Maryland Checklist
Species data
Abundance Presence
Double-crest. Cormorant
Phalacrocorax auritus
Upper Coastal Plain 0.7
Northern Piedmont 0.2
Least Bittern
Ixobrychus exilis
Upper Coastal Plain 0.1
Great Blue Heron
Ardea herodias
Upper Coastal Plain 2.7
Northern Piedmont 1.1
Great Egret
Casmerodius albus
Upper Coastal Plain 1.0
Snowy Egret
Egretta thula
Upper Coastal Plain 0.2
Little Blue Heron
Egretta caerulea
Upper Coastal Plain 0.04
Cattle Egret
Bubulcus ibis
Upper Coastal Plain 2.6
Northern Piedmont 0.08
Green Heron
Butorides virescens
Upper Coastal Plain 1.3
Northern Piedmont 0.6
Ridge and Valley 0.1
Allegheny Plateau 0.4
Black-crn. Night Heron
Nycticorax nycticorax
Upper Coastal Plain 0.02
Northern Piedmont 0.2
Glossy Ibis
Plegadis falcinellus
Upper Coastal Plain 0.5
Mute Swan
Cygnus olor
Upper Coastal Plain 0.06
Canada Goose
Branta canadensis
Upper Coastal Plain 3.0
Northern Piedmont 4.7
Ridge and Valley 2.3
Allegheny Plateau 0.01
Wood Duck
Aix sponsa
Upper Coastal Plain 0.5
Northern Piedmont 0.2
Ridge and Valley 0.2
Allegheny Plateau 0.1
American Black Duck
Anas rubripes
Upper Coastal Plain 0.2
Northern Piedmont 0.00
Mallard
Anas platyrhynchos
Upper Coastal Plain 4.2
Northern Piedmont 1.8
Ridge and Valley 0.7
Allegheny Plateau 0.8
Blue-winged Teal
Anas discors
Upper Coastal Plain 0.00
Black Vulture
Coragyps atratus
Upper Coastal Plain 0.5
Northern Piedmont 1.0
Ridge and Valley 0.3
Turkey Vulture
Cathartes aura
Upper Coastal Plain 9.0
Northern Piedmont 3.8
Ridge and Valley 1.1
Allegheny Plateau 1.4
Osprey
Pandion haliaetus
Upper Coastal Plain 0.9
Northern Piedmont 0.05
Bald Eagle
Haliaeetus leucocephalus
Upper Coastal Plain 0.2
Northern Piedmont 0.02
Northern Harrier
Circus cyaneus
Upper Coastal Plain 0.07
Northern Piedmont 0.01
Sharp-shinned Hawk
Accipiter striatus
Northern Piedmont 0.00
Ridge and Valley 0.01
Allegheny Plateau 0.1
Cooper's Hawk
Accipiter cooperii
Upper Coastal Plain 0.04
Northern Piedmont 0.06
Ridge and Valley 0.01
Allegheny Plateau 0.05
Red-shouldered Hawk
Buteo lineatus
Upper Coastal Plain 0.5
Northern Piedmont 0.3
Ridge and Valley 0.2
Allegheny Plateau 0.1
Broad-winged Hawk
Buteo platypterus
Upper Coastal Plain 0.02
Northern Piedmont 0.08
Ridge and Valley 0.1
Allegheny Plateau 0.3
Red-tailed Hawk
Buteo jamaicensis
Upper Coastal Plain 0.6
Northern Piedmont 0.4
Ridge and Valley 0.6
Allegheny Plateau 0.08
American Kestrel
Falco sparverius
Upper Coastal Plain 0.3
Northern Piedmont 0.7
Ridge and Valley 0.4
Allegheny Plateau 0.1
Ring-necked Pheasant
Phasianus colchicus
Upper Coastal Plain 0.2
Northern Piedmont 7.8
Ridge and Valley 2.4
Ruffed Grouse
Bonasa umbellus
Ridge and Valley 0.2
Allegheny Plateau 0.06
Wild Turkey
Meleagris gallopavo
Upper Coastal Plain 0.1
Northern Piedmont 0.02
Ridge and Valley 0.7
Allegheny Plateau 0.1
Northern Bobwhite
Colinus virginianus
Upper Coastal Plain 29.2
Northern Piedmont 3.4
Ridge and Valley 1.0
Allegheny Plateau 0.05
Black Rail
Laterallus jamaicensis
Upper Coastal Plain 0.00
Clapper Rail
Rallus longirostris
Upper Coastal Plain 0.2
King Rail
Rallus elegans
Upper Coastal Plain 0.02
Virginia Rail
Rallus limicola
Upper Coastal Plain 0.2
Common Moorhen
Gallinula chloropus
Upper Coastal Plain 0.03
Killdeer
Charadrius vociferus
Upper Coastal Plain 3.9
Northern Piedmont 2.6
Ridge and Valley 2.8
Allegheny Plateau 3.9
Willet
Catoptrophorus semipalmatus
Upper Coastal Plain 0.4
Spotted Sandpiper
Actitis macularia
Upper Coastal Plain 0.00
Northern Piedmont 0.00
Allegheny Plateau 0.02
Upland Sandpiper
Bartramia longicauda
Northern Piedmont 0.01
Ridge and Valley 0.01
American Woodcock
Scolopax minor
Upper Coastal Plain 0.04
Northern Piedmont 0.00
Allegheny Plateau 0.01
Laughing Gull
Larus atricilla
Upper Coastal Plain 15.1
Ring-billed Gull
Larus delawarensis
Upper Coastal Plain 0.8
Northern Piedmont 0.06
Ridge and Valley 0.05
Allegheny Plateau 0.01
Herring Gull
Larus argentatus
Upper Coastal Plain 0.8
Northern Piedmont 0.00
Great Black-backed Gull
Larus marinus
Upper Coastal Plain 0.07
Northern Piedmont 0.01
Royal Tern
Sterna maxima
Upper Coastal Plain 0.01
Common Tern
Sterna hirundo
Upper Coastal Plain 0.01
Forster's Tern
Sterna forsteri
Upper Coastal Plain 0.3
Least Tern
Sterna antillarum
Upper Coastal Plain 0.1
Northern Piedmont 0.00
Black Skimmer
Rhynchops niger
Upper Coastal Plain 0.01
Rock Dove
Columba livia
Upper Coastal Plain 8.4
Northern Piedmont 15.9
Ridge and Valley 14.9
Allegheny Plateau 5.4
Mourning Dove
Zenaida macroura
Upper Coastal Plain 29.0
Northern Piedmont 46.6
Ridge and Valley 26.0
Allegheny Plateau 13.1
Monk Parakeet
Myiopsitta monachus
Upper Coastal Plain 0.00
Black-billed Cuckoo
Coccyzus erythropthalmus
Upper Coastal Plain 0.06
Northern Piedmont 0.1
Ridge and Valley 0.6
Allegheny Plateau 0.6
Yellow-billed Cuckoo
Coccyzus americanus
Upper Coastal Plain 6.0
Northern Piedmont 1.9
Ridge and Valley 5.9
Allegheny Plateau 0.8
Common Barn Owl
Tyto alba
Upper Coastal Plain 0.00
Eastern Screech-owl
Otus asio
Upper Coastal Plain 0.02
Northern Piedmont 0.05
Allegheny Plateau 0.03
Great Horned Owl
Bubo virginianus
Upper Coastal Plain 0.4
Northern Piedmont 0.2
Ridge and Valley 0.03
Barred Owl
Strix varia
Upper Coastal Plain 0.2
Northern Piedmont 0.06
Ridge and Valley 0.07
Allegheny Plateau 0.08
Common Nighthawk
Chordeiles minor
Upper Coastal Plain 0.00
Ridge and Valley 0.1
Chuck-will's-widow
Caprimulgus carolinensis
Upper Coastal Plain 0.8
Northern Piedmont 0.00
Whip-poor-will
Caprimulgus vociferus
Upper Coastal Plain 0.4
Northern Piedmont 0.2
Ridge and Valley 1.2
Chimney Swift
Chaetura pelagica
Upper Coastal Plain 11.4
Northern Piedmont 13.0
Ridge and Valley 11.1
Allegheny Plateau 2.2
Ruby-thr. Hummingbird
Archilochus colubris
Upper Coastal Plain 0.7
Northern Piedmont 0.2
Ridge and Valley 1.0
Allegheny Plateau 0.7
Belted Kingfisher
Ceryle alcyon
Upper Coastal Plain 0.1
Northern Piedmont 0.4
Ridge and Valley 0.2
Allegheny Plateau 0.1
Red-headed Woodpecker
Melanerpes erythrocephalus
Upper Coastal Plain 0.2
Northern Piedmont 0.5
Ridge and Valley 0.2
Allegheny Plateau 0.2
Red-bellied Woodpecker
Melanerpes carolinus
Upper Coastal Plain 10.9
Northern Piedmont 11.0
Ridge and Valley 10.6
Allegheny Plateau 0.5
Downy Woodpecker
Picoides pubescens
Upper Coastal Plain 4.0
Northern Piedmont 3.9
Ridge and Valley 3.9
Allegheny Plateau 2.0
Hairy Woodpecker
Picoides villosus
Upper Coastal Plain 0.8
Northern Piedmont 0.5
Ridge and Valley 1.5
Allegheny Plateau 1.7
Yellow-shafted Flicker
Colaptes auratus
Upper Coastal Plain 3.5
Northern Piedmont 6.6
Ridge and Valley 5.8
Allegheny Plateau 2.9
Pileated Woodpecker
Dryocopus pileatus
Upper Coastal Plain 1.5
Northern Piedmont 0.5
Ridge and Valley 8.1
Allegheny Plateau 1.6
Olive-sided Flycatcher
Contopus borealis
Allegheny Plateau 0.01
Eastern Wood-pewee
Contopus virens
Upper Coastal Plain 7.8
Northern Piedmont 8.3
Ridge and Valley 11.8
Allegheny Plateau 8.2
Acadian Flycatcher
Empidonax virescens
Upper Coastal Plain 6.2
Northern Piedmont 3.7
Ridge and Valley 4.4
Allegheny Plateau 3.5
Alder Flycatcher
Empidonax alnorium
Allegheny Plateau 0.3
Willow Flycatcher
Empidonax traillii
Upper Coastal Plain 0.08
Northern Piedmont 2.0
Ridge and Valley 0.6
Allegheny Plateau 1.5
Least Flycatcher
Empidonax minimus
Northern Piedmont 0.00
Allegheny Plateau 2.0
Eastern Phoebe
Sayornis phoebe
Upper Coastal Plain 1.1
Northern Piedmont 2.6
Ridge and Valley 5.5
Allegheny Plateau 4.4
Grt. Crested Flycatcher
Myiarchus crinitus
Upper Coastal Plain 4.8
Northern Piedmont 2.7
Ridge and Valley 8.4
Allegheny Plateau 1.9
Eastern Kingbird
Tyrannus tyrannus
Upper Coastal Plain 4.0
Northern Piedmont 4.7
Ridge and Valley 1.7
Allegheny Plateau 0.3
Horned Lark
Eremophila alpestris
Upper Coastal Plain 4.4
Northern Piedmont 0.3
Ridge and Valley 0.5
Allegheny Plateau 0.3
Purple Martin
Progne subis
Upper Coastal Plain 12.3
Northern Piedmont 2.4
Ridge and Valley 0.9
Allegheny Plateau 0.8
Tree Swallow
Tachycineta bicolor
Upper Coastal Plain 0.7
Northern Piedmont 0.5
Ridge and Valley 0.4
Allegheny Plateau 2.5
N. Rough-winged Swallow
Stelgidopteryx serripennis
Upper Coastal Plain 0.4
Northern Piedmont 0.6
Ridge and Valley 1.0
Allegheny Plateau 0.1
Bank Swallow
Riparia riparia
Upper Coastal Plain 0.8
Northern Piedmont 0.04
Ridge and Valley 0.1
Cliff Swallow
Hirundo pyrrhonota
Upper Coastal Plain 0.00
Northern Piedmont 0.05
Ridge and Valley 0.05
Allegheny Plateau 1.1
Barn Swallow
Hirundo rustica
Upper Coastal Plain 17.6
Northern Piedmont 20.6
Ridge and Valley 12.4
Allegheny Plateau 16.3
Blue Jay
Cyanocitta cristata
Upper Coastal Plain 9.6
Northern Piedmont 12.0
Ridge and Valley 10.7
Allegheny Plateau 5.9
American Crow
Corvus brachyrhynchos
Upper Coastal Plain 43.5
Northern Piedmont 49.5
Ridge and Valley 43.9
Allegheny Plateau 44.5
Fish Crow
Corvus ossifragus
Upper Coastal Plain 5.3
Northern Piedmont 3.7
Ridge and Valley 3.2
Common Raven
Corvus corax
Ridge and Valley 1.5
Allegheny Plateau 0.3
Black-capped Chickadee
Parus atricapillus
Northern Piedmont 0.02
Ridge and Valley 6.6
Allegheny Plateau 9.2
Carolina Chickadee
Parus carolinensis
Upper Coastal Plain 8.5
Northern Piedmont 6.8
Ridge and Valley 0.6
Tufted Titmouse
Parus bicolor
Upper Coastal Plain 17.6
Northern Piedmont 13.3
Ridge and Valley 18.7
Allegheny Plateau 6.4
White-breasted Nuthatch
Sitta carolinensis
Upper Coastal Plain 0.3
Northern Piedmont 1.5
Ridge and Valley 4.0
Allegheny Plateau 4.1
Brown-headed Nuthatch
Sitta pusilla
Upper Coastal Plain 0.2
Brown Creeper
Certhia americana
Upper Coastal Plain 0.00
Ridge and Valley 0.05
Allegheny Plateau 0.2
Carolina Wren
Thryothorus ludovicianus
Upper Coastal Plain 16.5
Northern Piedmont 7.9
Ridge and Valley 4.8
Allegheny Plateau 0.5
House Wren
Troglodytes aedon
Upper Coastal Plain 2.8
Northern Piedmont 16.9
Ridge and Valley 10.8
Allegheny Plateau 9.3
Winter Wren
Troglodytes troglodytes
Allegheny Plateau 0.04
Marsh Wren
Cistothorus palustris
Upper Coastal Plain 0.3
Golden-crowned Kinglet
Regulus satrapa
Allegheny Plateau 0.2
Blue-gray Gnatcatcher
Polioptila caerulea
Upper Coastal Plain 2.7
Northern Piedmont 2.6
Ridge and Valley 6.0
Allegheny Plateau 1.4
Eastern Bluebird
Sialia sialis
Upper Coastal Plain 4.5
Northern Piedmont 3.0
Ridge and Valley 3.2
Allegheny Plateau 1.9
Veery
Catharus fuscescens
Northern Piedmont 0.7
Allegheny Plateau 7.1
Hermit Thrush
Catharus guttatus
Northern Piedmont 0.00
Allegheny Plateau 1.4
Wood Thrush
Hylocichla mustelina
Upper Coastal Plain 18.5
Northern Piedmont 16.8
Ridge and Valley 21.0
Allegheny Plateau 10.8
American Robin
Turdus migratorius
Upper Coastal Plain 47.9
Northern Piedmont 73.3
Ridge and Valley 46.2
Allegheny Plateau 49.7
Gray Catbird
Dumetella carolinensis
Upper Coastal Plain 7.0
Northern Piedmont 27.5
Ridge and Valley 14.9
Allegheny Plateau 14.6
Northern Mockingbird
Mimus polyglottos
Upper Coastal Plain 29.1
Northern Piedmont 33.9
Ridge and Valley 15.8
Allegheny Plateau 0.02
Brown Thrasher
Toxostoma rufum
Upper Coastal Plain 2.5
Northern Piedmont 2.5
Ridge and Valley 3.2
Allegheny Plateau 1.7
Cedar Waxwing
Bombycilla cedrorum
Upper Coastal Plain 1.8
Northern Piedmont 2.3
Ridge and Valley 5.5
Allegheny Plateau 10.2
Loggerhead Shrike
Lanius ludovicianus
Northern Piedmont 0.01
European Starling
Sturnus vulgaris
Upper Coastal Plain 85.2
Northern Piedmont 104.1
Ridge and Valley 70.6
Allegheny Plateau 27.2
White-eyed Vireo
Vireo griseus
Upper Coastal Plain 5.9
Northern Piedmont 2.0
Ridge and Valley 0.6
Allegheny Plateau 0.1
Solitary Vireo
Vireo solitarius
Ridge and Valley 0.4
Allegheny Plateau 1.1
Yellow-throated Vireo
Vireo flavifrons
Upper Coastal Plain 0.8
Northern Piedmont 0.8
Ridge and Valley 3.0
Allegheny Plateau 0.5
Warbling Vireo
Vireo gilvus
Upper Coastal Plain 0.1
Northern Piedmont 0.6
Ridge and Valley 0.4
Red-eyed Vireo
Vireo olivaceus
Upper Coastal Plain 21.3
Northern Piedmont 10.9
Ridge and Valley 35.6
Allegheny Plateau 63.8
Brewster's Warbler
Northern Piedmont 0.00
Blue-winged Warbler
Vermivora pinus
Upper Coastal Plain 0.01
Northern Piedmont 0.2
Ridge and Valley 0.1
Allegheny Plateau 0.07
Golden-winged Warbler
Vermivora chrysoptera
Ridge and Valley 0.2
Allegheny Plateau 0.2
Nashville Warbler
Vermivora ruficapilla
Allegheny Plateau 0.03
Northern Parula
Parula americana
Upper Coastal Plain 2.7
Northern Piedmont 0.6
Ridge and Valley 0.5
Allegheny Plateau 1.8
Yellow Warbler
Dendroica petechia
Upper Coastal Plain 0.8
Northern Piedmont 3.0
Ridge and Valley 4.4
Allegheny Plateau 4.7
Chestnut-sided Warbler
Dendroica pensylvanica
Ridge and Valley 0.1
Allegheny Plateau 6.1
Magnolia Warbler
Dendroica magnolia
Allegheny Plateau 0.9
Black-thr. Blue Warbler
Dendroica caerulescens
Allegheny Plateau 1.2
Black-th. Green Warbler
Dendroica virens
Allegheny Plateau 1.2
Blackburnian Warbler
Dendroica fusca
Allegheny Plateau 0.2
Yellow-throated Warbler
Dendroica dominica
Upper Coastal Plain 0.2
Northern Piedmont 0.03
Ridge and Valley 0.01
Pine Warbler
Dendroica pinus
Upper Coastal Plain 6.4
Northern Piedmont 0.2
Ridge and Valley 7.9
Prairie Warbler
Dendroica discolor
Upper Coastal Plain 2.7
Northern Piedmont 0.9
Ridge and Valley 2.5
Allegheny Plateau 0.09
Cerulean Warbler
Dendroica cerulea
Upper Coastal Plain 0.01
Northern Piedmont 0.2
Ridge and Valley 0.8
Allegheny Plateau 0.5
Black-&-white Warbler
Mniotilta varia
Upper Coastal Plain 0.8
Northern Piedmont 0.3
Ridge and Valley 0.5
Allegheny Plateau 1.1
American Redstart
Setophaga ruticilla
Upper Coastal Plain 0.3
Northern Piedmont 0.6
Ridge and Valley 3.7
Allegheny Plateau 2.9
Prothonotary Warbler
Protonotaria citrea
Upper Coastal Plain 1.0
Northern Piedmont 0.02
Worm-eating Warbler
Helmitheros vermivorus
Upper Coastal Plain 0.5
Northern Piedmont 0.2
Ridge and Valley 4.7
Allegheny Plateau 0.2
Swainson's Warbler
Limnothlypis swainsonii
Upper Coastal Plain 0.00
Ovenbird
Seiurus aurocapillus
Upper Coastal Plain 7.1
Northern Piedmont 3.2
Ridge and Valley 10.4
Allegheny Plateau 13.9
Northern Waterthrush
Seiurus noveboracensis
Allegheny Plateau 0.03
Louisiana Waterthrush
Seiurus motacilla
Upper Coastal Plain 0.4
Northern Piedmont 0.6
Ridge and Valley 0.4
Allegheny Plateau 0.6
Kentucky Warbler
Oporornis formosus
Upper Coastal Plain 1.6
Northern Piedmont 1.0
Ridge and Valley 0.9
Allegheny Plateau 1.3
Mourning Warbler
Oporornis philadelphia
Allegheny Plateau 0.01
Common Yellowthroat
Geothlypis trichas
Upper Coastal Plain 13.1
Northern Piedmont 7.4
Ridge and Valley 5.2
Allegheny Plateau 22.6
Hooded Warbler
Wilsonia citrina
Upper Coastal Plain 1.5
Northern Piedmont 0.3
Ridge and Valley 3.0
Allegheny Plateau 2.6
Canada Warbler
Wilsonia canadensis
Allegheny Plateau 0.7
Yellow-breasted Chat
Icteria virens
Upper Coastal Plain 4.8
Northern Piedmont 1.1
Ridge and Valley 5.1
Allegheny Plateau 0.4
Summer Tanager
Piranga rubra
Upper Coastal Plain 1.3
Northern Piedmont 0.01
Ridge and Valley 0.03
Scarlet Tanager
Piranga olivacea
Upper Coastal Plain 4.2
Northern Piedmont 3.3
Ridge and Valley 22.4
Allegheny Plateau 14.6
Northern Cardinal
Cardinalis cardinalis
Upper Coastal Plain 29.8
Northern Piedmont 31.9
Ridge and Valley 24.7
Allegheny Plateau 6.5
Rose-breasted Grosbeak
Pheucticus ludovicianus
Northern Piedmont 0.02
Ridge and Valley 0.8
Allegheny Plateau 3.9
Blue Grosbeak
Guiraca caerulea
Upper Coastal Plain 11.5
Northern Piedmont 0.9
Ridge and Valley 0.05
Allegheny Plateau 0.01
Indigo Bunting
Passerina cyanea
Upper Coastal Plain 30.6
Northern Piedmont 22.2
Ridge and Valley 37.3
Allegheny Plateau 31.3
Dickcissel
Spiza americana
Upper Coastal Plain 0.02
Northern Piedmont 0.02
Ridge and Valley 0.01
Eastern Towhee
Pipilo erythrophthalmus
Upper Coastal Plain 6.8
Northern Piedmont 5.7
Ridge and Valley 23.6
Allegheny Plateau 18.8
Chipping Sparrow
Spizella passerina
Upper Coastal Plain 21.4
Northern Piedmont 18.2
Ridge and Valley 27.5
Allegheny Plateau 30.6
Field Sparrow
Spizella pusilla
Upper Coastal Plain 8.7
Northern Piedmont 8.4
Ridge and Valley 12.8
Allegheny Plateau 9.1
Vesper Sparrow
Pooecetes gramineus
Upper Coastal Plain 0.3
Northern Piedmont 1.1
Ridge and Valley 1.8
Allegheny Plateau 1.1
Savannah Sparrow
Passerculus sandwichensis
Upper Coastal Plain 0.00
Northern Piedmont 0.09
Ridge and Valley 0.3
Allegheny Plateau 5.3
Grasshopper Sparrow
Ammodramus savannarum
Upper Coastal Plain 3.6
Northern Piedmont 3.8
Ridge and Valley 3.1
Allegheny Plateau 1.7
Henslow's Sparrow
Ammodramus henslowii
Allegheny Plateau 0.03
Saltm. Shrp-tl. Sparrow
Ammodramus caudacutus
Upper Coastal Plain 0.00
Seaside Sparrow
Ammodramus maritimus
Upper Coastal Plain 0.7
Song Sparrow
Melospiza melodia
Upper Coastal Plain 9.7
Northern Piedmont 25.3
Ridge and Valley 17.5
Allegheny Plateau 28.7
Swamp Sparrow
Melospiza georgiana
Upper Coastal Plain 0.02
Northern Piedmont 0.01
Allegheny Plateau 1.3
Slate-colored Junco
Junco hyemalis
Allegheny Plateau 0.07
Bobolink
Dolichonyx oryzivorus
Upper Coastal Plain 0.03
Northern Piedmont 0.06
Allegheny Plateau 6.1
Red-winged Blackbird
Agelaius phoeniceus
Upper Coastal Plain 49.7
Northern Piedmont 41.7
Ridge and Valley 17.5
Allegheny Plateau 39.8
Eastern Meadowlark
Sturnella magna
Upper Coastal Plain 5.6
Northern Piedmont 9.1
Ridge and Valley 6.2
Allegheny Plateau 8.7
Boat-tailed Grackle
Quiscalus major
Upper Coastal Plain 0.2
Common Grackle
Quiscalus quiscula
Upper Coastal Plain 142.6
Northern Piedmont 86.8
Ridge and Valley 83.2
Allegheny Plateau 19.3
Brown-headed Cowbird
Molothrus ater
Upper Coastal Plain 10.8
Northern Piedmont 9.5
Ridge and Valley 9.7
Allegheny Plateau 5.8
Orchard Oriole
Icterus spurius
Upper Coastal Plain 7.8
Northern Piedmont 1.9
Ridge and Valley 1.7
Allegheny Plateau 0.2
Baltimore Oriole
Icterus galbula
Upper Coastal Plain 1.0
Northern Piedmont 3.9
Ridge and Valley 3.2
Allegheny Plateau 2.6
Purple Finch
Carpodacus purpureus
Ridge and Valley 0.01
Allegheny Plateau 0.4
House Finch
Carpodacus mexicanus
Upper Coastal Plain 12.2
Northern Piedmont 28.5
Ridge and Valley 14.6
Allegheny Plateau 4.5
American Goldfinch
Carduelis tristis
Upper Coastal Plain 5.7
Northern Piedmont 10.8
Ridge and Valley 11.1
Allegheny Plateau 9.1
House Sparrow
Passer domesticus
Upper Coastal Plain 43.3
Northern Piedmont 72.4
Ridge and Valley 48.8
Allegheny Plateau 12.8