -92% | 1968 | |
| House Finch | Fringillidae | 8 | 2024 | +52% | 1982 | |
| Field Sparrow | Passerellidae | 7 | 2024 | -29% | 1968 | |
| Eastern Bluebird | Turdidae | 7 | 2024 | +280% | 1989 | |
| Acadian Flycatcher | Tyrannidae | 6 | 2024 | +40% | 1968 | |
| Black-capped Chickadee | Paridae | 6 | 2015 | +0% | 1968 | |
| Red-bellied Woodpecker | Picidae | 6 | 2024 | +800% | 1972 | |
| Fish Crow | Corvidae | 6 | 2024 | +267% | 1972 | |
| Hooded Warbler | Parulidae | 6 | 2024 | +100% | 2007 | |
| Scarlet Tanager | Cardinalidae | 5 | 2024 | -30% | 1968 | |
| Northern Mockingbird | Mimidae | 5 | 2024 | -5% | 1968 | |
| White-breasted Nuthatch | Sittidae | 5 | 2024 | +100% | 1970 | |
| Pine Warbler | Parulidae | 5 | 2024 | +180% | 1995 | |
| Northern Bobwhite | Odontophoridae | 4 | 2000 | -81% | 1968 | |
| Downy Woodpecker | Picidae | 4 | 2024 | +100% | 1968 | |
| Chimney Swift | Apodidae | 4 | 2024 | -60% | 1968 | |
| Cedar Waxwing | Bombycillidae | 4 | 2024 | +157% | 1980 |
Source: USGS North American Breeding Bird Survey, retrieved 2026-05-22. A route is a sample, not a census.