BBS Route · Delaware · BCR 30
Dover Bird Survey Route
A standard 50-stop Breeding Bird Survey route. 105 species recorded across 14 survey years, no longer active.
105Species Recorded
14Years Surveyed
1966–1987Span
3Observers
Bird Species Found on Delaware Dover
Top 40 of 105 species by most recent count. Each links to its species trend.
| History | ||||||
|---|---|---|---|---|---|---|
| Common Grackle | Icteridae | 200 | 1987 | +45% | 1968 | |
| European Starling | Sturnidae | 84 | 1987 | -8% | 1968 | |
| Barn Swallow | Hirundinidae | 38 | 1987 | +67% | 1968 | |
| House Sparrow | Passeridae | 38 | 1987 | -28% | 1968 | |
| American Robin | Turdidae | 37 | 1987 | +41% | 1968 | |
| Red-winged Blackbird | Icteridae | 34 | 1987 | -27% | 1968 | |
| Mourning Dove | Columbidae | 33 | 1987 | +30% | 1968 | |
| Chimney Swift | Apodidae | 23 | 1987 | +19% | 1968 | |
| Purple Martin | Hirundinidae | 22 | 1987 | +50% | 1968 | |
| Northern Cardinal | Cardinalidae | 18 | 1987 | -44% | 1968 | |
| Northern Bobwhite | Odontophoridae | 17 | 1987 | -42% | 1968 | |
| Laughing Gull | Laridae | 17 | 1987 | -12% | 1975 | |
| Song Sparrow | Passerellidae | 15 | 1987 | -31% | 1968 | |
| Blue Jay | Corvidae | 12 | 1987 | +69% | 1968 | |
| Fish Crow | Corvidae | 12 | 1987 | +0% | 1968 | |
| Eastern Kingbird | Tyrannidae | 10 | 1987 | +250% | 1968 | |
| House Finch | Fringillidae | 10 | 1987 | +900% | 1985 | |
| Rock Pigeon | Columbidae | 9 | 1987 | +3% | 1969 | |
| Common Yellowthroat | Parulidae | 9 | 1987 | -25% | 1968 | |
| Northern Mockingbird | Mimidae | 9 | 1987 | -59% | 1968 | |
| Indigo Bunting | Cardinalidae | 8 | 1987 | -24% | 1968 | |
| Carolina Chickadee | Paridae | 6 | 1987 | +38% | 1968 | |
| Black Skimmer | Laridae | 6 | 1973 | -57% | 1968 | |
| Mallard | Anatidae | 5 | 1987 | -25% | 1972 | |
| Horned Lark | Alaudidae | 5 | 1986 | -38% | 1968 | |
| Carolina Wren | Troglodytidae | 5 | 1987 | +44% | 1973 | |
| Wood Thrush | Turdidae | 5 | 1987 | +150% | 1968 | |
| Red-bellied Woodpecker | Picidae | 4 | 1987 | -39% | 1968 | |
| Chipping Sparrow | Passerellidae | 4 | 1987 | -54% | 1968 | |
| Blue Grosbeak | Cardinalidae | 4 | 1987 | -61% | 1968 | |
| Red-eyed Vireo | Vireonidae | 4 | 1987 | +50% | 1968 | |
| Gray Catbird | Mimidae | 4 | 1987 | +6% | 1968 | |
| Turkey Vulture | Cathartidae | 4 | 1987 | +300% | 1973 | |
| Cedar Waxwing | Bombycillidae | 4 | 1986 | n/a | n/a | |
| American Crow | Corvidae | 3 | 1987 | -58% | 1968 | |
| Brown-headed Cowbird | Icteridae | 3 | 1987 | +120% | 1968 | |
| Eastern Meadowlark | Icteridae | 3 | 1987 | -72% | 1968 | |
| American Goldfinch | Fringillidae | 3 | 1987 | -40% | 1968 | |
| Seaside Sparrow | Passerellidae | 3 | 1985 | +250% | 1974 | |
| Scarlet Tanager | Cardinalidae | 3 | 1987 | +25% | 1972 |
Source: USGS North American Breeding Bird Survey, retrieved 2026-05-22. A route is a sample, not a census.