Studied by 2 people
Order Anseriformes Family Anhimidae Southern Screamer
Order Anseriformes Family Anatidae Snow Goose
Order Anseriformes Family Anatidae Ross's Goose
Order Anseriformes Family Anatidae Brant
Order Anseriformes Family Anatidae Cackling Goose
Order Anseriformes Family Anatidae Canada Goose
Order Anseriformes Family Anatidae Tundra Swan
Order Anseriformes Family Anatidae Wood Duck
(male)
Order Anseriformes Family Anatidae Wood Duck
(female)
Order Anseriformes Family Anatidae Gadwall
(male)
Order Anseriformes Family Anatidae Gadwall
(female)
Order Anseriformes Family Anatidae American Wigeon
(male)
Order Anseriformes Family Anatidae American Wigeon
(female)
Order Anseriformes Family Anatidae Eurasian Wigeon
(male)
Order Anseriformes Family Anatidae Mallard
(male)
Order Anseriformes Family Anatidae Mallard
(female)
Order Anseriformes Family Anatidae Cinnamon Teal
(male)
Order Anseriformes Family Anatidae Cinnamon Teal
(female)
Order Anseriformes Family Anatidae Northern Shoveler
(male)
Order Anseriformes Family Anatidae Northern Shoveler
(female)
Order Anseriformes Family Anatidae Northern Pintail
(male)
Order Anseriformes Family Anatidae Northern Pintail
(female)
Order Anseriformes Family Anatidae Green-winged Teal
(male)
Order Anseriformes Family Anatidae Green-winged Teal
(female)
Order Anseriformes Family Anatidae Canvasback
(male)
Order Anseriformes Family Anatidae Canvasback
(female)
Order Anseriformes Family Anatidae Redhead
(male)
Order Anseriformes Family Anatidae Redhead
(female)
Order Anseriformes Family Anatidae Ring-necked Duck
(male)
Order Anseriformes Family Anatidae Ring-necked Duck
(female)
Order Anseriformes Family Anatidae Greater Scaup
(male)
Order Anseriformes Family Anatidae Greater Scaup
(female)
Order Anseriformes Family Anatidae Lesser Scaup
(male)
Order Anseriformes Family Anatidae Lesser Scaup
(female)
Order Anseriformes Family Anatidae Harlequin Duck
(male)
Order Anseriformes Family Anatidae Harlequin Duck
(female)
Order Anseriformes Family Anatidae Surf Scoter
(male)
Order Anseriformes Family Anatidae Surf Scoter
(female)
Order Anseriformes Family Anatidae Black Scoter
(male)
Order Anseriformes Family Anatidae Black Scoter
(female)
Order Anseriformes Family Anatidae Bufflehead
(male)
Order Anseriformes Family Anatidae Bufflehead
(female)
Order Anseriformes Family Anatidae Common Goldeneye
(male)
Order Anseriformes Family Anatidae Common Goldeneye
(female) bill is sometimes black with yellow tip
Order Anseriformes Family Anatidae Hooded Merganser
(male)
Order Anseriformes Family Anatidae Hooded Merganser
(female)
Order Anseriformes Family Anatidae Common Merganser
(male)
Order Anseriformes Family Anatidae Common Merganser
(female)
Order Anseriformes Family Anatidae Red-breasted Merganser
(male)
Order Anseriformes Family Anatidae Red-breasted Merganser
(female)
Order Anseriformes Family Anatidae Ruddy Duck
(male)
Order Anseriformes Family Anatidae Ruddy Duck
(female)
Order Podicipediformes Family Podicipedidae Pied-billed Grebe
(alternate)
Order Podicipediformes Family Podicipedidae Pied-billed Grebe
(basic)
Order Podicipediformes Family Podicipedidae Horned Grebe
(alternate)
Order Podicipediformes Family Podicipedidae Horned Grebe
(basic)
Order Podicipediformes Family Podicipedidae Red-necked Grebe
(alternate)
Order Podicipediformes Family Podicipedidae Red-necked Grebe
(basic)
Order Podicipediformes Family Podicipedidae Eared Grebe
(alternate)
Order Podicipediformes Family Podicipedidae Eared Grebe
(basic)
Order Podicipediformes Family Podicipedidae Western Grebe
(alternate)
Order Podicipediformes Family Podicipedidae Western Grebe
(basic)
Order Podicipediformes Family Podicipedidae Clark's Grebe
(alternate)
Order Podicipediformes Family Podicipedidae Clark's Grebe
(basic)
Order Gaviiformes Family Gaviidae Red-throated Loon
(alternate)
Order Gaviiformes Family Gaviidae Red-throated Loon
(basic)
Order Gaviiformes Family Gaviidae Pacific Loon
(alternate)
Order Gaviiformes Family Gaviidae Pacific Loon
(basic)
Order Gaviiformes Family Gaviidae Common Loon
(alternate)
Order Gaviiformes Family Gaviidae Common Loon
(basic)
Order Sphenisciformes Family Spheniscidae Emperor Penguin
Order Cathartiformes Family Cathartidae Turkey Vulture
Order Cathartiformes Family Cathartidae California Condor
Order Accipitriformes Family Pandionidae Osprey
Order Accipitriformes Family Accipitridae White-tailed Kite
Order Accipitriformes Family Accipitridae Bald Eagle
(juvenile)
Order Accipitriformes Family Accipitridae Bald Eagle
(adult)
Order Accipitriformes Family Accipitridae Northern Harrier
(male)
Order Accipitriformes Family Accipitridae Northern Harrier
(female)
Order Accipitriformes Family Accipitridae Northern Harrier
(juvenile)
Order Accipitriformes Family Accipitridae Sharp-shinned Hawk
(adult) (females are 1/3 bigger than males)
Order Accipitriformes Family Accipitridae Sharp-shinned Hawk
(juvenile)
Order Accipitriformes Family Accipitridae Cooper's Hawk
(adult)
Order Accipitriformes Family Accipitridae Cooper's Hawk
(juvenile)
Order Accipitriformes Family Accipitridae Northern Goshawk
(adult)
Order Accipitriformes Family Accipitridae Northern Goshawk
(juvenile)
Order Accipitriformes Family Accipitridae Red-shouldered Hawk
Order Accipitriformes Family Accipitridae Red-tailed Hawk
(light morph)
Order Accipitriformes Family Accipitridae Red-tailed Hawk
(juvenile)
Order Accipitriformes Family Accipitridae Rough-legged Hawk
(light morph)
Order Accipitriformes Family Accipitridae Ferruginous Hawk
(light morph)
Order Accipitriformes Family Accipitridae Swainson's Hawk
(light morph)
Order Accipitriformes Family Accipitridae Golden Eagle
Order Strigiformes Family Tytonidae Barn Owl
Order Strigiformes Family Strigidae Western Screech-Owl
Order Strigiformes Family Strigidae Great Horned Owl
Order Strigiformes Family Strigidae Northern Pygmy-Owl
Order Strigiformes Family Strigidae Burrowing Owl
Order Strigiformes Family Strigidae Spotted Owl
Order Strigiformes Family Strigidae Barred Owl
Note
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