BBS Route · Delaware · BCR 30
Millsboro Bird Survey Route
A standard 50-stop Breeding Bird Survey route. 78 species recorded across 6 survey years, still active.
78Species Recorded
6Years Surveyed
2017–2024Span
2Observers
Bird Species Found on Delaware Millsboro
Top 40 of 78 species by most recent count. Each links to its species trend.
| History | ||||||
|---|---|---|---|---|---|---|
| European Starling | Sturnidae | 261 | 2024 | +71% | 2021 | |
| Common Grackle | Icteridae | 139 | 2024 | -29% | 2021 | |
| Indigo Bunting | Cardinalidae | 52 | 2024 | -6% | 2021 | |
| Northern Cardinal | Cardinalidae | 43 | 2024 | +10% | 2021 | |
| Chipping Sparrow | Passerellidae | 41 | 2024 | -4% | 2021 | |
| Carolina Wren | Troglodytidae | 41 | 2024 | -23% | 2021 | |
| American Crow | Corvidae | 37 | 2024 | -7% | 2021 | |
| Mourning Dove | Columbidae | 35 | 2024 | -19% | 2021 | |
| Purple Martin | Hirundinidae | 33 | 2024 | -24% | 2021 | |
| Barn Swallow | Hirundinidae | 32 | 2024 | -21% | 2021 | |
| Tufted Titmouse | Paridae | 30 | 2024 | +1% | 2021 | |
| Blue Grosbeak | Cardinalidae | 27 | 2024 | -19% | 2021 | |
| Carolina Chickadee | Paridae | 23 | 2024 | -1% | 2021 | |
| Fish Crow | Corvidae | 21 | 2024 | +192% | 2021 | |
| American Robin | Turdidae | 20 | 2024 | -48% | 2021 | |
| Common Yellowthroat | Parulidae | 19 | 2024 | -28% | 2021 | |
| Turkey Vulture | Cathartidae | 18 | 2024 | +28% | 2021 | |
| Northern Mockingbird | Mimidae | 17 | 2024 | -19% | 2021 | |
| Pine Warbler | Parulidae | 16 | 2024 | +10% | 2021 | |
| Eastern Bluebird | Turdidae | 14 | 2024 | +191% | 2021 | |
| Red-eyed Vireo | Vireonidae | 13 | 2024 | -46% | 2021 | |
| Grasshopper Sparrow | Passerellidae | 12 | 2024 | +25% | 2021 | |
| Blue Jay | Corvidae | 11 | 2024 | -33% | 2021 | |
| Killdeer | Charadriidae | 10 | 2024 | -23% | 2021 | |
| White-eyed Vireo | Vireonidae | 10 | 2024 | +41% | 2021 | |
| Blue-gray Gnatcatcher | Polioptilidae | 10 | 2024 | -28% | 2021 | |
| Downy Woodpecker | Picidae | 9 | 2024 | +22% | 2021 | |
| American Goldfinch | Fringillidae | 9 | 2024 | -30% | 2021 | |
| Ovenbird | Parulidae | 9 | 2024 | -43% | 2021 | |
| Red-bellied Woodpecker | Picidae | 7 | 2024 | +14% | 2021 | |
| Great Crested Flycatcher | Tyrannidae | 7 | 2024 | -27% | 2021 | |
| Acadian Flycatcher | Tyrannidae | 7 | 2024 | -24% | 2021 | |
| Field Sparrow | Passerellidae | 7 | 2024 | -49% | 2021 | |
| Laughing Gull | Laridae | 6 | 2022 | +500% | 2017 | |
| Pileated Woodpecker | Picidae | 6 | 2024 | +40% | 2021 | |
| Brown-headed Cowbird | Icteridae | 6 | 2024 | -38% | 2021 | |
| House Finch | Fringillidae | 6 | 2022 | +100% | 2017 | |
| Wild Turkey | Phasianidae | 5 | 2024 | +400% | 2017 | |
| Black Vulture | Cathartidae | 5 | 2021 | +0% | 2017 | |
| Bald Eagle | Accipitridae | 5 | 2024 | +250% | 2019 |
Source: USGS North American Breeding Bird Survey, retrieved 2026-05-22. A route is a sample, not a census.