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

Species Info

Species Information

currently sorted by: species, alphabetic

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Species Alpha Code* Safe date start** Safe date end Habitat
  (unid. Myrtle/Audubon's) Yellow-rumped Warbler  YRWA / / Coniferous and mixed coniferous/deciduous woodlands, wood margins 
  (unid. race) Dark-eyed Junco  DEJU / / Edges of northern mixed forests 
  (unid. Red/Yellow Shafted) Northern Flicker  NOFL5 / 10 8 / 25Open woods, scattered trees, edges 
  Acadian Flycatcher  ACFL5 / 25 8 / 5Moist woods, bottomlands  
  Alder Flycatcher  ALFL / / Wet thickets (alder, maple, and birch), wood margins, hedgerows, scrub 
  American Avocet  AMAV / / Shallow fresh and saltwater wetlands 
  American Bittern  AMBI / / Marshes 
  American Black Duck  ABDU / / High ground near water, often woods 
  American Coot  AMCO / / Marshes with open water 
  American Crow  AMCR5 / 1 8 / 31Open areas, edges, farms, parks 
  American Golden-Plover  AMGP / / Prairie, pastures, farmland, golf courses, airports 
  American Goldfinch  AMGO6 / 10 9 / 15Brushy fields, edges, hedgerows 
  American Kestrel  AMKE5 / 20 7 / 31Open country, scattered trees, edge 
  American Pipit  AMPI / / Muddy or recently plowed fields, lake shores, river sandbars, grasslands 
  American Redstart  AMRE6 / 10 7 / 20Moist, deciduous forest 
  American Robin  AMRO5 / 1 8 / 31Everywhere, except very urban areas 
  American Tree Sparrow  ATSP / / Fields, marshes, gardens, open forests 
  American Wigeon  AMWI / / Marshes, reservoirs, rivers, ponds 
  American Woodcock  AMWO4 / 15 9 / 10Forest edges, shrubby areas 
  Baird's Sandpiper  BASA / / Mudflats, grassy marshes, dry grassy areas near lakes and ponds 
  Bald Eagle  BAEA4 / 15 8 / 5Tall trees near lakes, marshes, rivers 
  Baltimore Oriole  BAOR6 / 1 7 / 25Shade trees, open deciduous woods 
  Bank Swallow  BANS5 / 25 6 / 25Riverbanks, creeks, lakes, ponds 
  Barn Owl  BANO5 / 1 9 / 30Abandoned and agricultural fields, open grassland, wood margins 
  Barn Swallow  BARS5 / 25 6 / 25Variety of habitats with open foraging areas, agricultural areas, urban areas 
  Barred Owl  BADO1 / 15 8 / 31Bottomlands, swamps, moist woods 
  Bay-breasted Warbler  BBWA / / Variety of forest types, generally remains in the canopy 
  Belted Kingfisher  BEKI4 / 10 7 / 20Along streams, or lakes with banks 
  Bicknell's Thrush  BITH / / Mountainous forests and secondary woodlands 
  Black Rail  BLRA / / Marshes, wet meadows, floodplains 
  Black Scoter  BLSC / / Reservoirs, rivers, ponds 
  Black Tern  BLTE / / Reservoirs, rivers, lakes, ponds, marshes 
  Black Vulture  BLVU5 / 1 8 / 1Woods, cliffs, caves, buildings 
  Black-and-white Warbler  BAWW5 / 15 7 / 25Extensive deciduous or mixed woods 
  Black-bellied Plover  BBPL / / Flooded pastures, agricultural areas 
  Black-billed Cuckoo  BBCU / / Deciduous forests, wood margins, hedgerows, scrub 
  Black-capped Chickadee  BCCH / / Mixed deciduous-coniferous woodlands, wood margins, suburban areas, parks 
  Black-crowned Night-Heron  BCNH / / Marshes, reservoirs, rivers, ponds 
  Black-throated Blue Warbler  BTBW / / Mixed woods with heavy understory 
  Black-throated Green Warbler  BTNW / / Coniferous or mixed woods 
  Blackburnian Warbler  BLBW / / Coniferous or mixed woods 
  Blackpoll Warbler  BLPW / / Variety of forest, woodland, scrub, and brushy habitats 
  Blue Grosbeak  BLGR5 / 25 8 / 15Thickets, hedgerows, and edges 
  Blue Jay  BLJA6 / 10 8 / 15Variety of woodland habitats, suburbs 
  Blue-gray Gnatcatcher  BGGN5 / 15 7 / 31Variety of deciduous wooded habitats, especially near water  
  Blue-headed Vireo  BHVI / / Coniferous or mixed woodlands 
  Blue-winged Teal  BWTE / / High ground near water 
  Blue-winged Warbler  BWWA5 / 25 7 / 20Brushy fields, wood margins 
  Bobolink  BOBO6 / 15 7 / 10Fields, meadows, pastures 
  Bonaparte's Gull  BOGU / / Lakes, rivers, marshes 
  Brant  BRAN / / Marshes 
  Brewer's Blackbird  BRBL / / Farmland, open fields, parks, urban areas 
  Broad-winged Hawk  BWHA6 / 5 8 / 10Hilly woodlands 
  Brown Creeper  BRCR / / Coniferous and mixed coniferous/deciduous forests 
  Brown Thrasher  BRTH5 / 15 8 / 31Dense thickets, shrubs, hedgerows 
  Brown-headed Cowbird  BHCO5 / 1 7 / 10Everywhere, except urban areas 
  Brown-headed Nuthatch  BHNU / / Pine forests, especially open mature forests with periodic fires 
  Buff-breasted Sandpiper  BBSA / / Dry grasslands (usually short grass), pastures, plowed fields 
  Bufflehead  BUFF / / Reservoirs, rivers, ponds 
  Cackling Goose  CACG / / Marshes, floodplains, islands in small ponds, agricultural areas 
  Canada Goose  CANG5 / 10 8 / 20Shore or islands in any water body 
  Canada Warbler  CAWA / / Thick, moist forest undergrowth 
  Canvasback  CANV / / Reservoirs, rivers, ponds 
  Cape May Warbler  CMWA / / Coniferous forests 
  Carolina Chickadee  CACH3 / 1 8 / 31Mixed deciduous-coniferous woodlands, riparian and urban areas, gardens 
  Carolina Wren  CARW3 / 1 9 / 30Wood margins, scrub, gardens, orchards, farmland, bottomland forests 
  Caspian Tern  CATE / / Large rivers and lakes 
  Cattle Egret  CAEG / / Ponds, farmland, roadsides, and parks 
  Cave Swallow  CASW / / Variety of habitats with open foraging areas especially near water 
  Cedar Waxwing  CEDW6 / 15 7 / 31Open woodland, shade trees, streams 
  Cerulean Warbler  CERW5 / 25 8 / 5Mature moist or riverside forests 
  Chestnut-sided Warbler  CSWA / / Brushy, open second-growth, edges 
  Chimney Swift  CHSW5 / 20 8 / 15Primarily in towns 
  Chipping Sparrow  CHSP5 / 1 8 / 31Open woodlands with grass, river and lake shorelines, orchards, farms, parks 
  Clay-colored Sparrow  CCSP / / Wood margins, hedgerows, scrub, abandoned fields 
  Cliff Swallow  CLSW6 / 5 6 / 25Variety of habitats with open foraging areas especially near water, uses cliffs or buildings for nesting 
  Common Gallinule  COMO / / Marshes with open water 
  Common Goldeneye  COGO / / Reservoirs, rivers, ponds 
  Common Grackle  COGR4 / 15 7 / 10Farmland, urban areas 
  Common Loon  COLO / / Reservoirs, rivers, ponds,  
  Common Merganser  COME / / Reservoirs, rivers, ponds 
  Common Nighthawk  CONI6 / 5 7 / 15Barren country and flat roofs 
  Common Raven  CORA3 / 1 6 / 30Variety of woodland habitats, grasslands, farmland, urban areas, nests on cliffs 
  Common Redpoll  CORE / / Open woodland, scrub, weedy fields, suburban areas 
  Common Tern  COTE / / Marshes, lakes, islands 
  Common Yellowthroat  COYE5 / 25 8 / 10Brushy areas, preferably wet 
  Connecticut Warbler  CONW / / Variety of forest, woodland, scrub, and thicket habitats 
  Cooper's Hawk  COHA5 / 20 8 / 20Mixed woodlands, groves 
  Dickcissel  DICK6 / 1 8 / 31Open country, especially alfalfa 
  Double-crested Cormorant  DCCO / / Reservoirs, rivers, ponds 
  Downy Woodpecker  DOWO3 / 15 8 / 31Variety of woodland habitats, wood margins 
  Dunlin  DUNL / / Mudflats, marshes, flooded fields, shores of lakes and ponds 
  Eared Grebe  EAGR / / Reservoirs, rivers, ponds 
  Eastern Bluebird  EABL5 / 15 8 / 31Abandoned and agricultural fields, wood margins, hedgerows, scrub 
  Eastern Kingbird  EAKI5 / 25 7 / 15Open areas, edges, often near water 
  Eastern Meadowlark  EAME5 / 1 9 / 10Hayfields, pastures 
  Eastern Phoebe  EAPH5 / 1 8 / 31Near water, bridges, buildings 
  Eastern Screech-Owl  EASO4 / 1 8 / 15Mixed woodlands, riparian woods along wetlands, meadows, suburban areas 
  Eastern Towhee  EATO5 / 20 8 / 31Dry open woodlands, edges, brush 
  Eastern Wood-Pewee  EAWP6 / 5 8 / 15All woodland habitats 
  European Starling  EUST4 / 1 9 / 5Everywhere 
  Evening Grosbeak  EVGR / / Coniferous or deciduous forests, suburban areas 
  Field Sparrow  FISP5 / 1 8 / 31Brushy, weedy fields, hedgerows 
  Fish Crow  FICR5 / 10 8 / 15Wood edges, farms, tidewater areas 
  Forster's Tern  FOTE / / Marshes, lakes, rivers 
  Fox Sparrow  FOSP / / Thickets and edges of coniferous, mixed, or second-growth forests 
  Franklin's Gull  FRGU / / Marshes, lakes 
  Gadwall  GADW / / High ground near water 
  Glaucous Gull  GLGU / / Landfills, freshwater lakes, agricultural areas 
  Glossy Ibis  GLIB / / Marshes, wetlands, mudflats, fields, ponds  
  Golden Eagle  GOEA / / Open coniferous forests, abandoned fields 
  Golden-crowned Kinglet  GCKI / / Mixed coniferous-deciduous forests, especially where spruce or fir are present 
  Golden-winged Warbler  GWWA / / Damp, brushy fields, wood margins 
  Grasshopper Sparrow  GRSP5 / 25 8 / 31Hayfields, grassy pastures 
  Gray Catbird  GRCA5 / 25 8 / 31Dense thickets, shrubs, hedgerows 
  Gray-cheeked Thrush  GCTH / / Deciduous and bottomland forests, wood margins, hedgerows, scrub 
  Great Black-backed Gull  GBBG / / Landfills, salt marshes 
  Great Blue Heron  GBHE5 / 15 6 / 30Reservoirs, rivers, ponds, marshes, bottomland forests, floodplains  
  Great Crested Flycatcher  GCFL5 / 25 7 / 31Variety of woodland habitats 
  Great Egret  GREG / / Marshes, reservoirs, rivers, ponds 
  Great Horned Owl  GHOW12 / 15 8 / 31Open and secondary-growth woodlands, agricultural areas, suburban areas 
  Greater Scaup  GRSC / / Reservoirs, rivers, ponds 
  Greater White-fronted Goose  GWFG / / Reservoirs, rivers, ponds, muddy fields  
  Greater Yellowlegs  GRYE / / Reservoirs, rivers, ponds, marshes, muddy fields 
  Green Heron  GRHE5 / 1 7 / 15Reservoirs, rivers, ponds, bottomland forests, floodplains, marshes 
  Green-winged Teal  AGWT / / High ground near water 
  Hairy Woodpecker  HAWO3 / 15 8 / 31Deep woods, primarily deciduous 
  Henslow's Sparrow  HESP5 / 25 8 / 31Weedy fields, wet meadows 
  Hermit Thrush  HETH / / Damp forests with hemlocks 
  Herring Gull  HERG / / Rivers, ponds, mudflats, landfills, parking lots, fields, airports 
  Hooded Merganser  HOME / / Wooded swamps, fresh marshes, streams 
  Hooded Warbler  HOWA5 / 25 7 / 25Moist forests with dense understory 
  Horned Grebe  HOGR / / Reservoirs, rivers, ponds 
  Horned Lark  HOLA4 / 10 9 / 5Open barren country, prefers bare ground to short grass 
  House Finch  HOFI5 / 1 7 / 15Residential areas, especially evergreens 
  House Sparrow  HOSP2 / 1 9 / 30Cities, farms, parks, suburbs 
  House Wren  HOWR5 / 20 8 / 15Wood margins, hedgerows, scrub, gardens, orchards, farmland 
  Indigo Bunting  INBU6 / 1 8 / 15Edges, open forest, brush areas 
  Kentucky Warbler  KEWA5 / 25 7 / 15Moist deciduous woods, understory 
  Killdeer  KILL4 / 20 7 / 5Most open, sparsely vegetated areas 
  King Rail  KIRA / / Fresh and brackish marshes 
  Lapland Longspur  LALO / / Plowed fields, open grassland, pastures 
  Lark Sparrow  LASP / / Grass with low shrubs and open ground 
  Laughing Gull  LAGU / / Marshes, lakes, rivers, landfills 
  Least Bittern  LEBI / / Freshwater or brackish marshes with tall vegetation 
  Least Flycatcher  LEFL / / Wood edges, open deciduous woods 
  Least Sandpiper  LESA / / Wet meadows, mudflats, flooded fields, shores of ponds and lakes 
  Least Tern  LETE / / Reservoirs, rivers, ponds, lakes 
  Lesser Black-backed Gull  LBBG / / Rivers, lakes, landfills 
  Lesser Scaup  LESC / / Reservoirs, rivers, ponds 
  Lesser Yellowlegs  LEYE / / Reservoirs, rivers, ponds, marshes, muddy fields 
  Lincoln's Sparrow  LISP / / Wood margins, hedgerows, scrub, abandoned fields, bogs 
  Little Blue Heron  LBHE / / Marshes, reservoirs, rivers, ponds 
  Little Gull  LIGU / / Large lakes, rivers, marshes 
  Loggerhead Shrike  LOSH4 / 20 7 / 20Open country and grasslands with scattered trees and shrubs 
  Long-billed Dowitcher  LBDO / / Mudflats, edges of ponds and marshes 
  Long-eared Owl  LEOW / / Dense vegetation adjacent to open grassland or shrubland, open forests 
  Long-tailed Duck  LTDU / / Ponds, streams, wetlands, large lakes 
  Louisiana Waterthrush  LOWA5 / 1 7 / 10Rocky streams, sluggish backwaters 
  Magnolia Warbler  MAWA / / Coniferous forests 
  Mallard  MALL5 / 15 8 / 10High ground near water, often woods 
  Marsh Wren  MAWR / / Variety of marshes with dense reeds 
  Merlin  MERL / / Open coniferous woodland, grasslands, hedgerows, wood margins, scrub 
  Mississippi Kite  MIKI / / Riparian and open woodland, old growth forests 
  Mourning Dove  MODO5 / 1 7 / 20Gardens, orchards, farmland, wood margins, hedgerows, scrub 
  Mourning Warbler  MOWA / / Brushy areas in woodlands or edges 
  Mute Swan  MUSW / / Shore or islands in any water body 
  Nashville Warbler  NAWA / / Swamp and bog areas 
  Northern Bobwhite  NOBO4 / 15 9 / 30Hayfields, abandoned fields, wood margins, hedgerows, scrub 
  Northern Cardinal  NOCA3 / 15 9 / 30Edge, brush, parks, suburbs 
  Northern Goshawk  NOGO / / Large mature mixed woodlands 
  Northern Harrier  NOHA / / Marshes, wet pastures and meadows 
  Northern Mockingbird  NOMO4 / 1 9 / 10Open country, hedgerows, suburbs 
  Northern Parula  NOPA6 / 1 8 / 15Moist woods, bottomlands, spruces 
  Northern Pintail  NOPI / / Marshes, reservoirs, rivers, ponds 
  Northern Rough-winged Swallow  NRWS6 / 1 6 / 25Variety of open habitats, grassland, meadows, wood margins, rivers, ponds 
  Northern Saw-whet Owl  NSWO / / Mixed moist woods, with conifers 
  Northern Shoveler  NSHO / / Marshes, reservoirs, rivers, ponds 
  Northern Shrike  NSHR / / Open county with medium or tall trees and shrubs, forest edges 
  Northern Waterthrush  NOWA / / Swamps and bogs, pond edges 
  Olive-sided Flycatcher  OSFL / / Northern conifers 
  Orange-crowned Warbler  OCWA / / Thickets and shrubs along streams, forests, weedy fields 
  Orchard Oriole  OROR6 / 1 7 / 5Edges, hedgerows, scattered trees 
  Osprey  OSPR / / Reservoirs, rivers, ponds 
  Ovenbird  OVEN5 / 20 8 / 5Open mature mixed upland forest 
  Palm Warbler  PAWA / / Variety of woodland, second growth and thicket habitats, open fields 
  Pectoral Sandpiper  PESA / / Wet meadows, mudflats, flooded fields, shores of ponds and lakes 
  Peregrine Falcon  PEFA / / Variety of open habitats  
  Philadelphia Vireo  PHVI / / Early and mid-successional deciduous woods and parklands 
  Pied-billed Grebe  PBGR5 / 15 7 / 15Reservoirs, rivers, ponds, fresh marshes 
  Pileated Woodpecker  PIWO3 / 15 8 / 31Deep woods, some secondary growth 
  Pine Siskin  PISI / / Conifers, gardens, orchards, farmland 
  Pine Warbler  PIWA4 / 20 8 / 10Variety of pine forests 
  Prairie Warbler  PRAW5 / 25 7 / 20Brushy fields, edges, small pines 
  Prothonotary Warbler  PROW5 / 10 7 / 20Swamps, bottomlands 
  Purple Finch  PUFI / / Mixed woods, parklands, residential areas 
  Purple Martin  PUMA6 / 1 6 / 25Gardens, orchards, farmland, nest houses near water and large open areas 
  Red Crossbill  RECR / / Mature coniferous forests  
  Red Phalarope  REPH / / Reservoirs, rivers, ponds 
  Red-bellied Woodpecker  RBWO3 / 15 8 / 31Variety of woodland habitats 
  Red-breasted Merganser  RBME / / Reservoirs, rivers, ponds 
  Red-breasted Nuthatch  RBNU6 / 1 8 / 5Mature coniferous forests, suburban area with sufficient conifers 
  Red-eyed Vireo  REVI6 / 1 7 / 31Deciduous and mixed deciduous forests, urban areas, parks with large trees 
  Red-headed Woodpecker  RHWO5 / 25 8 / 20Open country with scattered trees 
  Red-necked Grebe  RNGR / / Reservoirs, rivers, ponds 
  Red-shouldered Hawk  RSHA5 / 1 8 / 31Wet mixed forests, swamps 
  Red-tailed Hawk  RTHA5 / 1 8 / 31Mature forests, often near edges 
  Red-throated Loon  RTLO / / Wetlands, bogs, ponds in forests, large lakes 
  Red-winged Blackbird  RWBL5 / 1 7 / 10Marshes, ponds, meadows, hayfields 
  Redhead  REDH / / Reservoirs, rivers, ponds 
  Ring-billed Gull  RBGU / / Rivers, ponds, landfills, golf courses, agricultural fields, shopping areas 
  Ring-necked Duck  RNDU / / Reservoirs, rivers, ponds, fresh marshes 
  Ring-necked Pheasant  RNEP4 / 15 9 / 30Open country, pastures, fields 
  Rock Pigeon  ROPI / / Urban areas, gardens, orchards, farmland, muddy fields 
  Rose-breasted Grosbeak  RBGR6 / 5 8 / 15Edges of moist deciduous woods 
  Rough-legged Hawk  RLHA / / Open coniferous forest, grasslands, abandoned fields 
  Ruby-crowned Kinglet  RCKI / / Mixed coniferous-deciduous forests, wood margins, scrub, abandoned fields 
  Ruby-throated Hummingbird  RTHU5 / 25 7 / 31Mixed woodlands, deciduous forest, gardens, orchards 
  Ruddy Duck  RUDU / / Dense marshes with open water 
  Ruffed Grouse  RUGR4 / 1 7 / 31Mixed upland woods 
  Rufous Hummingbird  RUHU / / Forested and brushy habitats, gardens 
  Rusty Blackbird  RUBL / / Swamps, wet woodlands, pond edges 
  Sandhill Crane  SACR / / Cow or horse pastures, muddy fields 
  Savannah Sparrow  SAVS6 / 1 8 / 15Hayfields, wet meadows, pastures 
  Scarlet Tanager  SCTA5 / 25 8 / 10Mature deciduous forests 
  Scissor-tailed Flycatcher  STFL / / Open grasslands with occasional trees and shrubs, towns and agricultural areas 
  Sedge Wren  SEWR6 / 10 9 / 20Wet meadows, hayfields, marshes 
  Semipalmated Plover  SEPL / / Reservoirs, rivers, ponds 
  Semipalmated Sandpiper  SESA / / Shores of lakes and ponds, mudflats, wet meadows 
  Sharp-shinned Hawk  SSHA6 / 1 8 / 10Conifers in extensive woodlands 
  Short-billed Dowitcher  SBDO / / Mudflats, flooded agricultural fields 
  Short-eared Owl  SEOW / / Open pastureland, marshes, meadows 
  Snow Bunting  SNBU / / Open weedy and grassy fields, along shores of lakes 
  Snow Goose  SNGO / / Muddy fields (plowed, harvested), fresh marshes 
  Snowy Egret  SNEG / / Marshes, reservoirs, rivers, ponds 
  Snowy Owl  SNOW / / Abandoned fields, agricultural areas, airports 
  Solitary Sandpiper  SOSA / / Reservoirs, rivers, ponds, marshes, muddy fields 
  Song Sparrow  SOSP5 / 1 9 / 10Brushy fields, marsh edges, suburban areas 
  Sora  SORA / / Fresh marshes, wet meadows 
  Spotted Sandpiper  SPSA / / Reservoirs, rivers, ponds, rocky streams 
  Stilt Sandpiper  STSA / / Mudflats, marshes, flooded fields, shores of lakes and ponds 
  Summer Tanager  SUTA / / Mixed dry upland woods 
  Surf Scoter  SUSC / / Reservoirs, rivers, ponds 
  Swainson's Thrush  SWTH / / Northern conifers, especially spruce 
  Swainson's Warbler  SWWA / / Forests with thick undergrowth 
  Swallow-tailed Kite  STKI / / Forested regions, bottomland, riverine forest, pine woodland 
  Swamp Sparrow  SWSP / / Marshes, wet brushy areas, bogs 
  Tennessee Warbler  TEWA / / Coniferous or mixed woodland, especially spruce 
  Tree Swallow  TRES5 / 25 6 / 25Open areas near water and fields 
  Tricolored Heron  TRHE / / Marshes, wetlands 
  Trumpeter Swan  TRUS / / Freshwater marshes, ponds, springs, rivers, and reservoirs 
  Tufted Titmouse  TUTI3 / 1 8 / 31Deciduous forests, parks, orchards, gardens, and suburban areas 
  Tundra Swan  TUSW / / Muddy fields, reservoirs, rivers, ponds 
  Turkey Vulture  TUVU4 / 10 8 / 1Woods, cliffs, caves, buildings 
  unid. Mexican / Eastern Whip-poor-will  WPWI5 / 10 7 / 15Dry open upland woods 
  unid. Pacific Wren / Winter Wren  WIWR / / Coniferous and deciduous forests, bottomland forests 
  unid. Rufous Hummingbird / Allen's Hummingbird  UNRA / / Forested and brushy habitats, gardens 
  Upland Sandpiper  UPSA5 / 20 6 / 25Open grasslands and meadows 
  Veery  VEER / / Deciduous forests, riparian habitats, shrubby habitats with small trees 
  Vesper Sparrow  VESP5 / 1 8 / 31Short grass areas, cultivated fields 
  Virginia Rail  VIRA5 / 20 8 / 15Fresh and brackish marshes 
  Warbling Vireo  WAVI6 / 10 8 / 10Open deciduous or riverside woods 
  Western Kingbird  WEKI / / Grassland, pasture, urban areas 
  Western Sandpiper  WESA / / Shores of lakes and ponds, mudflats, wet meadows 
  Whimbrel  WHIM / / Marshes, mudflats 
  White Ibis  WHIB / / Marshes, reservoirs, rivers, ponds, wetlands 
  White-breasted Nuthatch  WBNU5 / 10 8 / 15Mature deciduous forests near openings and edges, parks, suburban areas 
  White-crowned Sparrow  WCSP / / Wood margins, hedgerows, scrub, abandoned fields 
  White-eyed Vireo  WEVI5 / 25 8 / 15Brushy areas, often near water 
  White-rumped Sandpiper  WRSA / / Mudflats, grassy marshes, dry grassy areas near lakes and ponds 
  White-throated Sparrow  WTSP / / Wood margins, hedgerows, scrub, swamps, weedy fields, urban areas 
  White-winged Crossbill  WWCR / / Coniferous forests, especially where spruce cones are found 
  White-winged Scoter  WWSC / / Reservoirs, rivers, ponds 
  Wild Turkey  WITU4 / 15 9 / 30Mature deciduous forests, edges 
  Willet  WILL / / Marshes, mudflats 
  Willow Flycatcher  WIFL6 / 10 7 / 20Wet to fairly dry brushy areas 
  Wilson's Phalarope  WIPH / / Grassy borders of shallow lakes, marshes, and reservoirs 
  Wilson's Snipe  WISN / / Marshy edges of ponds, rivers, and brooks, wet meadows, fields 
  Wilson's Warbler  WIWA / / Fairly open woodlands with undergrowth or shrubs 
  Wood Duck  WODU5 / 1 8 / 15Wooded swamps, fresh marshes, streams 
  Wood Thrush  WOTH5 / 25 8 / 20Variety of woodland habitats 
  Worm-eating Warbler  WEWA5 / 20 7 / 20Deep deciduous woods 
  Yellow Warbler  YWAR6 / 1 7 / 10Wet brushy areas, farmlands 
  Yellow-bellied Flycatcher  YBFL / / Variety of forests and semi-open habitat 
  Yellow-bellied Sapsucker  YBSA / / Mixed woods, swamps, bogs 
  Yellow-billed Cuckoo  YBCU6 / 15 7 / 31Deciduous forests, floodplains, wood margins, hedgerows, scrub 
  Yellow-breasted Chat  YBCH5 / 25 8 / 5Brushy fields, thickets, wood edges 
  Yellow-crowned Night-Heron  YCNH / / Wooded habitats, usually near water 
  Yellow-headed Blackbird  YHBL / / Muddy fields, cow or horse pastures 
  Yellow-throated Vireo  YTVI5 / 25 8 / 15Tall deciduous trees 
  Yellow-throated Warbler  YTWA5 / 1 7 / 15Loblolly pines, sycamores 
 
* Alpha Codes are also known as 'banding codes' (not AOU codes, which are numeric)
** Safe dates represent a window when a singing male is assumed not to be in migration, and therefore on territory. Some atlases do not use safe dates, because they prefer (given present knowledge) not to assume migration or territorial status of all individuals. Safe dates generally apply to the Possible breeding category only when used.
Back to: Loudoun Co. (VA) 2009-2013 (data entry closed)
Related topics: Rare Species | Common Species
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Information contained in this application does not necessarily have the endorsement of USGS.
Contact: mwimer@usgs.gov

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