BBS Route · Delaware · BCR 30
Frankford Bird Survey Route
A standard 50-stop Breeding Bird Survey route. 104 species recorded across 32 survey years, no longer active.
104Species Recorded
32Years Surveyed
1966–2012Span
8Observers
Bird Species Found on Delaware Frankford
Top 40 of 104 species by most recent count. Each links to its species trend.
| History | ||||||
|---|---|---|---|---|---|---|
| European Starling | Sturnidae | 236 | 2012 | +79% | 1968 | |
| Common Grackle | Icteridae | 164 | 2012 | +55% | 1968 | |
| Turkey Vulture | Cathartidae | 105 | 2012 | 12× | 1968 | |
| American Robin | Turdidae | 68 | 2012 | +91% | 1968 | |
| Mourning Dove | Columbidae | 43 | 2012 | +345% | 1968 | |
| Barn Swallow | Hirundinidae | 37 | 2012 | +86% | 1968 | |
| American Crow | Corvidae | 32 | 2012 | -65% | 1968 | |
| Indigo Bunting | Cardinalidae | 32 | 2012 | +119% | 1968 | |
| Chipping Sparrow | Passerellidae | 27 | 2012 | -7% | 1968 | |
| Purple Martin | Hirundinidae | 26 | 2012 | +145% | 1968 | |
| House Sparrow | Passeridae | 23 | 2012 | -84% | 1968 | |
| Carolina Wren | Troglodytidae | 23 | 2012 | +109% | 1968 | |
| Northern Cardinal | Cardinalidae | 21 | 2012 | -54% | 1968 | |
| Northern Mockingbird | Mimidae | 18 | 2012 | +185% | 1968 | |
| Horned Lark | Alaudidae | 17 | 2012 | +94% | 1968 | |
| Brown-headed Cowbird | Icteridae | 17 | 2012 | +172% | 1968 | |
| Blue Grosbeak | Cardinalidae | 17 | 2012 | +171% | 1969 | |
| Great Egret | Ardeidae | 15 | 1966 | n/a | n/a | |
| Tufted Titmouse | Paridae | 13 | 2012 | -51% | 1968 | |
| Red-eyed Vireo | Vireonidae | 10 | 2012 | -30% | 1968 | |
| Wood Thrush | Turdidae | 10 | 2012 | -52% | 1968 | |
| American Goldfinch | Fringillidae | 9 | 2012 | +375% | 1972 | |
| Common Yellowthroat | Parulidae | 8 | 2012 | -57% | 1968 | |
| Eastern Bluebird | Turdidae | 8 | 2012 | +180% | 1973 | |
| Ovenbird | Parulidae | 7 | 2012 | -20% | 1968 | |
| Blue Jay | Corvidae | 6 | 2012 | -43% | 1968 | |
| Carolina Chickadee | Paridae | 6 | 2012 | +39% | 1968 | |
| Blue-gray Gnatcatcher | Polioptilidae | 6 | 2008 | +60% | 1977 | |
| Cedar Waxwing | Bombycillidae | 6 | 2012 | +500% | 1997 | |
| Red-bellied Woodpecker | Picidae | 5 | 2012 | +77% | 1968 | |
| Orchard Oriole | Icteridae | 5 | 2012 | +83% | 1968 | |
| Yellow-throated Vireo | Vireonidae | 5 | 1991 | +40% | 1968 | |
| Glossy Ibis | Threskiornithidae | 5 | 2007 | n/a | n/a | |
| Great Crested Flycatcher | Tyrannidae | 4 | 2012 | +146% | 1968 | |
| Eastern Wood-Pewee | Tyrannidae | 4 | 2012 | +29% | 1968 | |
| Grasshopper Sparrow | Passerellidae | 4 | 2012 | +75% | 1968 | |
| Field Sparrow | Passerellidae | 4 | 2012 | -75% | 1968 | |
| Yellow Warbler | Parulidae | 4 | 2008 | +29% | 1973 | |
| Bald Eagle | Accipitridae | 4 | 2012 | +300% | 2007 | |
| Killdeer | Charadriidae | 3 | 2012 | +217% | 1968 |
Source: USGS North American Breeding Bird Survey, retrieved 2026-05-22. A route is a sample, not a census.