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Loudoun Co. (VA) 2009-2013 (data entry closed)

All Species Summary

Species Summary
73 blocks with records.
120 total species: 104 CO, 13 PR, 3 PO , (plus 143 OB)

last updated:
Fri, Oct 24 at 03:51 AM (9hrs ago).
Species List
sort: taxonomic / alpha sort sort
Species Best Evidence Blocks PO Blocks PR Blocks CO TOTAL
Greater White-fronted Goose Observed OB 0 0 0 2 blocks
Snow Goose Observed OB 0 0 0 13 blocks
Cackling Goose Observed OB 0 0 0 4 blocks
Canada Goose Confirmed CO 5 2 56 69 blocks
Brant Observed OB 0 0 0 1 blocks
Mute Swan Observed OB 0 0 0 5 blocks
Trumpeter Swan Observed OB 0 0 0 3 blocks
Tundra Swan Observed OB 0 0 0 21 blocks
Wood Duck Confirmed CO 10 7 22 50 blocks
Gadwall Observed OB 0 0 0 16 blocks
American Wigeon Observed OB 0 0 0 14 blocks
American Black Duck Observed OB 0 0 0 29 blocks
Mallard Confirmed CO 14 11 22 59 blocks
Blue-winged Teal Observed OB 0 0 0 15 blocks
Northern Shoveler Observed OB 0 0 0 7 blocks
Northern Pintail Observed OB 0 0 0 5 blocks
Green-winged Teal Observed OB 0 0 0 18 blocks
Canvasback Observed OB 0 0 0 5 blocks
Redhead Observed OB 0 0 0 12 blocks
Ring-necked Duck Observed OB 0 0 0 44 blocks
Greater Scaup Observed OB 0 0 0 3 blocks
Lesser Scaup Observed OB 0 0 0 14 blocks
Surf Scoter Observed OB 0 0 0 1 blocks
White-winged Scoter Observed OB 0 0 0 3 blocks
Long-tailed Duck Observed OB 0 0 0 4 blocks
Bufflehead Observed OB 0 0 0 22 blocks
Common Goldeneye Observed OB 0 0 0 6 blocks
Hooded Merganser Confirmed CO 0 0 1 35 blocks
Common Merganser Observed OB 0 0 0 18 blocks
Red-breasted Merganser Observed OB 0 0 0 12 blocks
Ruddy Duck Observed OB 0 0 0 21 blocks
Wild Turkey Confirmed CO 22 8 29 65 blocks
Northern Bobwhite Confirmed CO 8 10 1 19 blocks
Red-throated Loon Observed OB 0 0 0 1 blocks
Common Loon Observed OB 0 0 0 11 blocks
Pied-billed Grebe Possible PO 1 0 0 22 blocks
Horned Grebe Observed OB 0 0 0 8 blocks
Red-necked Grebe Observed OB 0 0 0 2 blocks
Double-crested Cormorant Observed OB 0 0 0 31 blocks
American Bittern Observed OB 0 0 0 6 blocks
Great Blue Heron Confirmed CO 0 0 6 67 blocks
Great Egret Observed OB 0 0 0 34 blocks
Snowy Egret Observed OB 0 0 0 3 blocks
Little Blue Heron Observed OB 0 0 0 5 blocks
Tricolored Heron Observed OB 0 0 0 1 blocks
Cattle Egret Observed OB 0 0 0 1 blocks
Green Heron Confirmed CO 32 10 18 66 blocks
Black-crowned Night-Heron Observed OB 0 0 0 5 blocks
Yellow-crowned Night-Heron Observed OB 0 0 0 1 blocks
White Ibis Observed OB 0 0 0 2 blocks
Glossy Ibis Observed OB 0 0 0 1 blocks
Black Vulture Confirmed CO 43 10 8 71 blocks
Turkey Vulture Confirmed CO 51 13 6 73 blocks
Osprey Confirmed CO 0 0 1 41 blocks
Swallow-tailed Kite Observed OB 0 0 0 1 blocks
Mississippi Kite Observed OB 0 0 0 2 blocks
Bald Eagle Confirmed CO 0 0 7 59 blocks
Northern Harrier Observed OB 0 0 0 40 blocks
Sharp-shinned Hawk Possible PO 8 0 0 47 blocks
Cooper's Hawk Confirmed CO 33 6 7 63 blocks
Northern Goshawk Observed OB 0 0 0 1 blocks
Red-shouldered Hawk Confirmed CO 20 10 39 71 blocks
Broad-winged Hawk Probable PR 7 1 0 34 blocks
Red-tailed Hawk Confirmed CO 32 9 24 70 blocks
Rough-legged Hawk Observed OB 0 0 0 5 blocks
Golden Eagle Observed OB 0 0 0 6 blocks
American Kestrel Confirmed CO 14 9 12 57 blocks
Merlin Observed OB 0 0 0 17 blocks
Peregrine Falcon Observed OB 0 0 0 4 blocks
Black Rail Observed OB 0 0 0 1 blocks
Virginia Rail Probable PR 0 2 0 3 blocks
Sora Observed OB 0 0 0 2 blocks
Common Gallinule Observed OB 0 0 0 3 blocks
American Coot Observed OB 0 0 0 9 blocks
Sandhill Crane Observed OB 0 0 0 4 blocks
Black-bellied Plover Observed OB 0 0 0 1 blocks
American Golden-Plover Observed OB 0 0 0 1 blocks
Semipalmated Plover Observed OB 0 0 0 4 blocks
Killdeer Confirmed CO 27 6 26 63 blocks
American Avocet Observed OB 0 0 0 1 blocks
Greater Yellowlegs Observed OB 0 0 0 10 blocks
Lesser Yellowlegs Observed OB 0 0 0 9 blocks
Solitary Sandpiper Observed OB 0 0 0 33 blocks
Spotted Sandpiper Observed OB 0 0 0 27 blocks
Semipalmated Sandpiper Observed OB 0 0 0 7 blocks
Western Sandpiper Observed OB 0 0 0 1 blocks
Least Sandpiper Observed OB 0 0 0 9 blocks
White-rumped Sandpiper Observed OB 0 0 0 1 blocks
Pectoral Sandpiper Observed OB 0 0 0 4 blocks
Stilt Sandpiper Observed OB 0 0 0 1 blocks
Short-billed Dowitcher Observed OB 0 0 0 1 blocks
Long-billed Dowitcher Observed OB 0 0 0 1 blocks
Wilson's Snipe Observed OB 0 0 0 11 blocks
American Woodcock Confirmed CO 2 7 1 17 blocks
Red Phalarope Observed OB 0 0 0 1 blocks
Bonaparte's Gull Observed OB 0 0 0 5 blocks
Ring-billed Gull Observed OB 0 0 0 37 blocks
Herring Gull Observed OB 0 0 0 9 blocks
Lesser Black-backed Gull Observed OB 0 0 0 1 blocks
Great Black-backed Gull Observed OB 0 0 0 2 blocks
Caspian Tern Observed OB 0 0 0 2 blocks
Common Tern Observed OB 0 0 0 1 blocks
Rock Pigeon Confirmed CO 39 19 9 70 blocks
Mourning Dove Confirmed CO 11 26 34 72 blocks
Black-billed Cuckoo Probable PR 3 1 0 10 blocks
Yellow-billed Cuckoo Confirmed CO 26 28 8 69 blocks
Barn Owl Confirmed CO 3 4 3 16 blocks
Eastern Screech-Owl Confirmed CO 7 3 2 24 blocks
Great Horned Owl Confirmed CO 17 7 6 31 blocks
Snowy Owl Observed OB 0 0 0 3 blocks
Barred Owl Confirmed CO 14 18 15 52 blocks
Long-eared Owl Observed OB 0 0 0 1 blocks
Short-eared Owl Observed OB 0 0 0 3 blocks
Northern Saw-whet Owl Observed OB 0 0 0 1 blocks
Common Nighthawk Probable PR 1 1 0 18 blocks
unid. Mexican / Eastern Whip-poor-will Probable PR 0 2 0 4 blocks
Chimney Swift Confirmed CO 46 17 6 70 blocks
Ruby-throated Hummingbird Confirmed CO 27 20 13 66 blocks
unid. Rufous Hummingbird / Allen's Hummingbird Observed OB 0 0 0 1 blocks
Belted Kingfisher Confirmed CO 26 12 13 63 blocks
Red-headed Woodpecker Confirmed CO 12 6 25 53 blocks
Red-bellied Woodpecker Confirmed CO 4 17 51 73 blocks
Yellow-bellied Sapsucker Observed OB 0 0 0 66 blocks
Downy Woodpecker Confirmed CO 7 24 42 73 blocks
Hairy Woodpecker Confirmed CO 36 11 14 70 blocks
(unid. Red/Yellow Shafted) Northern Flicker Confirmed CO 20 20 25 69 blocks
Pileated Woodpecker Confirmed CO 23 34 12 72 blocks
Olive-sided Flycatcher Observed OB 0 0 0 6 blocks
Eastern Wood-Pewee Confirmed CO 10 42 19 72 blocks
Yellow-bellied Flycatcher Observed OB 0 0 0 4 blocks
Acadian Flycatcher Confirmed CO 12 39 12 66 blocks
Alder Flycatcher Observed OB 0 0 0 2 blocks
Willow Flycatcher Confirmed CO 12 16 6 41 blocks
Least Flycatcher Observed OB 0 0 0 7 blocks
Eastern Phoebe Confirmed CO 3 5 62 72 blocks
Great Crested Flycatcher Confirmed CO 11 33 29 73 blocks
Western Kingbird Observed OB 0 0 0 2 blocks
Eastern Kingbird Confirmed CO 6 21 41 70 blocks
Scissor-tailed Flycatcher Observed OB 0 0 0 2 blocks
Loggerhead Shrike Confirmed CO 0 0 1 7 blocks
Northern Shrike Observed OB 0 0 0 1 blocks
White-eyed Vireo Confirmed CO 15 21 9 53 blocks
Yellow-throated Vireo Confirmed CO 11 16 4 40 blocks
Blue-headed Vireo Observed OB 0 0 0 29 blocks
Warbling Vireo Confirmed CO 15 7 2 38 blocks
Philadelphia Vireo Observed OB 0 0 0 5 blocks
Red-eyed Vireo Confirmed CO 12 41 14 71 blocks
Blue Jay Confirmed CO 16 20 34 73 blocks
American Crow Confirmed CO 13 23 36 72 blocks
Fish Crow Confirmed CO 34 10 21 69 blocks
Common Raven Confirmed CO 27 7 7 63 blocks
Horned Lark Probable PR 1 3 0 13 blocks
Purple Martin Confirmed CO 7 0 28 50 blocks
Tree Swallow Confirmed CO 5 4 52 65 blocks
Northern Rough-winged Swallow Confirmed CO 12 6 27 58 blocks
Bank Swallow Observed OB 0 0 0 19 blocks
Cliff Swallow Confirmed CO 0 0 2 9 blocks
Barn Swallow Confirmed CO 9 5 55 70 blocks
Carolina Chickadee Confirmed CO 4 10 58 73 blocks
Black-capped Chickadee Observed OB 0 0 0 5 blocks
Tufted Titmouse Confirmed CO 3 10 59 73 blocks
Red-breasted Nuthatch Observed OB 0 0 0 40 blocks
White-breasted Nuthatch Confirmed CO 14 28 30 72 blocks
Brown-headed Nuthatch Observed OB 0 0 0 1 blocks
Brown Creeper Possible PO 1 0 0 48 blocks
Carolina Wren Confirmed CO 2 24 47 73 blocks
House Wren Confirmed CO 11 15 39 68 blocks
unid. Pacific Wren / Winter Wren Observed OB 0 0 0 33 blocks
Marsh Wren Probable PR 0 1 0 1 blocks
Golden-crowned Kinglet Observed OB 0 0 0 53 blocks
Ruby-crowned Kinglet Observed OB 0 0 0 58 blocks
Blue-gray Gnatcatcher Confirmed CO 15 14 40 70 blocks
Eastern Bluebird Confirmed CO 0 1 69 70 blocks
Veery Observed OB 0 0 0 8 blocks
Gray-cheeked Thrush Observed OB 0 0 0 10 blocks
Swainson's Thrush Observed OB 0 0 0 17 blocks
Hermit Thrush Observed OB 0 0 0 39 blocks
Wood Thrush Confirmed CO 10 39 14 67 blocks
American Robin Confirmed CO 2 7 63 72 blocks
Gray Catbird Confirmed CO 6 13 53 73 blocks
Northern Mockingbird Confirmed CO 4 11 56 71 blocks
Brown Thrasher Confirmed CO 9 16 44 70 blocks
European Starling Confirmed CO 6 3 61 71 blocks
American Pipit Observed OB 0 0 0 11 blocks
Cedar Waxwing Confirmed CO 20 11 32 73 blocks
Blue-winged Warbler Confirmed CO 2 1 1 13 blocks
Tennessee Warbler Observed OB 0 0 0 13 blocks
Orange-crowned Warbler Observed OB 0 0 0 5 blocks
Nashville Warbler Observed OB 0 0 0 19 blocks
Northern Parula Probable PR 7 27 0 47 blocks
Yellow Warbler Confirmed CO 14 16 4 46 blocks
Chestnut-sided Warbler Observed OB 0 0 0 31 blocks
Magnolia Warbler Observed OB 0 0 0 38 blocks
Cape May Warbler Observed OB 0 0 0 15 blocks
Black-throated Blue Warbler Observed OB 0 0 0 27 blocks
(unid. Myrtle/Audubon's) Yellow-rumped Warbler Observed OB 0 0 0 64 blocks
Black-throated Green Warbler Observed OB 0 0 0 37 blocks
Blackburnian Warbler Observed OB 0 0 0 17 blocks
Yellow-throated Warbler Probable PR 2 2 0 7 blocks
Pine Warbler Probable PR 8 4 0 25 blocks
Prairie Warbler Confirmed CO 7 23 6 42 blocks
Palm Warbler Observed OB 0 0 0 38 blocks
Bay-breasted Warbler Observed OB 0 0 0 8 blocks
Blackpoll Warbler Observed OB 0 0 0 36 blocks
Cerulean Warbler Probable PR 4 3 0 12 blocks
Black-and-white Warbler Confirmed CO 9 4 1 44 blocks
American Redstart Confirmed CO 2 11 4 51 blocks
Prothonotary Warbler Confirmed CO 4 3 3 13 blocks
Worm-eating Warbler Confirmed CO 4 4 6 26 blocks
Swainson's Warbler Observed OB 0 0 0 1 blocks
Ovenbird Confirmed CO 9 25 5 48 blocks
Northern Waterthrush Observed OB 0 0 0 11 blocks
Louisiana Waterthrush Confirmed CO 14 13 6 37 blocks
Kentucky Warbler Confirmed CO 3 5 5 18 blocks
Connecticut Warbler Observed OB 0 0 0 4 blocks
Mourning Warbler Observed OB 0 0 0 1 blocks
Common Yellowthroat Confirmed CO 12 33 21 70 blocks
Hooded Warbler Confirmed CO 4 4 1 16 blocks
Wilson's Warbler Observed OB 0 0 0 6 blocks
Canada Warbler Observed OB 0 0 0 10 blocks
Yellow-breasted Chat Confirmed CO 16 18 5 39 blocks
Summer Tanager Probable PR 0 1 0 4 blocks
Scarlet Tanager Confirmed CO 17 36 8 65 blocks
Eastern Towhee Confirmed CO 7 42 23 73 blocks
American Tree Sparrow Observed OB 0 0 0 25 blocks
Chipping Sparrow Confirmed CO 4 11 57 73 blocks
Clay-colored Sparrow Observed OB 0 0 0 2 blocks
Field Sparrow Confirmed CO 7 27 36 71 blocks
Vesper Sparrow Confirmed CO 4 3 2 15 blocks
Savannah Sparrow Confirmed CO 4 3 2 30 blocks
Grasshopper Sparrow Confirmed CO 9 26 21 59 blocks
Fox Sparrow Observed OB 0 0 0 29 blocks
Song Sparrow Confirmed CO 8 24 37 70 blocks
Lincoln's Sparrow Observed OB 0 0 0 12 blocks
Swamp Sparrow Confirmed CO 0 1 1 41 blocks
White-throated Sparrow Observed OB 0 0 0 71 blocks
White-crowned Sparrow Observed OB 0 0 0 40 blocks
(unid. race) Dark-eyed Junco Observed OB 0 0 0 71 blocks
Lapland Longspur Observed OB 0 0 0 1 blocks
Snow Bunting Observed OB 0 0 0 2 blocks
Northern Cardinal Confirmed CO 1 14 58 73 blocks
Rose-breasted Grosbeak Probable PR 2 2 0 25 blocks
Blue Grosbeak Confirmed CO 20 13 17 54 blocks
Indigo Bunting Confirmed CO 5 32 35 72 blocks
Dickcissel Confirmed CO 1 4 2 8 blocks
Bobolink Confirmed CO 0 2 4 16 blocks
Red-winged Blackbird Confirmed CO 2 8 57 68 blocks
Eastern Meadowlark Confirmed CO 13 22 22 59 blocks
Yellow-headed Blackbird Observed OB 0 0 0 1 blocks
Rusty Blackbird Observed OB 0 0 0 17 blocks
Brewer's Blackbird Observed OB 0 0 0 2 blocks
Common Grackle Confirmed CO 12 8 50 71 blocks
Brown-headed Cowbird Confirmed CO 14 26 29 70 blocks
Orchard Oriole Confirmed CO 13 16 30 64 blocks
Baltimore Oriole Confirmed CO 12 24 20 62 blocks
Purple Finch Observed OB 0 0 0 34 blocks
House Finch Confirmed CO 8 18 35 66 blocks
Red Crossbill Observed OB 0 0 0 1 blocks
White-winged Crossbill Observed OB 0 0 0 1 blocks
Common Redpoll Observed OB 0 0 0 4 blocks
Pine Siskin Observed OB 0 0 0 24 blocks
American Goldfinch Confirmed CO 8 39 25 73 blocks
House Sparrow Confirmed CO 4 6 58 69 blocks
 
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Contact: mwimer@usgs.gov

Last updated: Site - May 2014; Content - various, depending on atlas.
Page generated on: 24-Oct-2014