BBS Route · Pennsylvania · BCR 29
Shrewsbury Bird Survey Route
A standard 50-stop Breeding Bird Survey route. 93 species recorded across 32 survey years, still active.
93Species Recorded
32Years Surveyed
1991–2023Span
2Observers
Bird Species Found on Pennsylvania Shrewsbury
Top 40 of 93 species by most recent count. Each links to its species trend.
| History | ||||||
|---|---|---|---|---|---|---|
| Mourning Dove | Columbidae | 38 | 2023 | -49% | 1993 | |
| European Starling | Sturnidae | 37 | 2023 | -64% | 1993 | |
| Canada Goose | Anatidae | 37 | 2022 | +210% | 1995 | |
| American Crow | Corvidae | 28 | 2023 | -12% | 1993 | |
| Barn Swallow | Hirundinidae | 26 | 2023 | -38% | 1993 | |
| Chipping Sparrow | Passerellidae | 22 | 2023 | +29% | 1993 | |
| Gray Catbird | Mimidae | 22 | 2023 | -17% | 1993 | |
| American Robin | Turdidae | 22 | 2023 | -55% | 1993 | |
| Song Sparrow | Passerellidae | 21 | 2023 | +13% | 1993 | |
| Red-winged Blackbird | Icteridae | 18 | 2023 | -78% | 1993 | |
| Blue Jay | Corvidae | 17 | 2023 | -13% | 1993 | |
| Common Grackle | Icteridae | 17 | 2022 | -88% | 1993 | |
| Northern Mockingbird | Mimidae | 17 | 2023 | -44% | 1993 | |
| Northern Cardinal | Cardinalidae | 15 | 2023 | -49% | 1993 | |
| Red-bellied Woodpecker | Picidae | 11 | 2023 | -4% | 1993 | |
| Northern House Wren | Troglodytidae | 11 | 2023 | -53% | 1993 | |
| American Goldfinch | Fringillidae | 10 | 2023 | -26% | 1993 | |
| Indigo Bunting | Cardinalidae | 10 | 2023 | -71% | 1993 | |
| Field Sparrow | Passerellidae | 9 | 2023 | -40% | 1993 | |
| Carolina Wren | Troglodytidae | 9 | 2023 | -30% | 1993 | |
| Eastern Bluebird | Turdidae | 6 | 2023 | +13% | 1993 | |
| Turkey Vulture | Cathartidae | 6 | 2023 | +400% | 1997 | |
| Downy Woodpecker | Picidae | 5 | 2023 | +233% | 1996 | |
| Chimney Swift | Apodidae | 5 | 2023 | -76% | 1993 | |
| Fish Crow | Corvidae | 5 | 2023 | +43% | 1993 | |
| House Finch | Fringillidae | 5 | 2023 | -80% | 1993 | |
| Grasshopper Sparrow | Passerellidae | 5 | 2023 | +150% | 1993 | |
| Common Yellowthroat | Parulidae | 5 | 2023 | -23% | 1993 | |
| House Sparrow | Passeridae | 5 | 2023 | -94% | 1993 | |
| Great Blue Heron | Ardeidae | 4 | 2019 | +80% | 1996 | |
| Horned Lark | Alaudidae | 4 | 2023 | +367% | 1995 | |
| Baltimore Oriole | Icteridae | 4 | 2022 | -43% | 1993 | |
| Blue Grosbeak | Cardinalidae | 4 | 2017 | +20% | 1998 | |
| White-breasted Nuthatch | Sittidae | 4 | 2023 | +33% | 1994 | |
| Red-tailed Hawk | Accipitridae | 4 | 2022 | +50% | 1994 | |
| Green Heron | Ardeidae | 3 | 2012 | +67% | 1995 | |
| Rock Pigeon | Columbidae | 3 | 2022 | -79% | 1993 | |
| Eastern Phoebe | Tyrannidae | 3 | 2023 | -36% | 1993 | |
| Eastern Wood-Pewee | Tyrannidae | 3 | 2023 | -59% | 1993 | |
| Red-eyed Vireo | Vireonidae | 3 | 2023 | -11% | 1993 |
Source: USGS North American Breeding Bird Survey, retrieved 2026-05-22. A route is a sample, not a census.