American Ornithologists’ Union Checklist of Elizabeth Hartwell Mason Neck NWR (2038 species – Updated August 2004 to include the 45th Supplement) l:krueperd/aviangeneral/AOU Checklist July 2004.doc

SWANS – GEESE - DUCKS Snow Goose BITTERNS – HERONS - EGRETS Canada Goose American Bittern Mute Swan Least Bittern Tundra Swan Great Blue Heron Wood Duck Great Egret Gadwall Snowy Egret American Wigeon Little Blue Heron American Black Duck Tricolored Heron Mallard Cattle Egret Blue-winged Teal Green Heron Northern Shoveler Black-crowned Night-Heron Northern Pintail Green-winged Teal NEW WORLD VULTURES Canvasback Black Vulture Redhead Turkey Vulture Ring-necked Duck Greater Scaup OSPREY – KITES – HAWKS - EAGLES Lesser Scaup Osprey Surf Scoter Bald Eagle White-winged Scoter Northern Harrier Black Scoter Sharp-shinned Hawk Bufflehead Cooper’s Hawk Common Goldeneye Red-shouldered Hawk Hooded Merganser Broad-winged Hawk Common Merganser Red-tailed Hawk Red-breasted Merganser Ruddy Duck FALCONS - CARCARAS American Kestrel GALLINACEOUS BIRDS Merlin Ruffed Grouse Peregrine Falcon Wild Turkey Northern Bobwhite RAILS King Rail LOONS Virginia Rail Common Loon Sora Common Moorhen GREBES American Coot Pied-billed Grebe Horned Grebe PLOVERS Killdeer CORMORANTS Double-crested Cormorant

SANDPIPERS - PHALAROPES Greater Yellowlegs WOODPECKER Lesser Yellowlegs Red-headed Woodpecker Spotted Redshank Red-bellied Woodpecker Solitary Sandpiper Yellow-bellied Sapsucker Willet Downy Woodpecker Spotted Sandpiper Hairy Woodpecker Least Sandpiper Northern Flicker Dunlin Pileated Woodpecker Common Snipe American Woodcock TYRANT FLYCATCHERS Eastern Wood-Pewee SKUAS – JAEGERS – GULLS – TERNS Yellow-bellied Flycatcher Laughing Gull Acadian Flycatcher Bonaparte’s Gull Willow Flycatcher Ring-billed Gull Eastern Phoebe Herring Gull Great Crested Flycatcher Great Black-backed Gull Eastern Kingbird Caspian Tern Common Tern SHRIKES Forster’s Tern Loggerhead Shrike Least Tern VIREOS PIGEONS - DOVES White-eyed Vireo Rock Pigeon Yellow-throated Vireo Mourning Dove Blue-headed Vireo Warbling Vireo CUCKOOS – ANIS Red-eyed Vireo Black-billed Cuckoo Yellow-billed Cuckoo CROWS – JAYS – MAGPIES Blue Jay BARN OWLS American Crow Barn Owl Fish Crow

TYPICAL OWLS SWALLOWS Eastern Screech-Owl Purple Martin Great Horned Owl Tree Swallow Barred Owl Northern Rough-winged Swallow Cliff Swallow NIGHTJARS Barn Swallow Common Nighthawk Chuck-will’s-widow TITMICE - CHICKADEES Whip-poor-will Carolina Chickadee Black-capped Chickadee SWIFTS Tufted Titmouse Chimney Swift NUTHATCHES HUMMINGBIRDS Red-breasted Nuthatch Ruby-throated Hummingbird White-breasted Nuthatch

KINGFISHER CREEPERS Belted Kingfisher Brown Creeper Bay-breasted Warbler WRENS Blackpoll Warbler Carolina Wren Cerulean Warbler. House Wren Black-and-white Warbler Winter Wren American Redstart Marsh Wren Prothonotary Warbler Worm-eating Warbler KINGLETS Ovenbird Golden-crowned Kinglet. Northern Waterthrush Ruby-crowned Kinglet Louisiana Waterthrush Kentucky Warbler OLD WORLD WARBLERS Connecticut Warbler Blue-gray Gnatcatcher Mourning Warbler Common Yellowthroat THRUSHES Hooded Warbler Eastern Bluebird Canada Warbler Veery Yellow-breasted Chat Gray-cheeked Thrush Swainson’s Thrush TANAGERS Hermit Thrush Summer Tanager Wood Thrush Scarlet Tanager American Robin SPARROWS - TOWHEES MIMIC THRUSHES Eastern Towhee Gray Catbird American Tree Sparrow Northern Mockingbird Chipping Sparrow Brown Thrasher Field Sparrow Savannah Sparrow. STARLINGS Fox Sparrow European Starling Song Sparrow Lincoln’s Sparrow WAXWINGS Swamp Sparrow Cedar Waxwing White-throated Sparrow White-crowned Sparrow WOOD WARBLERS Dark-eyed Junco Blue-winged Warbler Yellow-eyed Junco Golden-winged Warbler McCown’s Longspur Tennessee Warbler Lapland Longspur Nashville Warbler Smith’s Longspur Northern Parula Chestnut-collared Longspur Yellow Warbler Pine Bunting Chestnut-sided Warbler Little Bunting Magnolia Warbler Rustic Bunting Cape May Warbler Yellow-throated Bunting Black-throated Blue Warbler Yellow-breasted Bunting Yellow-rumped Warbler Gray Bunting Black-throated Green Warbler Pallas’s Bunting Blackburnian Warbler Reed Bunting Yellow-throated Warbler Snow Bunting Pine Warbler McKay’s Bunting Prairie Warbler Palm Warbler CARDINALS – GROSBEAKS - ALLIES Northern Cardinal. Rose-breasted Grosbeak Blue Grosbeak Indigo Bunting

BLACKBIRDS - ORIOLES Red-winged Blackbird Eastern Meadowlark Rusty Blackbird Common Grackle Brown-headed Cowbird Orchard Oriole Baltimore Oriole

FINCHES Purple Finch Pine Siskin American Goldfinch Evening Grosbeak

OLD WORLD SPARROWS House Sparrow