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species
526.
species
528.
species
529.
species
531.
species
535.
species
541.
species
542.
species
547.
species
548.
species
553.
species
555.
species
556.
species
557.
species
563.
species
566.
species
572.
species
573.
species
574.
species
580.
species
585.
species
587.
species
608.
species
610.
species
613.
species
615.
species
628.
species
632.
species
634.
species
636.
species
637.
species
640.
species
642.
species
643.
species
647.
species
649.
species
663.
species
674.
species
678.
species
683.
species
693.
species
695.
species
701.
species
705.
species
736.
species
759.
species
767.
species
779.
species
812.
species
829.
species
830.
species
845.
species
853.
species
862.
species
873.
species
905.
species
907.
species
908.
species
917.
species
931.
species
938.
species
965.
species
970.
species
1006.
species
1046.
species
1070.
species
1080.
species
1122.
species
1123.
species
1124.
species
1125.
species
1126.
species
1127.
species
1129.
species
1130.
species
1131.
species
1132.
species
1133.
species
1134.
species
1135.
species
1136.
species
1137.
species
1138.
species
1139.
species
1140.
species
1145.
species
1152.
Curlew x Pectoral Sandpiper (hybrid)
Nuttall's x Hairy Woodpecker (hybrid)
Tree x Barn Swallow (hybrid)
Mountain x Boreal Chickadee (hybrid)
Black-tailed x Black-capped Gnatcatcher (hybrid)
Brewer's Blackbird x Great-tailed Grackle (hybrid)
Herring x Iceland Gull (hybrid)
Swainson's x Rough-legged Hawk (hybrid)
Hepatic x Flame-colored Tanager (hybrid)
Gray-crowned x Common Yellowthroat (hybrid)
Common Yellowthroat x Yellow Warbler (hybrid)
Grace's x Black-throated Gray Warbler (hybrid)
Song x Swamp Sparrow (hybrid)
Common x Roseate Tern (hybrid)
Veery x Bicknell's Thrush (hybrid)
Philadelphia x Red-eyed Vireo (hybrid)
Violet-green x Cliff Swallow (hybrid)
Tree x Violet-green Swallow (hybrid)
Lucifer x Anna's Hummingbird (hybrid)
Thick-billed x Common Murre (hybrid)
Violet-green x Northern Rough-winged Swallow (hybrid)
Great Knot x Surfbird (hybrid)
Red Crossbill x Pine Siskin (hybrid)
Dusky x Sharp-tailed Grouse (hybrid)
Common Yellowthroat x Rufous-capped Warbler (hybrid)
Wood Duck x Hooded Merganser (hybrid)
Brant x Cackling Goose (hybrid)
Blue-winged x Prairie Warbler (hybrid)
Ruby-throated x Broad-tailed Hummingbird (hybrid)
Tropical x Northern Mockingbird (hybrid)
Clay-colored x Brewer's Sparrow (hybrid)
Sandhill x Whooping Crane (hybrid)
Couch's x Western Kingbird (hybrid)
White-winged x Yellow-chevroned Parakeet (hybrid)
Warbling x Red-eyed Vireo (hybrid)
Calliope x Broad-tailed Hummingbird (hybrid)
Painted x Slate-throated Redstart (hybrid)
Surf x White-winged Scoter (hybrid)
Mallard x Redhead (hybrid)
Peregrine x Prairie Falcon (hybrid)
Yellow-rumped x Black-throated Gray Warbler (hybrid)
Hooded x Yellow Warbler (hybrid)
Common x Hoary Redpoll (hybrid)
Western x Eastern Screech-Owl (hybrid)
Yellow-rumped x Yellow-throated Warbler (hybrid)
Cliff x Cave Swallow (hybrid)
Snow x McKay's Bunting (hybrid)
Spectacled x King Eider (hybrid)
Northern Bobwhite x Scaled Quail (hybrid)
Ring-necked x Tufted Duck (hybrid)
American Wigeon x American Black Duck (hybrid)
Chestnut-sided x Black-throated Blue Warbler (hybrid)
Chipping x Clay-colored Sparrow (hybrid)
Cape May x Yellow-rumped Warbler (hybrid)
Lesser x American Goldfinch (hybrid)
King x Common Eider (hybrid)
Emperor x Cackling Goose (hybrid)
Magnolia x Palm Warbler (hybrid)
Summer x Scarlet Tanager (hybrid)
Scarlet Tanager x Rose-breasted Grosbeak (hybrid)
Rufous x Broad-tailed Hummingbird (hybrid)
House x Fish Crow (hybrid)
Crimson x Eastern Rosella (hybrid)
Western x Eastern Wood-Pewee (hybrid)
Costa's x Broad-billed Hummingbird (hybrid)
Palm x Yellow-rumped Warbler (hybrid)
American Redstart x Yellow Warbler (hybrid)
Chipping x Field Sparrow (hybrid)
Yellow x Black-throated Blue Warbler (hybrid)
Red-shouldered x Broad-winged Hawk (hybrid)
Emperor x Greater White-fronted Goose (hybrid)
Eurasian Wigeon x Northern Pintail (hybrid)
Canvasback x scaup sp. (hybrid)
Mallard x Eastern Spot-billed Duck (hybrid)
Anna's x Calliope Hummingbird (hybrid)
Black x Say's Phoebe (hybrid)
Greater Sage-Grouse x Sharp-tailed Grouse (hybrid)
Redhead x Greater Scaup (hybrid)
Western x Eastern Meadowlark (hybrid)
Black-chinned x Rufous Hummingbird (hybrid)
Yellow x Prairie Warbler (hybrid)
Mourning Warbler x Common Yellowthroat (hybrid)
MacGillivray's x Mourning Warbler (hybrid)
Yellow-crowned x Black-crowned Night Heron (hybrid)
American Redstart x Northern Parula (hybrid)
Glaucous x Slaty-backed Gull (hybrid)
Northern Bobwhite x California Quail (hybrid)
Green-tailed x Spotted Towhee (hybrid)
Kentucky Warbler x Common Yellowthroat (hybrid)
Clay-colored x Field Sparrow (hybrid)
Ruddy x Common Shelduck (hybrid)
Common Gallinule x American Coot (hybrid)
Great Black-backed x Glaucous Gull (hybrid)
Rivoli's x Berylline Hummingbird (hybrid)
Sandhill x Common Crane (hybrid)
Northern Shoveler x American Wigeon (hybrid)
Blue-and-yellow x Scarlet Macaw (hybrid)
Mountain x Chestnut-backed Chickadee (hybrid)
Indigo x Painted Bunting (hybrid)
Gadwall x Green-winged Teal (hybrid)
Curve-billed x Long-billed Thrasher (hybrid)
Little Blue x Tricolored Heron (hybrid)
House x Purple Finch (hybrid)
Ross's x Greater White-fronted Goose (hybrid)
Grasshopper x Savannah Sparrow (hybrid)
Anna's Hummingbird x Selasphorus sp. (hybrid)
California x Crissal Thrasher (hybrid)
Eastern x Mountain Bluebird (hybrid)
Varied x Painted Bunting (hybrid)
Cerulean Warbler x Northern Parula (hybrid)
Blue-winged Teal x American Wigeon (hybrid)
Dunlin x White-rumped Sandpiper (hybrid)
Lucifer x Costa's Hummingbird (hybrid)
Dark-eyed x Yellow-eyed Junco (hybrid)
Buff-breasted x White-rumped Sandpiper (hybrid)
Yellow-breasted Chat x new world oriole sp. (hybrid)
Anna's x Rufous Hummingbird (hybrid)
Brown x Blue-footed Booby (hybrid)
Tricolored Heron x Snowy Egret (hybrid)
Graylag x Swan Goose (hybrid)
Tropical x Gray Kingbird (hybrid)
Yellow-throated x Blue-headed Vireo (hybrid)
Nelson's x Saltmarsh Sparrow (hybrid)
Summer x Western Tanager (hybrid)
Golden x Lady Amherst's Pheasant (hybrid)
Couch's Kingbird x Scissor-tailed Flycatcher (hybrid)
White x Scarlet Ibis (hybrid)
Black-chinned x Costa's Hummingbird (hybrid)
Hairy x White-headed Woodpecker (hybrid)
Mallard x Ring-necked Duck (hybrid)
Boat-tailed x Great-tailed Grackle (hybrid)
Black-bellied x Fulvous Whistling-Duck (hybrid)
Western x Mountain Bluebird (hybrid)
Dark-eyed Junco x White-crowned Sparrow (hybrid)
Trumpeter x Whooper Swan (hybrid)
Mute x Whooper Swan (hybrid)
Common x Great-tailed Grackle (hybrid)
Trumpeter x Tundra Swan (hybrid)
Barrow's Goldeneye x Hooded Merganser (hybrid)
Ladder-backed x Hairy Woodpecker (hybrid)
MacGillivray's Warbler x Common Yellowthroat (hybrid)
Steller's Jay x Woodhouse's Scrub-Jay (hybrid)
Black-throated Gray x Hermit Warbler (hybrid)
Redhead x Lesser Scaup (hybrid)
Cape May x Magnolia Warbler (hybrid)
Greater x Lesser Prairie-Chicken (hybrid)
Sharp-tailed Grouse x Greater Prairie-Chicken (hybrid)
Northern Parula x Yellow-throated Warbler (hybrid)
Black-capped x White-eyed Vireo (hybrid)
White-crowned x Harris's Sparrow (hybrid)
Yellow-rumped x Grace's Warbler (hybrid)
Snowy x Little Egret (hybrid)
Downy x Ladder-backed Woodpecker (hybrid)
Spotted x Barred Owl (hybrid)
Pine Siskin x American Goldfinch (hybrid)
Western x Eastern Kingbird (hybrid)
King x Clapper Rail (hybrid)
Bay-breasted x Blackpoll Warbler (hybrid)
Western x Chihuahuan Meadowlark (hybrid)
Northern Parula x Black-throated Gray Warbler (hybrid)
Common x Arctic Tern (hybrid)
Colima x Virginia's Warbler (hybrid)
Great Egret x Great Blue Heron (hybrid)
Rufous x Allen's Hummingbird (hybrid)
Black-chinned x Broad-billed Hummingbird (hybrid)
Barn x Cave Swallow (hybrid)
Yellow-bellied x Red-breasted Sapsucker (hybrid)
Herring x California Gull (hybrid)
Little Blue Heron x Snowy Egret (hybrid)
Black-chinned x Calliope Hummingbird (hybrid)
Barn x Cliff Swallow (hybrid)
Sandwich x Elegant Tern (hybrid)
Calliope x Rufous Hummingbird (hybrid)
Bahama x Northern Mockingbird (hybrid)
Rose-breasted x Black-headed Grosbeak (hybrid)
Black-chinned x Anna's Hummingbird (hybrid)
Black-chinned x Broad-tailed Hummingbird (hybrid)
Lucifer x Black-chinned Hummingbird (hybrid)
Glaucous-winged x Slaty-backed Gull (hybrid)
Western x Flame-colored Tanager (hybrid)
Broad-billed x Violet-crowned Hummingbird (hybrid)
Ruby-throated x Black-chinned Hummingbird (hybrid)
Lawrence's Warbler (hybrid)
Herring x Slaty-backed Gull (hybrid)
Townsend's x Black-throated Green Warbler (hybrid)
Brewster's Warbler (hybrid)
Golden-winged x Blue-winged Warbler (hybrid)
Gadwall x Northern Pintail (hybrid)
Yellow-rumped x Hermit Warbler (hybrid)
Mallard x Pacific Black Duck (hybrid)
Black-throated Gray x Townsend's Warbler (hybrid)
Anna's x Allen's Hummingbird (hybrid)
Lazuli x Indigo Bunting (hybrid)
Double-crested x Neotropic Cormorant (hybrid)
American Wigeon x Northern Pintail (hybrid)
Eurasian x African Collared-Dove (hybrid)
Kelp x Herring Gull (hybrid)
Eurasian Collared-Dove x Mourning Dove (hybrid)
Northern x Gilded Flicker (hybrid)
Steller's x Blue Jay (hybrid)
Bufflehead x Hooded Merganser (hybrid)
Golden-crowned x White-throated Sparrow (hybrid)
Mountain x Mexican Chickadee (hybrid)
Canyon x Spotted Towhee (hybrid)
Mute x Trumpeter Swan (hybrid)
Northern Pintail x Green-winged Teal (hybrid)
Gadwall x American Wigeon (hybrid)
Gray-crowned x Black Rosy-Finch (hybrid)
Fischer's x Yellow-collared Lovebird (hybrid)
Black-headed x Ring-billed Gull (hybrid)
goldeneye sp. x Hooded Merganser (hybrid)
Red-crowned x Red-lored Parrot (hybrid)
Red-whiskered x Red-vented Bulbul (hybrid)
Tufted Duck x Lesser Scaup (hybrid)
Mallard x Green-winged Teal (hybrid)
Greater White-fronted x Cackling/Canada Goose (hybrid)
Yellow-rumped x Townsend's Warbler (hybrid)
Golden-fronted x Red-bellied Woodpecker (hybrid)
Barnacle x Cackling Goose (hybrid)
Canyon x Abert's Towhee (hybrid)
White-crowned x White-throated Sparrow (hybrid)
Barnacle x Canada Goose (hybrid)
California x Gambel's Quail (hybrid)
House x Eurasian Tree Sparrow (hybrid)
Hooded x Common Merganser (hybrid)
Blue-winged x Green-winged Teal (hybrid)
Redhead x scaup sp. (hybrid)
Dark-eyed Junco x White-throated Sparrow (hybrid)
Canvasback x Ring-necked Duck (hybrid)
Scaled x Gambel's Quail (hybrid)
Red-crowned x Lilac-crowned Parrot (hybrid)
Ross's x Canada Goose (hybrid)
Bufflehead x goldeneye sp. (hybrid)
Common Goldeneye x Hooded Merganser (hybrid)
Northern Cardinal x Pyrrhuloxia (hybrid)
Ross's x Cackling Goose (hybrid)
Greater White-fronted x Cackling Goose (hybrid)
Herring x Glaucous Gull (hybrid)
Common Black x Red-shouldered Hawk (hybrid)
White-crowned x Golden-crowned Sparrow (hybrid)
Redhead x Ring-necked Duck (hybrid)
Townsend's x Hermit Warbler (hybrid)
Spotted x Eastern Towhee (hybrid)
Red-tailed x Rough-legged Hawk (hybrid)
White x Salmon-crested Cockatoo (hybrid)
Ring-necked Duck x scaup sp. (hybrid)
Glossy x White-faced Ibis (hybrid)
Herring x Lesser Black-backed Gull (hybrid)
Red-shouldered x Red-tailed Hawk (hybrid)
Red-tailed x Ferruginous Hawk (hybrid)
Canvasback x Redhead (hybrid)
Laysan x Black-footed Albatross (hybrid)
Northern x Tropical Parula (hybrid)
Mallard x Mexican/Mottled Duck (hybrid)
Magnolia x Yellow-rumped Warbler (hybrid)
Herring x Great Black-backed Gull (hybrid)
Snow x Canada Goose (hybrid)
Northern Shoveler x Mallard (hybrid)
Snow/Ross's x Cackling/Canada Goose (hybrid)
Western Kingbird x Scissor-tailed Flycatcher (hybrid)
Bullock's x Baltimore Oriole (hybrid)
Downy x Nuttall's Woodpecker (hybrid)
Anna's x Costa's Hummingbird (hybrid)
Yellow-bellied x Red-naped Sapsucker (hybrid)
Ring-necked Duck x Lesser Scaup (hybrid)
Snow x Greater White-fronted Goose (hybrid)
American Wigeon x Green-winged Teal (hybrid)
Red-naped x Red-breasted Sapsucker (hybrid)
Cinnamon x Green-winged Teal (hybrid)
Anna's x Broad-billed Hummingbird (hybrid)
Cinnamon Teal x Northern Shoveler (hybrid)
Snow Goose x Brant (hybrid)
Ring-necked Duck x Greater Scaup (hybrid)
Tufted Duck x Greater Scaup (hybrid)
Black-capped x Mountain Chickadee (hybrid)
Greater White-fronted x Canada Goose (hybrid)
Snow x Cackling Goose (hybrid)
Northern Shoveler x Gadwall (hybrid)
Nuttall's x Ladder-backed Woodpecker (hybrid)
Yellow-bellied/Red-naped x Red-breasted Sapsucker (hybrid)
Gadwall x Mallard (hybrid)
Laughing x Ring-billed Gull (hybrid)
Mallard x Northern Pintail (hybrid)
Altamira x Audubon's Oriole (hybrid)
Wood Duck x Mallard (hybrid)
Downy x Hairy Woodpecker (hybrid)
Blue-winged Teal x Northern Shoveler (hybrid)
Bufflehead x Common Goldeneye (hybrid)
Black x Eastern Phoebe (hybrid)
Common x Barrow's Goldeneye (hybrid)
Western x Clark's Grebe (hybrid)
Glaucous x Glaucous-winged Gull (hybrid)
Eurasian x American Wigeon (hybrid)
Snow x Ross's Goose (hybrid)
American x Black Oystercatcher (hybrid)
Swan Goose x Canada Goose (hybrid)
Mexican x Mottled Duck (hybrid)
Tufted Duck x scaup sp. (hybrid)
Mallard x Hawaiian Duck (hybrid)
Herring x Glaucous-winged Gull (hybrid)
Muscovy Duck x Mallard (hybrid)
Graylag x Canada Goose (hybrid)
Mallard x Mexican Duck (hybrid)
Domestic goose sp. x Canada Goose (hybrid)
Western x Glaucous-winged Gull (hybrid)
Blue-winged x Cinnamon Teal (hybrid)
Mallard x American Black Duck (hybrid)
American Wigeon x Mallard (hybrid)
Tufted x Black-crested Titmouse (hybrid)
Carolina x Black-capped Chickadee (hybrid)
Mallard x Mottled Duck (hybrid)
hornbill sp.
Snowy/Tristan/Antipodean Albatross
Timaliidae sp.
large toucan sp.
Tree/Olive-backed Pipit
rainbow lorikeet sp.
Snowy/Kentish Plover
Streaked/Sulphur-bellied Flycatcher
Dusky/Naumann's Thrush
Siberian/Amur Stonechat
Morelet's/Cinnamon-rumped Seedeater
Eurasian/Oriental Skylark
White-capped/Salvin's/Chatham Albatross
Trindade/Herald Petrel
Western/Eastern Yellow Wagtail
Sporophila sp.
small albatross sp.
Greater/Gunnison Sage-Grouse
Euplectes sp.
Geranoaetus/Buteo sp.
Serinus sp.
Chlidonias sp.
large albatross sp.
cordonbleu sp.
waxbill sp.
Myioborus sp.
Glaucidium sp.
Galapagos/Hawaiian Petrel (Dark-rumped Petrel)
paradise-whydah sp.
Procellaria sp.
Northern/Great Gray Shrike
Garganey/Green-winged Teal
Tropical/Northern Mockingbird
Mississippi/Plumbeous Kite
white-eye sp.
Ash-throated/Nutting's Flycatcher
Great/Medium Egret
Velvet/White-winged/Stejneger's Scoter
Black-throated/White-throated Magpie-Jay
small bittern sp.
Gray-streaked/Dark-sided Flycatcher
Forpus sp.
Arctic/Kamchatka Leaf Warbler
Bank Swallow/Pale Martin
Japanese Leaf/Arctic/Kamchatka Leaf Warbler
coot sp.
Ploceus sp.
Yellow-legged/Lesser Black-backed Gull
Lesser/Greater Roadrunner
Vidua sp.
myna/starling sp.
elaenia sp. (genus Elaenia)
Hydrobates sp. (Band-rumped complex)
Black-throated Gray/Townsend's/Hermit Warbler
Red-legged/Rock Partridge
Patagioenas sp.
swamphen sp.
Greater/Lesser White-fronted Goose
large macaw sp.
Zosterops sp.
Red-billed/Red-tailed Tropicbird
Shiny/Bronzed Cowbird
lovebird sp.
stilt/avocet sp.
Ridgway's/Mangrove/Clapper Rail
Cathartes sp.
Tundra/Whooper Swan
old world warbler sp.
Bullock's/Black-backed Oriole
Red-eyed/Chivi Vireo
Scarlet-fronted/Cordilleran Parakeet
lapwing sp.
Little/Least Tern
Grasshopper/Henslow's Sparrow
whydah sp.
eclectus sp.
Oriental/Eurasian Magpie
Common/Black Scoter
harrier sp.
Brotogeris sp.
Dark-eyed Junco/Pine Warbler
Red-eyed/Black-whiskered Vireo
tanager sp. (Thraupidae sp.)
old world quail sp.
Emberiza sp.
quail-dove sp.
Taiga/Tundra Bean-Goose
Common/Oriental Cuckoo
Common/Antillean Nighthawk
Chipping Sparrow/Worm-eating Warbler
Thalasseus sp.
Cory's/Cape Verde Shearwater
pygmy-owl/saw-whet owl sp.
Spotted/Barred Owl
Psittacula sp.
Leach's/Townsend's Storm-Petrel (dark-rumped)
sand-plover sp.
vireo sp. (Red-eyed Vireo complex)
Red-necked/Little Stint
small swift sp.
Hudsonian/Marbled Godwit
Smooth-billed/Groove-billed Ani
Long-tailed/Pomarine Jaeger
Eastern/Mexican Whip-poor-will
flamingo sp.
Leach's/Townsend's Storm-Petrel
Phylloscopus sp.
Hepatic/Summer Tanager
yellowthroat sp.
screech-owl sp.
Connecticut/MacGillivray's/Mourning Warbler
Petrochelidon sp.
Common Ringed/Semipalmated Plover
Hen/Northern Harrier
Black-throated Gray/Townsend's Warbler
White-winged/Stejneger's Scoter
Leach's/Townsend's Storm-Petrel (white-rumped)
Scripps's/Guadalupe/Craveri's Murrelet
Pheucticus sp.
Philadelphia/Red-eyed Vireo
Black-throated Gray/Hermit Warbler
Black-legged/Red-legged Kittiwake
nightjar sp.
Coccyzus sp.
Antrostomus sp.
Hydrobates sp.
Shiny/Brown-headed Cowbird
Golden-winged/Blue-winged Warbler
Eastern/Chihuahuan Meadowlark
Philadelphia/Warbling Vireo
Purple/Rock Sandpiper
cuckoo sp. (Cuculidae sp.)
MacGillivray's/Mourning Warbler
Gray-cheeked/Bicknell's Thrush
Common/Spotted Sandpiper
Yellow-billed/Black-billed Cuckoo
LeConte's/Nelson's Sparrow
Red-eyed/Yellow-green Vireo
Clay-colored/Brewer's Sparrow
Sharp-tailed/Pectoral Sandpiper
Western/Eastern Wood-Pewee
Alder/Willow Flycatcher (Traill's Flycatcher)
Western Cattle/Yellow-billed Egret
Long-tailed/Parasitic Jaeger
Cookilaria petrel sp.
Cory's/Great Shearwater
Snow/McKay's Bunting
Bay-breasted/Blackpoll Warbler
Common/Arctic Tern
Scolopacidae sp.
Thraupidae sp.
Red/Cassia Crossbill
Laughing/Franklin's Gull
new world martin sp. (Progne sp.)
Masked/Nazca Booby
American/Pacific Golden-Plover (Lesser Golden-Plover)
Scripps's/Guadalupe Murrelet (Xantus's Murrelet)
Greater/Lesser Prairie-Chicken
Botteri's/Cassin's Sparrow
golden-plover sp.
Scripps's/Craveri's Murrelet
Common/Wilson's Snipe
Sedge/Marsh Wren
Passer sp.
American/Greater Flamingo
Summer/Scarlet Tanager
American Three-toed/Black-backed Woodpecker
Leach's/Townsend's/Ainley's Storm-Petrel
Podiceps sp.
Common/Short-billed Gull
frigatebird sp.
pheasant sp.
Boreal/Northern Saw-whet Owl
Arctic/Pacific Loon
Yellow-footed/Western Gull
Sooty/Bridled Tern
Common/Ruddy Ground Dove
Herring/Lesser Black-backed Gull
Rose-breasted/Black-headed Grosbeak
oystercatcher sp.
Masked/Ruddy Duck
Cassin's/Blue-headed Vireo
storm-petrel sp. (dark-rumped)
Gray-tailed/Wandering Tattler
storm-petrel sp. (white-rumped)
moorhen/coot/gallinule sp.
Pacific/Winter Wren
ptarmigan sp.
Bridled/Juniper Titmouse
Chimney/Vaux's Swift
Townsend's/Hermit Warbler
White-winged/Yellow-chevroned Parakeet
Grasshopper/Baird's Sparrow
King/Common Eider
Domestic lovebird sp. (Domestic type)
auklet sp.
black-and-white shearwater sp.
albatross sp.
American/Black Oystercatcher
Oak/Juniper Titmouse (Plain Titmouse)
sparrow/warbler sp. (trilling song)
estrildid finch sp.
Lincoln's/Swamp Sparrow
corella/white cockatoo sp.
Eurasian Moorhen/Common Gallinule
Psittacara sp.
American Black/Mottled Duck
Long-eared/Short-eared Owl
Common/Yellow-billed Loon
Ammospiza sp.
Bullock's/Baltimore Oriole
White-crowned/White-throated Sparrow
Streptopelia sp.
Rock/Band-tailed Pigeon
Western/Eastern Cattle Egret
Dark-eyed/Yellow-eyed Junco
large rail sp.
Red-naped/Red-breasted Sapsucker
rail/crake sp.
California/Woodhouse's Scrub-Jay
hawaiian honeycreeper sp.
Hammond's/Dusky Flycatcher
Acanthis/Spinus sp.
Red-whiskered/Red-vented Bulbul
Thick-billed/Common Murre
Ring-necked/Green Pheasant
large falcon sp.
solitary vireo sp.
House/Eurasian Tree Sparrow
Brown/Long-billed Thrasher
Tyrannus sp.
Dusky/Sooty Grouse
Rusty/Brewer's Blackbird
California/Gambel's Quail
Parasitic/Pomarine Jaeger
Pterodroma sp.
new world quail sp.
large parakeet sp. (former Aratinga sp.)
Sagebrush/Bell's Sparrow (Sage Sparrow)
white-winged gull sp.
Spizella sp./American Tree Sparrow
Herring/Glaucous-winged Gull
Herring/Iceland Gull
Nelson's/Saltmarsh Sparrow (Sharp-tailed Sparrow)
Ardea sp.
shearwater sp.
tropicbird sp.
Golden-fronted/Red-bellied Woodpecker
Red-winged/Tricolored Blackbird
Bronzed/Brown-headed Cowbird
Lonchura sp.
Red-crowned/Lilac-crowned Parrot
Sooty/Short-tailed Shearwater
Cooper's Hawk/American Goshawk
Varied Thrush/American Robin
Downy/Ladder-backed Woodpecker
Cassin's/Western Kingbird
Blue-winged/Cinnamon Teal
King/Clapper Rail
crow/raven sp.
small plover sp.
new world oriole sp.
procellariid sp.
Yellow-bellied/Red-naped Sapsucker
Empidonax sp.
small falcon sp.
tanager sp. (Piranga sp.)
large tern sp.
Boat-tailed/Great-tailed Grackle
Sturnella meadowlark sp.
whistling-duck sp.
Amazona sp.
yellow-bellied kingbird sp.
Yellow-crowned/Black-crowned Night Heron
Mitred/Red-masked Parakeet
Ruby-throated/Black-chinned Hummingbird
Great/Double-crested Cormorant
parrot sp.
Haemorhous sp.
Ruby-crowned/Golden-crowned Kinglet
Loggerhead/Northern Shrike
Western/Chihuahuan Meadowlark
Spotted/Eastern Towhee (Rufous-sided Towhee)
parakeet sp.
Curve-billed/Bendire's Thrasher
Anna's/Costa's Hummingbird
Eurasian/African Collared-Dove
Western/Clark's Grebe
Louisiana/Northern Waterthrush
new world warbler sp.
Nuttall's/Ladder-backed Woodpecker
Tropical/Couch's Kingbird
Common/Barrow's Goldeneye
Northern Cardinal/Pyrrhuloxia
Red-shouldered/Broad-winged Hawk
Black-capped/Mountain Chickadee
rosy-finch sp.
Black-bellied Plover/golden-plover sp.
Tree/Violet-green Swallow
Western/Glaucous-winged Gull
dabbling duck sp.
Domestic goose sp. (Domestic type)
Rufous/Allen's Hummingbird
Northern/Tropical Parula
Tufted/Black-crested Titmouse
Double-crested/Neotropic Cormorant
Western/Semipalmated Sandpiper
Common/Red-breasted Merganser
Short-billed/Long-billed Dowitcher
Lesser/Greater Yellowlegs
Western/Eastern Meadowlark
Greater/Lesser Scaup
Mallard/American Black Duck
Sharp-shinned/Cooper's Hawk
longspur sp.
passerine sp.
Carolina/Black-capped Chickadee