Results
The table below lists all the birds found on the Delaware Swamp Sparrow Survey (2000-2009) and the percent of survey points on which they were found.
Most of the birds listed breed in Delaware but a few are late migrants (e.g. Blackpoll Warbler).
| Bird | Percent of Points |
|---|---|
| Snow Goose | 0.07 % |
| Canada Goose | 1.17 % |
| Mute Swan | 0.51 % |
| Wood Duck | 1.46 % |
| Gadwall | 0.80 % |
| American Black Duck | 1.09 % |
| Mallard | 4.15 % |
| Blue-winged Teal | 0.07 % |
| Ruddy Duck | 0.15 % |
| Ring-necked Pheasant | 0.66 % |
| Northern Bobwhite | 6.41 % |
| Pied-billed Grebe | 0.15 % |
| Double-crested Cormorant | 0.58 % |
| American Bittern | 0.22 % |
| Least Bittern | 0.66 % |
| Great Blue Heron | 5.39 % |
| Great Egret | 6.26 % |
| Snowy Egret | 3.50 % |
| Little Blue Heron | 0.44 % |
| Cattle Egret | 0.29 % |
| Green Heron | 1.60 % |
| Black-crowned Night-Heron | 0.95 % |
| Yellow-crowned Night-Heron | 0.29 % |
| Glossy Ibis | 2.69 % |
| Turkey Vulture | 0.95 % |
| Osprey | 2.48 % |
| Bald Eagle | 0.22 % |
| Northern Harrier | 0.22 % |
| Red-tailed Hawk | 0.51 % |
| Peregrine Falcon | 0.15 % |
| Clapper Rail | 7.94 % |
| King Rail | 0.44 % |
| Virginia Rail | 2.04 % |
| Sora | 0.15 % |
| Common Moorhen | 0.66 % |
| Black-bellied Plover | 0.15 % |
| Killdeer | 4.01 % |
| Black-necked Stilt | 1.53 % |
| American Avocet | 0.15 % |
| Spotted Sandpiper | 0.15 % |
| Greater Yellowlegs | 0.58 % |
| Willet | 22.87 % |
| Lesser Yellowlegs | 0.29 % |
| Ruddy Turnstone | 0.07 % |
| Red Knot | 0.07 % |
| Semipalmated Sandpiper | 0.44 % |
| Least Sandpiper | 0.29 % |
| Short-billed Dowitcher | 0.15 % |
| Laughing Gull | 4.59 % |
| Ring-billed Gull | 1.68 % |
| Herring Gull | 2.26 % |
| Iceland Gull | 0.07 % |
| Great Black-backed Gull | 2.11 % |
| Caspian Tern | 0.07 % |
| Roseate Tern | 0.07 % |
| Common Tern | 0.22 % |
| Forster's Tern | 1.38 % |
| Black Skimmer | 0.66 % |
| Rock Pigeon | 0.07 % |
| Mourning Dove | 17.92 % |
| Yellow-billed Cuckoo | 1.09 % |
| Black-billed Cuckoo | 0.07 % |
| Great Horned Owl | 0.22 % |
| Chimney Swift | 0.15 % |
| Ruby-throated Hummingbird | 1.38 % |
| Belted Kingfisher | 0.07 % |
| Red-bellied Woodpecker | 1.38 % |
| Downy Woodpecker | 0.95 % |
| Hairy Woodpecker | 0.36 % |
| Northern Flicker | 3.86 % |
| Pileated Woodpecker | 0.07 % |
| Eastern Wood-Pewee | 4.01 % |
| Acadian Flycatcher | 0.51 % |
| Willow Flycatcher | 11.73 % |
| Eastern Phoebe | 0.44 % |
| Great Crested Flycatcher | 3.50 % |
| Eastern Kingbird | 9.69 % |
| White-eyed Vireo | 5.32 % |
| Warbling Vireo | 0.15 % |
| Red-eyed Vireo | 2.26 % |
| Blue Jay | 2.04 % |
| American Crow | 1.46 % |
| Fish Crow | 3.28 % |
| Horned Lark | 0.15 % |
| Purple Martin | 4.37 % |
| Tree Swallow | 6.63 % |
| Northern Rough-winged Swallow | 0.07 % |
| Bank Swallow | 0.15 % |
| Barn Swallow | 13.62 % |
| Carolina Chickadee | 2.04 % |
| Tufted Titmouse | 1.46 % |
| Brown-headed Nuthatch | 0.29 % |
| Carolina Wren | 9.98 % |
| House Wren | 8.38 % |
| Marsh Wren | 57.32 % |
| Blue-gray Gnatcatcher | 1.31 % |
| Eastern Bluebird | 0.22 % |
| Wood Thrush | 2.55 % |
| American Robin | 14.71 % |
| Gray Catbird | 20.83 % |
| Northern Mockingbird | 9.18 % |
| Brown Thrasher | 2.04 % |
| European Starling | 6.12 % |
| Cedar Waxwing | 6.48 % |
| Yellow Warbler | 21.70 % |
| Magnolia Warbler | 0.07 % |
| Yellow-throated Warbler | 0.51 % |
| Pine Warbler | 2.11 % |
| Blackpoll Warbler | 0.29 % |
| Black-and-white Warbler | 0.07 % |
| Prothonotary Warbler | 0.15 % |
| Ovenbird | 1.24 % |
| Common Yellowthroat | 56.88 % |
| Yellow-breasted Chat | 2.84 % |
| Summer Tanager | 0.07 % |
| Scarlet Tanager | 0.66 % |
| Eastern Towhee | 4.30 % |
| Chipping Sparrow | 2.40 % |
| Field Sparrow | 0.51 % |
| Saltmarsh Sparrow | 1.02 % |
| Seaside Sparrow | 24.98 % |
| Song Sparrow | 18.43 % |
| Swamp Sparrow | 37.29 % |
| Northern Cardinal | 14.86 % |
| Blue Grosbeak | 5.61 % |
| Indigo Bunting | 8.74 % |
| Bobolink | 0.07 % |
| Red-winged Blackbird | 92.21 % |
| Eastern Meadowlark | 0.58 % |
| Common Grackle | 27.39 % |
| Boat-tailed Grackle | 1.17 % |
| Brown-headed Cowbird | 2.84 % |
| Orchard Oriole | 4.66 % |
| Baltimore Oriole | 0.22 % |
| House Finch | 4.73 % |
| American Goldfinch | 11.73 % |
| House Sparrow | 2.11 % |
