species
98.
species
112.
species
118.
species
129.
species
141.
species
142.
species
143.
species
158.
species
168.
species
172.
species
173.
species
188.
species
191.
species
207.
species
220.
species
223.
species
225.
species
226.
species
233.
species
236.
species
239.
species
243.
species
268.
species
274.
species
279.
species
298.
species
334.
species
345.
species
355.
species
358.
species
360.
species
363.
species
365.
species
383.
species
386.
species
388.
species
389.
species
419.
species
420.
species
429.
species
438.
species
447.
species
457.
species
458.
species
463.
species
467.
species
472.
species
478.
species
482.
species
483.
species
485.
species
488.
species
491.
species
497.
species
505.
species
509.
species
510.
species
517.
species
520.
species
522.
species
527.
species
535.
species
545.
species
548.
species
549.
species
554.
species
560.
species
562.
species
573.
species
574.
species
580.
species
586.
species
587.
species
589.
species
592.
species
607.
species
608.
species
611.
species
616.
species
617.
species
625.
species
626.
species
631.
species
632.
species
637.
species
640.
species
641.
species
645.
species
652.
species
653.
species
654.
species
655.
species
657.
species
660.
species
662.
species
664.
species
665.
species
666.
species
667.
species
668.
species
672.
species
674.
species
677.
species
678.
species
679.
species
686.
species
690.
species
691.
species
692.
species
693.
species
694.
species
696.
species
697.
species
698.
species
699.
species
700.
species
701.
species
702.
species
707.
species
709.
species
710.
species
712.
species
713.
species
715.
species
716.
species
717.
species
718.
species
720.
species
723.
species
725.
species
727.
species
728.
species
729.
species
730.
species
731.
species
732.
species
733.
species
734.
species
738.
species
739.
species
740.
species
743.
species
745.
species
746.
species
747.
species
748.
species
749.
species
750.
species
751.
species
752.
species
753.
species
754.
species
755.
species
756.
species
757.
species
758.
species
759.
species
760.
species
761.
species
762.
species
764.
species
765.
species
766.
species
767.
species
768.
species
769.
species
770.
species
771.
species
772.
species
773.
species
774.
species
775.
species
776.
species
777.
species
778.
species
779.
species
780.
species
781.
species
782.
species
783.
species
784.
species
785.
species
786.
species
788.
species
790.
species
791.
species
792.
species
793.
species
794.
species
795.
species
796.
species
797.
species
798.
species
799.
species
800.
species
801.
species
802.
species
803.
species
804.
species
805.
species
806.
species
807.
species
808.
species
809.
species
810.
species
811.
species
813.
species
814.
species
815.
species
816.
species
817.
species
818.
species
819.
species
820.
species
821.
species
822.
species
823.
species
824.
species
825.
species
826.
species
827.
species
828.
species
829.
species
830.
species
831.
species
832.
species
833.
species
834.
species
835.
species
836.
species
837.
species
838.
species
839.
species
840.
species
841.
species
842.
species
843.
species
844.
species
846.
species
847.
species
848.
species
849.
species
850.
species
851.
species
852.
species
853.
species
854.
species
855.
species
856.
species
857.
species
858.
species
859.
species
860.
species
861.
species
862.
species
863.
species
864.
species
865.
species
866.
species
867.
species
869.
species
870.
species
871.
species
872.
species
873.
species
874.
species
875.
species
876.
species
878.
species
879.
species
880.
species
881.
species
882.
species
883.
species
884.
species
885.
species
886.
species
887.
species
888.
species
889.
species
890.
species
891.
species
892.
species
893.
species
894.
species
895.
species
896.
species
897.
species
898.
species
899.
species
900.
species
901.
species
902.
species
903.
species
904.
species
905.
species
906.
species
907.
species
908.
species
909.
species
910.
species
911.
species
912.
species
913.
species
914.
species
915.
species
916.
species
917.
species
918.
species
919.
species
920.
species
921.
species
922.
species
923.
species
924.
species
925.
species
926.
species
927.
species
928.
species
929.
species
930.
species
931.
species
932.
species
933.
species
934.
species
935.
species
936.
species
937.
species
938.
species
939.
species
940.
species
941.
species
942.
species
943.
species
944.
species
945.
species
946.
species
947.
species
948.
species
949.
species
950.
species
951.
species
952.
species
953.
species
954.
species
955.
species
956.
species
957.
species
958.
species
959.
species
960.
species
961.
species
962.
species
963.
species
964.
species
965.
species
966.
species
967.
species
968.
species
969.
species
970.
species
971.
species
972.
species
973.
species
974.
species
975.
species
976.
species
977.
species
978.
species
979.
species
980.
species
981.
species
982.
species
983.
species
984.
species
985.
species
986.
species
987.
species
988.
species
989.
species
990.
species
991.
species
992.
species
993.
species
994.
species
995.
species
996.
species
997.
species
998.
species
999.
species
1000.
species
1001.
species
1002.
species
1003.
species
1004.
species
1005.
species
1006.
species
1007.
species
1008.
species
1009.
species
1010.
species
1011.
species
1012.
species
1013.
species
1014.
species
1015.
species
1016.
species
1017.
species
1018.
species
1019.
species
1020.
species
1021.
species
1022.
species
1023.
species
1024.
species
1025.
species
1026.
species
1027.
species
1028.
species
1029.
species
1030.
species
1031.
species
1032.
species
1033.
species
1034.
species
1035.
species
1036.
species
1037.
species
1038.
species
1039.
species
1040.
species
1041.
species
1042.
species
1043.
species
1044.
species
1047.
species
1048.
species
1049.
species
1050.
species
1051.
species
1053.
species
1054.
species
1056.
species
1058.
species
1059.
species
1061.
species
1062.
species
1063.
species
1064.
species
1065.
species
1066.
species
1067.
species
1068.
species
1069.
species
1070.
species
1071.
species
1072.
species
1073.
species
1074.
species
1075.
species
1076.
species
1077.
species
1078.
species
1079.
species
1080.
species
1081.
species
1084.
species
1085.
species
1086.
species
1087.
species
1088.
species
1089.
species
1090.
species
1091.
species
1092.
species
1093.
species
1095.
species
1096.
species
1097.
species
1098.
species
1100.
species
1101.
species
1102.
species
1103.
species
1104.
species
1105.
species
1107.
species
1108.
species
1109.
species
1110.
species
1111.
species
1112.
species
1113.
species
1114.
species
1115.
species
1116.
species
1117.
species
1118.
species
1119.
species
1120.
species
1135.
species
1141.
species
1144.
species
1145.
species
1146.
species
1147.
species
1148.
species
1149.
species
1150.
species
1151.
species
1152.
species
1153.
species
1154.
species
1155.
species
1156.
species
1158.
species
1159.
species
1160.
species
1161.
species
1162.
species
1164.
Mallard x Mottled Duck (hybrid)
American Wigeon x Mallard (hybrid)
Mallard x American Black Duck (hybrid)
Western x Glaucous-winged Gull (hybrid)
Mallard x Mexican Duck (hybrid)
Domestic goose sp. x Canada Goose (hybrid)
Snow x Ross's Goose (hybrid)
Herring x Glaucous-winged Gull (hybrid)
Altamira x Audubon's Oriole (hybrid)
Mallard x Hawaiian Duck (hybrid)
Tufted x Black-crested Titmouse (hybrid)
Western x Clark's Grebe (hybrid)
Bufflehead x Common Goldeneye (hybrid)
Red-naped x Red-breasted Sapsucker (hybrid)
Tufted Duck x scaup sp. (hybrid)
Mallard x Northern Pintail (hybrid)
Common Black x Red-shouldered Hawk (hybrid)
Carolina x Black-capped Chickadee (hybrid)
Greater x Lesser Prairie-Chicken (hybrid)
Snow x Canada Goose (hybrid)
Blue-winged x Cinnamon Teal (hybrid)
Glossy x White-faced Ibis (hybrid)
Eurasian x American Wigeon (hybrid)
Graylag x Canada Goose (hybrid)
Nuttall's x Ladder-backed Woodpecker (hybrid)
Greater White-fronted x Canada Goose (hybrid)
Gadwall x Mallard (hybrid)
Bullock's x Baltimore Oriole (hybrid)
Red-shouldered x Red-tailed Hawk (hybrid)
Scaled x Gambel's Quail (hybrid)
Northern Cardinal x Pyrrhuloxia (hybrid)
Common x Barrow's Goldeneye (hybrid)
Common Goldeneye x Hooded Merganser (hybrid)
Black-capped x Mountain Chickadee (hybrid)
Mexican x Mottled Duck (hybrid)
Blue-winged Teal x Northern Shoveler (hybrid)
Muscovy Duck x Mallard (hybrid)
Mute x Trumpeter Swan (hybrid)
Mallard x Mexican/Mottled Duck (hybrid)
Black x Eastern Phoebe (hybrid)
Swan Goose x Canada Goose (hybrid)
Townsend's x Hermit Warbler (hybrid)
Rufous x Allen's Hummingbird (hybrid)
Anna's x Rufous Hummingbird (hybrid)
Lawrence's Warbler (hybrid)
American x Black Oystercatcher (hybrid)
Northern x Tropical Parula (hybrid)
Yellow-rumped x Townsend's Warbler (hybrid)
Cinnamon Teal x Northern Shoveler (hybrid)
Glaucous x Glaucous-winged Gull (hybrid)
Snow x Greater White-fronted Goose (hybrid)
Downy x Nuttall's Woodpecker (hybrid)
Snow x Cackling Goose (hybrid)
Redhead x Lesser Scaup (hybrid)
Downy x Hairy Woodpecker (hybrid)
Herring x California Gull (hybrid)
Redhead x Ring-necked Duck (hybrid)
Ring-necked Duck x Lesser Scaup (hybrid)
Spotted x Eastern Towhee (hybrid)
Northern Shoveler x Gadwall (hybrid)
Snow Goose x Brant (hybrid)
Herring x Lesser Black-backed Gull (hybrid)
Herring x Glaucous Gull (hybrid)
Northern Pintail x Green-winged Teal (hybrid)
Canyon x Abert's Towhee (hybrid)
Gadwall x Northern Pintail (hybrid)
Golden-fronted x Red-bellied Woodpecker (hybrid)
Anna's Hummingbird x Selasphorus sp. (hybrid)
Ross's x Cackling Goose (hybrid)
American Wigeon x Northern Pintail (hybrid)
Black-bellied x Fulvous Whistling-Duck (hybrid)
Herring x Great Black-backed Gull (hybrid)
Wood Duck x Mallard (hybrid)
Ring-necked Duck x scaup sp. (hybrid)
House x Purple Finch (hybrid)
Laughing x Ring-billed Gull (hybrid)
Yellow-bellied/Red-naped x Red-breasted Sapsucker (hybrid)
Ring-necked Duck x Greater Scaup (hybrid)
Tufted Duck x Greater Scaup (hybrid)
House x Eurasian Tree Sparrow (hybrid)
Downy x Ladder-backed Woodpecker (hybrid)
Tufted Duck x Lesser Scaup (hybrid)
Anna's x Broad-billed Hummingbird (hybrid)
Cinnamon x Green-winged Teal (hybrid)
Black-throated Gray x Townsend's Warbler (hybrid)
American Wigeon x Green-winged Teal (hybrid)
Great Black-backed x Glaucous Gull (hybrid)
Yellow-bellied x Red-naped Sapsucker (hybrid)
Anna's x Costa's Hummingbird (hybrid)
Western Kingbird x Scissor-tailed Flycatcher (hybrid)
Snow/Ross's x Cackling/Canada Goose (hybrid)
Northern Shoveler x Mallard (hybrid)
Magnolia x Yellow-rumped Warbler (hybrid)
Bufflehead x goldeneye sp. (hybrid)
Laysan x Black-footed Albatross (hybrid)
Canvasback x Redhead (hybrid)
Red-tailed x Ferruginous Hawk (hybrid)
White x Salmon-crested Cockatoo (hybrid)
Red-tailed x Rough-legged Hawk (hybrid)
White-crowned x Golden-crowned Sparrow (hybrid)
Greater White-fronted x Cackling Goose (hybrid)
Redhead x scaup sp. (hybrid)
Ross's x Canada Goose (hybrid)
Red-crowned x Lilac-crowned Parrot (hybrid)
Canvasback x Ring-necked Duck (hybrid)
Dark-eyed Junco x White-throated Sparrow (hybrid)
Blue-winged x Green-winged Teal (hybrid)
Hooded x Common Merganser (hybrid)
California x Gambel's Quail (hybrid)
Barnacle x Canada Goose (hybrid)
White-crowned x White-throated Sparrow (hybrid)
Barnacle x Cackling Goose (hybrid)
Greater White-fronted x Cackling/Canada Goose (hybrid)
Cooper's Hawk x American Goshawk (hybrid)
Mallard x Green-winged Teal (hybrid)
Red-whiskered x Red-vented Bulbul (hybrid)
Red-crowned x Red-lored Parrot (hybrid)
goldeneye sp. x Hooded Merganser (hybrid)
Black-headed x Ring-billed Gull (hybrid)
Fischer's x Yellow-collared Lovebird (hybrid)
Gray-crowned x Black Rosy-Finch (hybrid)
Gadwall x American Wigeon (hybrid)
Canyon x Spotted Towhee (hybrid)
Mountain x Mexican Chickadee (hybrid)
Golden-crowned x White-throated Sparrow (hybrid)
Bufflehead x Hooded Merganser (hybrid)
Steller's x Blue Jay (hybrid)
Northern x Gilded Flicker (hybrid)
Eurasian Collared-Dove x Mourning Dove (hybrid)
Kelp x Herring Gull (hybrid)
Eurasian x African Collared-Dove (hybrid)
Double-crested x Neotropic Cormorant (hybrid)
Lazuli x Indigo Bunting (hybrid)
Anna's x Allen's Hummingbird (hybrid)
Mallard x Pacific Black Duck (hybrid)
Song x Swamp Sparrow (hybrid)
Yellow-rumped x Hermit Warbler (hybrid)
Steller's Jay x California Scrub-Jay (hybrid)
Golden-winged x Blue-winged Warbler (hybrid)
Brewster's Warbler (hybrid)
Townsend's x Black-throated Green Warbler (hybrid)
Herring x Slaty-backed Gull (hybrid)
Ruby-throated x Black-chinned Hummingbird (hybrid)
Broad-billed x Violet-crowned Hummingbird (hybrid)
American Redstart x Magnolia Warbler (hybrid)
Western x Flame-colored Tanager (hybrid)
Glaucous-winged x Slaty-backed Gull (hybrid)
Lucifer x Black-chinned Hummingbird (hybrid)
Black-chinned x Broad-tailed Hummingbird (hybrid)
Black-chinned x Anna's Hummingbird (hybrid)
Rose-breasted x Black-headed Grosbeak (hybrid)
Bahama x Northern Mockingbird (hybrid)
Calliope x Rufous Hummingbird (hybrid)
Sandwich x Elegant Tern (hybrid)
Barn x Cliff Swallow (hybrid)
Black-chinned x Calliope Hummingbird (hybrid)
Yellow-bellied x Red-breasted Sapsucker (hybrid)
Little Blue Heron x Snowy Egret (hybrid)
Barn x Cave Swallow (hybrid)
Eastern x Mountain Bluebird (hybrid)
Black-chinned x Broad-billed Hummingbird (hybrid)
Great Egret x Great Blue Heron (hybrid)
Colima x Virginia's Warbler (hybrid)
Common x Arctic Tern (hybrid)
Thick-billed x Common Murre (hybrid)
Common x Roseate Tern (hybrid)
Northern Parula x Black-throated Gray Warbler (hybrid)
Western x Chihuahuan Meadowlark (hybrid)
Oriental Turtle-Dove x Eurasian Collared-Dove (hybrid)
Bay-breasted x Blackpoll Warbler (hybrid)
King x Clapper Rail (hybrid)
Nelson's x Saltmarsh Sparrow (hybrid)
Western x Eastern Kingbird (hybrid)
Pine Siskin x American Goldfinch (hybrid)
Mourning Warbler x Common Yellowthroat (hybrid)
Spotted x Barred Owl (hybrid)
Chipping x Clay-colored Sparrow (hybrid)
Ruddy Turnstone x White-rumped Sandpiper (hybrid)
Bay-breasted x Blackburnian Warbler (hybrid)
Snowy x Little Egret (hybrid)
Greater Sage-Grouse x Sharp-tailed Grouse (hybrid)
Black-necked Stilt x American Avocet (hybrid)
Yellow-rumped x Grace's Warbler (hybrid)
White-crowned x Harris's Sparrow (hybrid)
Black-capped x White-eyed Vireo (hybrid)
Northern Parula x Yellow-throated Warbler (hybrid)
Sharp-tailed Grouse x Greater Prairie-Chicken (hybrid)
King x Common Eider (hybrid)
Cape May x Magnolia Warbler (hybrid)
Black-throated Gray x Hermit Warbler (hybrid)
Steller's Jay x Woodhouse's Scrub-Jay (hybrid)
MacGillivray's Warbler x Common Yellowthroat (hybrid)
Ladder-backed x Hairy Woodpecker (hybrid)
Surf x White-winged Scoter (hybrid)
Barrow's Goldeneye x Hooded Merganser (hybrid)
Trumpeter x Tundra Swan (hybrid)
Common x Great-tailed Grackle (hybrid)
Mute x Whooper Swan (hybrid)
Trumpeter x Whooper Swan (hybrid)
Dark-eyed Junco x White-crowned Sparrow (hybrid)
Western x Mountain Bluebird (hybrid)
Boat-tailed x Great-tailed Grackle (hybrid)
Mallard x Ring-necked Duck (hybrid)
Hairy x White-headed Woodpecker (hybrid)
Black-chinned x Costa's Hummingbird (hybrid)
White x Scarlet Ibis (hybrid)
Couch's Kingbird x Scissor-tailed Flycatcher (hybrid)
Golden x Lady Amherst's Pheasant (hybrid)
Summer x Western Tanager (hybrid)
Yellow-throated x Blue-headed Vireo (hybrid)
Tropical x Gray Kingbird (hybrid)
Graylag x Swan Goose (hybrid)
Tricolored Heron x Snowy Egret (hybrid)
Brown x Blue-footed Booby (hybrid)
Yellow-breasted Chat x new world oriole sp. (hybrid)
Tennessee x Nashville Warbler (hybrid)
Buff-breasted x White-rumped Sandpiper (hybrid)
Dark-eyed x Yellow-eyed Junco (hybrid)
Lucifer x Costa's Hummingbird (hybrid)
Dunlin x White-rumped Sandpiper (hybrid)
MacGillivray's x Mourning Warbler (hybrid)
Blue-winged Teal x American Wigeon (hybrid)
Cerulean Warbler x Northern Parula (hybrid)
Varied x Painted Bunting (hybrid)
Lapland Longspur x Snow Bunting (hybrid)
California x Crissal Thrasher (hybrid)
Grasshopper x Savannah Sparrow (hybrid)
Ross's x Greater White-fronted Goose (hybrid)
Little Blue x Tricolored Heron (hybrid)
Curve-billed x Long-billed Thrasher (hybrid)
Gadwall x Green-winged Teal (hybrid)
Redhead x Greater Scaup (hybrid)
Indigo x Painted Bunting (hybrid)
Mountain x Chestnut-backed Chickadee (hybrid)
Blue-and-yellow x Scarlet Macaw (hybrid)
Northern Shoveler x American Wigeon (hybrid)
Sandhill x Common Crane (hybrid)
Rivoli's x Berylline Hummingbird (hybrid)
Common Gallinule x American Coot (hybrid)
Ruddy x Common Shelduck (hybrid)
Clay-colored x Field Sparrow (hybrid)
Kentucky Warbler x Common Yellowthroat (hybrid)
Green-tailed x Spotted Towhee (hybrid)
Northern Bobwhite x California Quail (hybrid)
Glaucous x Slaty-backed Gull (hybrid)
American Redstart x Northern Parula (hybrid)
Western x Eastern Meadowlark (hybrid)
Yellow-crowned x Black-crowned Night Heron (hybrid)
Yellow x Prairie Warbler (hybrid)
Black-chinned x Rufous Hummingbird (hybrid)
Song x Lincoln's Sparrow (hybrid)
Black x Say's Phoebe (hybrid)
Anna's x Calliope Hummingbird (hybrid)
Mallard x Eastern Spot-billed Duck (hybrid)
Canvasback x scaup sp. (hybrid)
Eurasian Wigeon x Northern Pintail (hybrid)
Emperor x Greater White-fronted Goose (hybrid)
Red-shouldered x Broad-winged Hawk (hybrid)
Yellow x Black-throated Blue Warbler (hybrid)
Chipping x Field Sparrow (hybrid)
American Redstart x Yellow Warbler (hybrid)
Palm x Yellow-rumped Warbler (hybrid)
Costa's x Broad-billed Hummingbird (hybrid)
Western x Eastern Wood-Pewee (hybrid)
Crimson x Eastern Rosella (hybrid)
House x Fish Crow (hybrid)
Rufous x Broad-tailed Hummingbird (hybrid)
Scarlet Tanager x Rose-breasted Grosbeak (hybrid)
Summer x Scarlet Tanager (hybrid)
Magnolia x Palm Warbler (hybrid)
Emperor x Cackling Goose (hybrid)
Ring-necked x Green Pheasant (hybrid)
Lesser x American Goldfinch (hybrid)
Cape May x Yellow-rumped Warbler (hybrid)
Wood Duck x Hooded Merganser (hybrid)
Chestnut-sided x Black-throated Blue Warbler (hybrid)
American Wigeon x American Black Duck (hybrid)
Ring-necked x Tufted Duck (hybrid)
Northern Bobwhite x Scaled Quail (hybrid)
Spectacled x King Eider (hybrid)
Snow x McKay's Bunting (hybrid)
Cliff x Cave Swallow (hybrid)
Yellow-rumped x Yellow-throated Warbler (hybrid)
Western x Eastern Screech-Owl (hybrid)
Common x Hoary Redpoll (hybrid)
Hooded x Yellow Warbler (hybrid)
Yellow-rumped x Black-throated Gray Warbler (hybrid)
Peregrine x Prairie Falcon (hybrid)
Mallard x Redhead (hybrid)
Painted x Slate-throated Redstart (hybrid)
Calliope x Broad-tailed Hummingbird (hybrid)
Warbling x Red-eyed Vireo (hybrid)
White-winged x Yellow-chevroned Parakeet (hybrid)
Couch's x Western Kingbird (hybrid)
Sandhill x Whooping Crane (hybrid)
Orange-crowned x Nashville Warbler (hybrid)
Clay-colored x Brewer's Sparrow (hybrid)
Tropical x Northern Mockingbird (hybrid)
Ruby-throated x Broad-tailed Hummingbird (hybrid)
Blue-winged x Prairie Warbler (hybrid)
Magnolia x Chestnut-sided Warbler (hybrid)
Brant x Cackling Goose (hybrid)
Nashville x Magnolia Warbler (hybrid)
Magnolia x Black-throated Blue Warbler (hybrid)
Common Yellowthroat x Rufous-capped Warbler (hybrid)
Dusky x Sharp-tailed Grouse (hybrid)
Red Crossbill x Pine Siskin (hybrid)
Great Knot x Surfbird (hybrid)
Violet-green x Northern Rough-winged Swallow (hybrid)
Lucifer x Anna's Hummingbird (hybrid)
Tree x Violet-green Swallow (hybrid)
Violet-green x Cliff Swallow (hybrid)
Philadelphia x Red-eyed Vireo (hybrid)
Veery x Bicknell's Thrush (hybrid)
Grace's x Black-throated Gray Warbler (hybrid)
Common Yellowthroat x Yellow Warbler (hybrid)
Gray-crowned x Common Yellowthroat (hybrid)
Hepatic x Flame-colored Tanager (hybrid)
Swainson's x Rough-legged Hawk (hybrid)
Herring x Iceland Gull (hybrid)
White-rumped x Pectoral Sandpiper (hybrid)
Brewer's Blackbird x Great-tailed Grackle (hybrid)
Black-tailed x Black-capped Gnatcatcher (hybrid)
Mountain x Boreal Chickadee (hybrid)
Tree x Barn Swallow (hybrid)
Wood x Mandarin Duck (hybrid)
Nuttall's x Hairy Woodpecker (hybrid)
Curlew x Pectoral Sandpiper (hybrid)
Ruby-throated/Black-chinned Hummingbird
Carolina/Black-capped Chickadee
Mallard/American Black Duck
Downy/Hairy Woodpecker
Common/Barrow's Goldeneye
Lesser/Greater Yellowlegs
Rufous/Allen's Hummingbird
new world warbler sp.
Sharp-shinned/Cooper's Hawk
Double-crested/Neotropic Cormorant
Common/Red-breasted Merganser
Amazona sp.
Cassin's/Western Kingbird
Short-billed/Long-billed Dowitcher
Tree/Violet-green Swallow
Louisiana/Northern Waterthrush
Spizella sp./American Tree Sparrow
Domestic goose sp. (Domestic type)
new world vulture sp.
Western/Eastern Meadowlark
Psittacara sp.
Western/Glaucous-winged Gull
yellow-bellied kingbird sp.
Red-shouldered/Broad-winged Hawk
white egret sp.
Nelson's/Saltmarsh Sparrow (Sharp-tailed Sparrow)
Yellow-crowned/Black-crowned Night Heron
Ruby-crowned/Golden-crowned Kinglet
Great/Double-crested Cormorant
Northern Cardinal/Pyrrhuloxia
Dark-eyed/Yellow-eyed Junco
large shorebird sp.
Boat-tailed/Great-tailed Grackle
Bohemian/Cedar Waxwing
Herring/Glaucous-winged Gull
Tufted/Black-crested Titmouse
Western/Chihuahuan Meadowlark
Catharus sp.
Tropical/Couch's Kingbird
Common/Hoary Redpoll
tanager sp. (Piranga sp.)
House/Eurasian Tree Sparrow
gnatcatcher sp.
small falcon sp.
Black-bellied Plover/golden-plover sp.
Western/Semipalmated Sandpiper
Blue-winged/Cinnamon Teal
Northern/Gilded Flicker
Anna's/Costa's Hummingbird
Spotted/Eastern Towhee (Rufous-sided Towhee)
Black-capped/Mountain Chickadee
Acanthis/Spinus sp.
Nuttall's/Ladder-backed Woodpecker
Varied Thrush/American Robin
Golden/Bald Eagle
Downy/Ladder-backed Woodpecker
Loggerhead/Northern Shrike
Botteri's/Cassin's Sparrow
parakeet sp.
Black-throated Gray/Hermit Warbler
Golden-fronted/Red-bellied Woodpecker
Cathartes sp.
Western/Eastern Cattle Egret
California/Gambel's Quail
Red-winged/Tricolored Blackbird
Brown/Long-billed Thrasher
Red/Red-necked Phalarope
Laughing/Franklin's Gull
Hammond's/Dusky Flycatcher
Mitred/Red-masked Parakeet
Rose-breasted/Black-headed Grosbeak
Bronzed/Brown-headed Cowbird
Greater/Lesser Prairie-Chicken
Lincoln's/Swamp Sparrow
Pterodroma sp.
Sooty/Short-tailed Shearwater
merganser sp.
parrot sp.
Red-naped/Red-breasted Sapsucker
Eastern/Mexican Whip-poor-will
White-crowned/White-throated Sparrow
Buteo/eagle sp.
Thick-billed/Common Murre
sparrow/warbler sp. (trilling song)
moorhen/coot/gallinule sp.
Curve-billed/Bendire's Thrasher
Bullock's/Baltimore Oriole
Townsend's/Hermit Warbler
hawaiian honeycreeper sp.
Eurasian/African Collared-Dove
Bay-breasted/Blackpoll Warbler
storm-petrel sp. (dark-rumped)
Yellow-bellied/Red-naped Sapsucker
American Three-toed/Black-backed Woodpecker
Lazuli/Indigo Bunting
Red-whiskered/Red-vented Bulbul
Golden-winged/Blue-winged Warbler
Yellow-billed/Black-billed Cuckoo
storm-petrel sp. (white-rumped)
Dryobates sp.
Ring-necked/Green Pheasant
Parasitic/Pomarine Jaeger
Antrostomus sp.
Chaetura sp.
estrildid finch sp.
Oak/Juniper Titmouse (Plain Titmouse)
Red-crowned/Lilac-crowned Parrot
American/Pacific Golden-Plover (Lesser Golden-Plover)
Philadelphia/Warbling Vireo
ptarmigan sp.
Cooper's Hawk/American Goshawk
Sagebrush/Bell's Sparrow (Sage Sparrow)
Streptopelia sp.
Long-eared/Short-eared Owl
White-winged/Yellow-chevroned Parakeet
corella/white cockatoo sp.
Chimney/Vaux's Swift
Brown/Black Noddy
Common Ringed/Semipalmated Plover
Scripps's/Guadalupe Murrelet (Xantus's Murrelet)
Rock/Band-tailed Pigeon
California/Woodhouse's Scrub-Jay
Pacific/Winter Wren
Tyrannus sp.
large parakeet sp. (former Aratinga sp.)
Lonchura sp.
golden-plover sp.
American Black/Mottled Duck
new world quail sp.
Grasshopper/Baird's Sparrow
Western/Eastern Wood-Pewee
American/Black Oystercatcher
Ammospiza sp.
Common/Yellow-billed Loon
Eurasian Moorhen/Common Gallinule
black-and-white shearwater sp.
Domestic lovebird sp. (Domestic type)
King/Common Eider
Gray-tailed/Wandering Tattler
Bridled/Juniper Titmouse
Cassin's/Blue-headed Vireo
Masked/Ruddy Duck
Eurasian/American Goshawk
oystercatcher sp.
Herring/Lesser Black-backed Gull
Common/Ruddy Ground Dove
Yellow-footed/Western Gull
Arctic/Pacific Loon
Boreal/Northern Saw-whet Owl
pheasant sp.
frigatebird sp.
Common/Short-billed Gull
Podiceps sp.
Leach's/Townsend's/Ainley's Storm-Petrel
American/Greater Flamingo
Passer sp.
Scripps's/Craveri's Murrelet
Masked/Nazca Booby
new world martin sp. (Progne sp.)
Red/Cassia Crossbill
Thraupidae sp.
Alder/Willow Flycatcher (Traill's Flycatcher)
Common/Arctic Tern
Snow/McKay's Bunting
Cory's/Great Shearwater
Cookilaria petrel sp.
Long-tailed/Parasitic Jaeger
Western Cattle/Yellow-billed Egret
Sharp-tailed/Pectoral Sandpiper
Clay-colored/Brewer's Sparrow
Red-eyed/Yellow-green Vireo
LeConte's/Nelson's Sparrow
Common/Spotted Sandpiper
Gray-cheeked/Bicknell's Thrush
MacGillivray's/Mourning Warbler
cuckoo sp. (Cuculidae sp.)
pewee sp. (Contopus sp.)
Purple/Rock Sandpiper
Eastern/Chihuahuan Meadowlark
Shiny/Brown-headed Cowbird
Hydrobates sp.
Coccyzus sp.
Black-legged/Red-legged Kittiwake
Philadelphia/Red-eyed Vireo
Pheucticus sp.
Scripps's/Guadalupe/Craveri's Murrelet
Leach's/Townsend's Storm-Petrel (white-rumped)
White-winged/Stejneger's Scoter
Black-throated Gray/Townsend's Warbler
Hen/Northern Harrier
pygmy-owl/saw-whet owl sp.
Pallas's/Reed Bunting
Petrochelidon sp.
Connecticut/MacGillivray's/Mourning Warbler
screech-owl sp.
yellowthroat sp.
Hepatic/Summer Tanager
Phylloscopus sp.
Leach's/Townsend's Storm-Petrel
Oceanites sp.
flamingo sp.
Long-tailed/Pomarine Jaeger
Smooth-billed/Groove-billed Ani
Procellaria sp.
Hudsonian/Marbled Godwit
small swift sp.
Red-necked/Little Stint
vireo sp. (Red-eyed Vireo complex)
sand-plover sp.
Leach's/Townsend's Storm-Petrel (dark-rumped)
Psittacula sp.
Spotted/Barred Owl
Cory's/Cape Verde Shearwater
Thalasseus sp.
Chipping Sparrow/Worm-eating Warbler
Common/Antillean Nighthawk
Common/Oriental Cuckoo
Taiga/Tundra Bean-Goose
quail-dove sp.
Emberiza sp.
old world quail sp.
tanager sp. (Thraupidae sp.)
Red-eyed/Black-whiskered Vireo
Dark-eyed Junco/Pine Warbler
Brotogeris sp.
harrier sp.
Common/Black Scoter
Oriental/Eurasian Magpie
eclectus sp.
whydah sp.
Grasshopper/Henslow's Sparrow
Chlidonias sp.
Haliaeetus/Icthyophaga sp.
lapwing sp.
Scarlet-fronted/Cordilleran Parakeet
Red-eyed/Chivi Vireo
Bullock's/Black-backed Oriole
old world warbler sp.
Tundra/Whooper Swan
Ridgway's/Mangrove/Clapper Rail
stilt/avocet sp.
lovebird sp.
Shiny/Bronzed Cowbird
Red-billed/Red-tailed Tropicbird
Zosterops sp.
large macaw sp.
Greater/Lesser White-fronted Goose
swamphen sp.
Patagioenas sp.
Tree/Olive-backed Pipit
Red-legged/Rock Partridge
Black-throated Gray/Townsend's/Hermit Warbler
Hydrobates sp. (Band-rumped complex)
elaenia sp. (genus Elaenia)
Velvet/White-winged/Stejneger's Scoter
myna/starling sp.
Great/Medium Egret
Yellow-browed/Hume's Warbler
Vidua sp.
Striated/Green Heron
Lesser/Greater Roadrunner
Yellow-legged/Lesser Black-backed Gull
Ploceus sp.
coot sp.
Japanese Leaf/Arctic/Kamchatka Leaf Warbler
Bank Swallow/Pale Martin
Arctic/Kamchatka Leaf Warbler
Forpus sp.
Gray-streaked/Dark-sided Flycatcher
Common/Rain Quail
Far Eastern/Eurasian Curlew
small bittern sp.
Black-throated/White-throated Magpie-Jay
Ash-throated/Nutting's Flycatcher
white-eye sp.
Mississippi/Plumbeous Kite
Tropical/Northern Mockingbird
Garganey/Green-winged Teal
Northern/Great Gray Shrike
paradise-whydah sp.
Galapagos/Hawaiian Petrel (Dark-rumped Petrel)
Glaucidium sp.
Myioborus sp.
waxbill sp.
cordonbleu sp.
large albatross sp.
Serinus sp.
Geranoaetus/Buteo sp.
Euplectes sp.
violetear sp.
Greater/Gunnison Sage-Grouse
small albatross sp.
Sporophila sp.
Western/Eastern Yellow Wagtail
Atlantic/Indian Yellow-nosed Albatross
Trindade/Herald Petrel
White-capped/Salvin's/Chatham Albatross
Eurasian/Oriental Skylark
Morelet's/Cinnamon-rumped Seedeater
Siberian/Amur Stonechat
Red/Black Kite
Dusky/Naumann's Thrush
Streaked/Sulphur-bellied Flycatcher
Snowy/Kentish Plover
rainbow lorikeet sp.
large toucan sp.
Timaliidae sp.
Snowy/Tristan/Antipodean Albatross
hornbill sp.
Whimbrel/Eurasian Curlew