Gadwall x American Wigeon (hybrid)
Eurasian x American Wigeon (hybrid)
Eurasian/American Wigeon
Mallard
Muscovy Duck x Mallard (hybrid)
Wood Duck x Mallard (hybrid)
Gadwall x Mallard (hybrid)
American Wigeon x Mallard (hybrid)
Mallard/Mexican Duck
American Black Duck
Northern Pintail
American Wigeon x Northern Pintail (hybrid)
Mallard x Northern Pintail (hybrid)
Green-winged Teal
Blue-winged x Green-winged Teal (hybrid)
Cinnamon x Green-winged Teal (hybrid)
Mallard x Green-winged Teal (hybrid)
Anas sp.
teal sp.
dabbling duck sp.
Canvasback
Redhead
Canvasback x Redhead (hybrid)
Ring-necked Duck
Tufted Duck
Greater Scaup
Tufted Duck x Greater Scaup (hybrid)
Lesser Scaup
Ring-necked Duck x Lesser Scaup (hybrid)
Tufted Duck x Lesser Scaup (hybrid)
Ring-necked Duck x scaup sp. (hybrid)
Tufted Duck x scaup sp. (hybrid)
Greater/Lesser Scaup
Aythya sp.
Steller's Eider
King Eider
Common Eider
King/Common Eider
Harlequin Duck
Surf Scoter
White-winged Scoter
Common Scoter
Black Scoter
Surf/Black Scoter
scoter sp.
Long-tailed Duck
Bufflehead
Common Goldeneye
Bufflehead x Common Goldeneye (hybrid)
Bufflehead x goldeneye sp. (hybrid)
Barrow's Goldeneye
Common x Barrow's Goldeneye (hybrid)
Common/Barrow's Goldeneye
Smew
Hooded Merganser
Common Goldeneye x Hooded Merganser (hybrid)
Barrow's Goldeneye x Hooded Merganser (hybrid)
goldeneye sp. x Hooded Merganser (hybrid)
Common Merganser
Red-breasted Merganser
Common/Red-breasted Merganser
merganser sp.
Ruddy Duck
duck sp.
waterfowl sp.
Grouse, Quail, and Allies
Helmeted Guineafowl
Mountain Quail
Northern Bobwhite
California Quail
Gambel's Quail
new world quail sp.
Wild Turkey
Ruffed Grouse
Greater Sage-Grouse
Dusky Grouse
Sooty Grouse
Dusky/Sooty Grouse
Sharp-tailed Grouse
White-tailed Ptarmigan
Spruce Grouse
grouse sp.
Gray Partridge
Reeves's Pheasant
Golden Pheasant
Ring-necked Pheasant
Green Pheasant
Ring-necked/Green Pheasant
Indian Peafowl
Red Junglefowl
Red-legged Partridge
Chukar
Flamingos
American Flamingo
Grebes
Pied-billed Grebe
Horned Grebe
Red-necked Grebe
Eared Grebe
Horned/Eared Grebe
Podiceps sp.
Western Grebe
Clark's Grebe
Western x Clark's Grebe (hybrid)
Western/Clark's Grebe
grebe sp.
Pigeons and Doves
Rock Pigeon
Columba sp.
Band-tailed Pigeon
Rock/Band-tailed Pigeon
Eurasian Collared-Dove
African Collared-Dove
Eurasian/African Collared-Dove
Common Ground Dove
Common/Ruddy Ground Dove
White-winged Dove
Mourning Dove
Eurasian Collared-Dove x Mourning Dove (hybrid)
pigeon/dove sp.
Cuckoos
Greater Roadrunner
Yellow-billed Cuckoo
Nightjars
Lesser Nighthawk
Common Nighthawk
nighthawk sp.
Common Poorwill
Eastern Whip-poor-will
nightjar sp.
Swifts
Black Swift
Chimney Swift
Vaux's Swift
Chimney/Vaux's Swift
Chaetura sp.
White-throated Swift
large swift sp.
small swift sp.
swift sp.
Hummingbirds
Ruby-throated Hummingbird
Black-chinned Hummingbird
Anna's Hummingbird
Black-chinned x Anna's Hummingbird (hybrid)
Costa's Hummingbird
Anna's x Costa's Hummingbird (hybrid)
Calliope Hummingbird
Rufous Hummingbird
Black-chinned x Rufous Hummingbird (hybrid)
Anna's x Rufous Hummingbird (hybrid)
Allen's Hummingbird
Rufous x Allen's Hummingbird (hybrid)
Rufous/Allen's Hummingbird
Broad-tailed Hummingbird
Anna's Hummingbird x Selasphorus sp. (hybrid)
Selasphorus sp.
Broad-billed Hummingbird
hummingbird sp.
Rails, Gallinules, and Allies
Virginia Rail
Sora
Common Gallinule
American Coot
moorhen/coot/gallinule sp.
Yellow Rail
rail/crake sp.
Cranes
Sandhill Crane
Common Crane
Shorebirds
Black-necked Stilt
American Avocet
Black Oystercatcher
Black-bellied Plover
American Golden-Plover
Pacific Golden-Plover
American/Pacific Golden-Plover (Lesser Golden-Plover)
golden-plover sp.
Black-bellied Plover/golden-plover sp.
Eurasian Dotterel
Killdeer
Semipalmated Plover
Common Ringed/Semipalmated Plover
Piping Plover
Siberian Sand-Plover
Wilson's Plover
Mountain Plover
Snowy Plover
small plover sp.
plover sp.
Upland Sandpiper
Bristle-thighed Curlew
Whimbrel
Long-billed Curlew
curlew sp.
Bar-tailed Godwit
Hudsonian Godwit
Marbled Godwit
Hudsonian/Marbled Godwit
godwit sp.
Short-billed Dowitcher
Long-billed Dowitcher
Short-billed/Long-billed Dowitcher
Jack Snipe
Wilson's Snipe
snipe sp.
Wilson's Phalarope
Red Phalarope
Red-necked Phalarope
Red/Red-necked Phalarope
phalarope sp.
Spotted Sandpiper
Solitary Sandpiper
Wandering Tattler
Wood Sandpiper
Lesser Yellowlegs
Willet
Spotted Redshank
Greater Yellowlegs
Lesser/Greater Yellowlegs
Tringa sp.
Ruddy Turnstone
Black Turnstone
Great Knot
Red Knot
Surfbird
Ruff
Sharp-tailed Sandpiper
Curlew Sandpiper
Stilt Sandpiper
Long-toed Stint
Red-necked Stint
Buff-breasted Sandpiper
Sanderling
Dunlin
Rock Sandpiper
Baird's Sandpiper
Little Stint
White-rumped Sandpiper
Least Sandpiper
Pectoral Sandpiper
Sharp-tailed/Pectoral Sandpiper
Western Sandpiper
Semipalmated Sandpiper
Western/Semipalmated Sandpiper
peep sp.
Calidris sp.
Scolopacidae sp.
large shorebird sp.
shorebird sp.
Skuas and Jaegers
Long-tailed Jaeger
Parasitic Jaeger
Long-tailed/Parasitic Jaeger
Pomarine Jaeger
Parasitic/Pomarine Jaeger
South Polar Skua
jaeger sp.
jaeger/skua sp.
Alcids
Rhinoceros Auklet
Tufted Puffin
Horned Puffin
puffin sp.
Cassin's Auklet
Parakeet Auklet
auklet sp.
Long-billed Murrelet
Marbled Murrelet
Pigeon Guillemot
Thick-billed Murre
Common Murre
Thick-billed/Common Murre
large alcid sp.
Ancient Murrelet
Scripps's Murrelet
Guadalupe Murrelet
Scripps's/Guadalupe Murrelet (Xantus's Murrelet)
Scripps's/Craveri's Murrelet
Scripps's/Guadalupe/Craveri's Murrelet
murrelet sp.
alcid sp.
Gulls, Terns, and Skimmers
Little Gull
Ross's Gull
Black-legged Kittiwake
Red-legged Kittiwake
Sabine's Gull
Bonaparte's Gull
Black-headed Gull
Laughing Gull
Franklin's Gull
Heermann's Gull
Short-billed Gull
Common/Short-billed Gull
Ring-billed Gull
Western Gull
Herring Gull
Glaucous Gull
Herring x Glaucous Gull (hybrid)
Lesser Black-backed Gull
California Gull
Glaucous-winged Gull
Western x Glaucous-winged Gull (hybrid)
Herring x Glaucous-winged Gull (hybrid)
Glaucous x Glaucous-winged Gull (hybrid)
Western/Glaucous-winged Gull
Slaty-backed Gull
Iceland Gull
Herring/Iceland Gull
white-winged gull sp.
Larus sp.
gull sp.
Black Skimmer
Least Tern
Caspian Tern
Black Tern
Forster's Tern
Arctic Tern
Common Tern
Forster's/Common Tern
Common/Arctic Tern
Sterna sp.
Elegant Tern
large tern sp.
tern sp.
gull/tern sp.
Tropicbirds
Red-billed Tropicbird
Loons
Red-throated Loon
Arctic Loon
Pacific Loon
Common Loon
Yellow-billed Loon
Common/Yellow-billed Loon
loon sp.
Albatrosses
Antipodean Albatross
Laysan Albatross
Black-footed Albatross
Laysan x Black-footed Albatross (hybrid)
Short-tailed Albatross
White-capped Albatross
albatross sp.
Storm-Petrels
Wilson's Storm-Petrel
Fork-tailed Storm-Petrel
Leach's Storm-Petrel
Ashy Storm-Petrel
Black Storm-Petrel
storm-petrel sp. (dark-rumped)
storm-petrel sp. (white-rumped)
storm-petrel sp.
Petrels, Shearwaters, and Diving-Petrels
Northern Fulmar
Murphy's Petrel
Mottled Petrel
Juan Fernandez Petrel
Hawaiian Petrel
Galapagos/Hawaiian Petrel (Dark-rumped Petrel)
Cook's Petrel
Stejneger's Petrel
Cookilaria petrel sp.
Pterodroma sp.
Procellaria sp.
Streaked Shearwater
Pink-footed Shearwater
Flesh-footed Shearwater
Great Shearwater
Wedge-tailed Shearwater
Buller's Shearwater
Sooty Shearwater
Short-tailed Shearwater
Sooty/Short-tailed Shearwater
Manx Shearwater
Black-vented Shearwater
black-and-white shearwater sp.
shearwater sp.
procellariid sp.
Frigatebirds, Boobies, and Gannets
Magnificent Frigatebird
frigatebird sp.
Red-footed Booby
Brown Booby
Nazca Booby
Masked/Nazca Booby
Blue-footed Booby
booby sp.
Cormorants and Anhingas
Brandt's Cormorant
Pelagic Cormorant
Double-crested Cormorant
Double-crested x Neotropic Cormorant (hybrid)
Double-crested/Neotropic Cormorant
cormorant sp.
Pelicans
American White Pelican
Brown Pelican
Herons, Ibis, and Allies
American Bittern
Least Bittern
Black-crowned Night Heron
Little Blue Heron
Tricolored Heron
Snowy Egret
Green Heron
Western Cattle Egret
Great Egret
Great/Medium Egret
Great Blue Heron
heron sp.
white egret sp.
White Ibis
Glossy Ibis
White-faced Ibis
Glossy/White-faced Ibis
ibis sp.
Vultures, Hawks, and Allies
Black Vulture
Turkey Vulture
Osprey
White-tailed Kite
Golden Eagle
Northern Harrier
Sharp-shinned Hawk
Cooper's Hawk
Sharp-shinned/Cooper's Hawk
American Goshawk
Cooper's Hawk/American Goshawk
Accipiter sp.
Bald Eagle
Golden/Bald Eagle
Harris's Hawk
Red-shouldered Hawk
Broad-winged Hawk
Swainson's Hawk
Zone-tailed Hawk
Red-tailed Hawk
Rough-legged Hawk
Ferruginous Hawk
Buteo sp.
Buteo/eagle sp.
hawk sp.
eagle sp.
Owls
Barn Owl
Flammulated Owl
Western Screech-Owl
Snowy Owl
Great Horned Owl
Northern Hawk Owl
Northern Pygmy-Owl
Burrowing Owl
Spotted Owl
Barred Owl
Spotted x Barred Owl (hybrid)
Spotted/Barred Owl
Great Gray Owl
Strix sp.
Long-eared Owl
Short-eared Owl
Long-eared/Short-eared Owl
Asio sp.
Boreal Owl
Northern Saw-whet Owl
pygmy-owl/saw-whet owl sp.
owl sp.
Kingfishers
Belted Kingfisher
Woodpeckers
Williamson's Sapsucker
Yellow-bellied Sapsucker
Red-naped Sapsucker
Yellow-bellied x Red-naped Sapsucker (hybrid)
Yellow-bellied/Red-naped Sapsucker
Red-breasted Sapsucker
Red-naped x Red-breasted Sapsucker (hybrid)
Red-naped/Red-breasted Sapsucker
sapsucker sp.
Lewis's Woodpecker
Red-headed Woodpecker
Acorn Woodpecker
Red-bellied Woodpecker
American Three-toed Woodpecker
Black-backed Woodpecker
American Three-toed/Black-backed Woodpecker
Downy Woodpecker
Nuttall's Woodpecker
Hairy Woodpecker
Downy/Hairy Woodpecker
White-headed Woodpecker
Dryobates sp.
Pileated Woodpecker
Northern Flicker
woodpecker sp.
Falcons and Caracaras
Crested Caracara
American Kestrel
Merlin
Lanner Falcon
Gyrfalcon
Peregrine Falcon
Prairie Falcon
large falcon sp.
small falcon sp.
falcon sp.
diurnal raptor sp.
Cockatoos
Cockatiel
Yellow-crested Cockatoo
Parrots, Parakeets, and Allies
Budgerigar
Rosy-faced Lovebird
Gray Parrot
Monk Parakeet
large parakeet sp. (former Aratinga sp.)
parakeet sp.
parrot sp.
Tyrant Flycatchers: Pewees, Kingbirds, and Allies
Olive-sided Flycatcher
Western Wood-Pewee
Eastern Wood-Pewee
Western/Eastern Wood-Pewee
pewee sp. (Contopus sp.)
Yellow-bellied Flycatcher
Alder Flycatcher
Willow Flycatcher
Alder/Willow Flycatcher (Traill's Flycatcher)
Least Flycatcher
Hammond's Flycatcher
Gray Flycatcher
Dusky Flycatcher
Hammond's/Dusky Flycatcher
Gray/Dusky Flycatcher
Western Flycatcher
Empidonax sp.
Black Phoebe
Eastern Phoebe
Black x Eastern Phoebe (hybrid)
Say's Phoebe
phoebe sp.
Vermilion Flycatcher
Dusky-capped Flycatcher
Ash-throated Flycatcher
Great Crested Flycatcher
Myiarchus sp.
Tropical Kingbird
Tropical/Couch's Kingbird
Cassin's Kingbird
Western Kingbird
yellow-bellied kingbird sp.
Eastern Kingbird
Western x Eastern Kingbird (hybrid)
Scissor-tailed Flycatcher
new world flycatcher sp.
Vireos
White-eyed Vireo
Bell's Vireo
Hutton's Vireo
Yellow-throated Vireo
Cassin's Vireo
Blue-headed Vireo
Plumbeous Vireo
Cassin's/Plumbeous Vireo
solitary vireo sp.
Philadelphia Vireo
Warbling Vireo
Philadelphia/Warbling Vireo
Red-eyed Vireo
vireo sp.
Shrikes
Loggerhead Shrike
Northern Shrike
Loggerhead/Northern Shrike
shrike sp.
Jays, Magpies, Crows, and Ravens
Canada Jay
Pinyon Jay
Steller's Jay
Blue Jay
California Scrub-Jay
Woodhouse's Scrub-Jay
California/Woodhouse's Scrub-Jay
jay sp.
Black-billed Magpie
Clark's Nutcracker
American Crow
Common Raven
crow/raven sp.
corvid sp.
Tits, Chickadees, and Titmice
Black-capped Chickadee
Mountain Chickadee
Black-capped x Mountain Chickadee (hybrid)
Black-capped/Mountain Chickadee
Chestnut-backed Chickadee
chickadee sp.
Oak Titmouse
Juniper Titmouse
Oak/Juniper Titmouse (Plain Titmouse)
Larks
Horned Lark
Eurasian Skylark
Martins and Swallows
Bank Swallow
Tree Swallow
Violet-green Swallow
Tree/Violet-green Swallow
Tachycineta sp.
Purple Martin
Northern Rough-winged Swallow
Barn Swallow
Cliff Swallow
Barn x Cliff Swallow (hybrid)
Cave Swallow
Cliff/Cave Swallow
swallow sp.
Leaf Warblers
Dusky Warbler
Arctic/Kamchatka Leaf Warbler
Japanese Leaf/Arctic/Kamchatka Leaf Warbler
Phylloscopus sp.
Long-tailed Tits and Bushtit
Bushtit
Parrotbills, Wrentit, and Allies
Wrentit
White-eyes, Yuhinas, and Allies
white-eye sp.
Kinglets
Ruby-crowned Kinglet
Golden-crowned Kinglet
Ruby-crowned/Golden-crowned Kinglet
Nuthatches
White-breasted Nuthatch
Pygmy Nuthatch
Red-breasted Nuthatch
nuthatch sp.
Treecreepers
Brown Creeper
Gnatcatchers
Blue-gray Gnatcatcher
Wrens
Rock Wren
Canyon Wren
House Wren
Pacific Wren
Winter Wren
Pacific/Winter Wren
Sedge Wren
Marsh Wren
Bewick's Wren
wren sp.
Dippers
American Dipper
Starlings and Mynas
European Starling
Catbirds, Mockingbirds, and Thrashers
Gray Catbird
Curve-billed Thrasher
Brown Thrasher
California Thrasher
Sage Thrasher
Northern Mockingbird
Thrushes
Eastern Bluebird
Western Bluebird
Mountain Bluebird
Western x Mountain Bluebird (hybrid)
bluebird sp.
Townsend's Solitaire
Varied Thrush
Veery
Gray-cheeked Thrush
Swainson's Thrush
Hermit Thrush
Catharus sp.
Wood Thrush
American Robin
Varied Thrush/American Robin
Dusky Thrush
Turdus sp.
thrush sp.
Old World Flycatchers
Red-flanked Bluetail
Northern Wheatear
Waxwings
Bohemian Waxwing
Cedar Waxwing
Bohemian/Cedar Waxwing
Silky-flycatchers
Phainopepla
Weavers and Allies
Northern Red Bishop
Estrildids
Zebra Finch
Scaly-breasted Munia
Old World Sparrows
House Sparrow
Passer sp.
Wagtails and Pipits
Eastern Yellow Wagtail
White Wagtail
Red-throated Pipit
American Pipit
Sprague's Pipit
pipit sp.
Finches, Euphonias, and Allies
Brambling
Evening Grosbeak
Pine Grosbeak
Gray-crowned Rosy-Finch
Black Rosy-Finch
rosy-finch sp.
House Finch
Purple Finch
House/Purple Finch
Cassin's Finch
Purple/Cassin's Finch
Haemorhous sp.
Oriental Greenfinch
Common Redpoll
Hoary Redpoll
Common/Hoary Redpoll
redpoll sp.
Red Crossbill
White-winged Crossbill
crossbill sp.
European Goldfinch
Pine Siskin
Lesser Goldfinch
Lawrence's Goldfinch
American Goldfinch
Lesser x American Goldfinch (hybrid)
new world goldfinch sp.
Spinus sp.
Acanthis/Spinus sp.
finch sp.
Longspurs and Snow Buntings
Lapland Longspur
Chestnut-collared Longspur
Smith's Longspur
Thick-billed Longspur
longspur sp.
Snow Bunting
McKay's Bunting
Snow/McKay's Bunting
Old World Buntings
Little Bunting
Rustic Bunting
New World Sparrows
Cassin's Sparrow
Grasshopper Sparrow
Chipping Sparrow
Clay-colored Sparrow
Black-chinned Sparrow
Field Sparrow
Brewer's Sparrow
Spizella sp.
Black-throated Sparrow
Lark Sparrow
Lark Bunting
American Tree Sparrow
Spizella sp./American Tree Sparrow
Fox Sparrow
Dark-eyed Junco
White-crowned Sparrow
Golden-crowned Sparrow
White-crowned x Golden-crowned Sparrow (hybrid)
Harris's Sparrow
White-throated Sparrow
White-crowned x White-throated Sparrow (hybrid)
Golden-crowned x White-throated Sparrow (hybrid)
Zonotrichia sp.
Sagebrush Sparrow
Sagebrush/Bell's Sparrow (Sage Sparrow)
Vesper Sparrow
LeConte's Sparrow
Savannah Sparrow
Song Sparrow
Lincoln's Sparrow
Swamp Sparrow
Lincoln's/Swamp Sparrow
California Towhee
Green-tailed Towhee
Spotted Towhee
Eastern Towhee
Spotted/Eastern Towhee (Rufous-sided Towhee)
towhee sp.
new world sparrow sp.
Yellow-breasted Chat
Yellow-breasted Chat
Blackbirds
Yellow-headed Blackbird
Bobolink
Western Meadowlark
Western/Eastern Meadowlark
Orchard Oriole
Hooded Oriole
Streak-backed Oriole
Bullock's Oriole
Baltimore Oriole
Bullock's/Baltimore Oriole
Scott's Oriole
new world oriole sp.
Red-winged Blackbird
Tricolored Blackbird
Red-winged/Tricolored Blackbird
Brown-headed Cowbird
Rusty Blackbird
Brewer's Blackbird
Rusty/Brewer's Blackbird
Common Grackle
Great-tailed Grackle
grackle sp.
blackbird sp.
Wood-Warblers
Ovenbird
Worm-eating Warbler
Louisiana Waterthrush
Northern Waterthrush
Golden-winged Warbler
Blue-winged Warbler
Brewster's Warbler (hybrid)
Black-and-white Warbler
Prothonotary Warbler
Tennessee Warbler
Orange-crowned Warbler
Lucy's Warbler
Nashville Warbler
Virginia's Warbler
Leiothlypis sp.
MacGillivray's Warbler
Mourning Warbler
MacGillivray's/Mourning Warbler
Kentucky Warbler
Common Yellowthroat
MacGillivray's Warbler x Common Yellowthroat (hybrid)
Hooded Warbler
American Redstart
Cape May Warbler
Northern Parula
Magnolia Warbler
Bay-breasted Warbler
Blackburnian Warbler
Yellow Warbler
Chestnut-sided Warbler
Blackpoll Warbler
Black-throated Blue Warbler
Palm Warbler
Pine Warbler
Yellow-rumped Warbler
Yellow-throated Warbler
Prairie Warbler
Black-throated Gray Warbler
Townsend's Warbler
Yellow-rumped x Townsend's Warbler (hybrid)
Black-throated Gray/Townsend's Warbler
Hermit Warbler
Townsend's x Hermit Warbler (hybrid)
Black-throated Gray/Hermit Warbler
Townsend's/Hermit Warbler
Black-throated Green Warbler
Townsend's x Black-throated Green Warbler (hybrid)
Setophaga sp.
Canada Warbler
Wilson's Warbler
Painted Redstart
new world warbler sp.
Cardinals, Grosbeaks, and Allies
Summer Tanager
Scarlet Tanager
Western Tanager
Summer x Western Tanager (hybrid)
Pyrrhuloxia
Rose-breasted Grosbeak
Black-headed Grosbeak
Rose-breasted x Black-headed Grosbeak (hybrid)
Rose-breasted/Black-headed Grosbeak
Blue Grosbeak
Lazuli Bunting
Indigo Bunting
Lazuli x Indigo Bunting (hybrid)
Lazuli/Indigo Bunting
Painted Bunting
Passerina sp.
Dickcissel
Others
passerine sp.
bird sp.