species
127.
species
164.
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166.
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531.
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541.
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species
567.
Herring x Glaucous-winged Gull (hybrid)
Mallard x Northern Pintail (hybrid)
Glaucous-winged x Slaty-backed Gull (hybrid)
Yellow-rumped x Black-throated Gray Warbler (hybrid)
Blue-winged Teal x Northern Shoveler (hybrid)
Eurasian x American Wigeon (hybrid)
Redhead x Ring-necked Duck (hybrid)
Common x Barrow's Goldeneye (hybrid)
Herring x Glaucous Gull (hybrid)
Glaucous x Glaucous-winged Gull (hybrid)
Western x Glaucous-winged Gull (hybrid)
Herring x Slaty-backed Gull (hybrid)
Yellow-bellied x Red-breasted Sapsucker (hybrid)
Tufted Duck x scaup sp. (hybrid)
White-crowned x Golden-crowned Sparrow (hybrid)
Snow x Greater White-fronted Goose (hybrid)
American Wigeon x Mallard (hybrid)
Snow x Cackling Goose (hybrid)
Glaucous x Slaty-backed Gull (hybrid)
Laysan x Black-footed Albatross (hybrid)
Northern Pintail x Green-winged Teal (hybrid)
Gadwall x Mallard (hybrid)
Cinnamon Teal x Northern Shoveler (hybrid)
Greater White-fronted x Cackling Goose (hybrid)
Ring-necked Duck x Greater Scaup (hybrid)
Blue-winged x Cinnamon Teal (hybrid)
Ring-necked Duck x scaup sp. (hybrid)
Anna's x Rufous Hummingbird (hybrid)
Spectacled x King Eider (hybrid)
Tufted Duck x Greater Scaup (hybrid)
Snow x McKay's Bunting (hybrid)
Graylag x Swan Goose (hybrid)
Dark-eyed Junco x White-throated Sparrow (hybrid)
Common x Hoary Redpoll (hybrid)
Snow x Canada Goose (hybrid)
goldeneye sp. x Hooded Merganser (hybrid)
Common Goldeneye x Hooded Merganser (hybrid)
Gadwall x Northern Pintail (hybrid)
Thick-billed x Common Murre (hybrid)
Blue-winged x Green-winged Teal (hybrid)
Greater White-fronted x Canada Goose (hybrid)
Townsend's x Hermit Warbler (hybrid)
Mallard x American Black Duck (hybrid)
Accipiter sp.
Common/Barrow's Goldeneye
Common/Red-breasted Merganser
Tree/Violet-green Swallow
Herring/Glaucous-winged Gull
Thick-billed/Common Murre
passerine sp.
Lesser/Greater Yellowlegs
White-winged/Stejneger's Scoter
shorebird sp.
Black-legged/Red-legged Kittiwake
crossbill sp.
Parasitic/Pomarine Jaeger
Western/Semipalmated Sandpiper
Short-billed/Long-billed Dowitcher
small plover sp.
Sooty/Short-tailed Shearwater
Gray-tailed/Wandering Tattler
Ruby-crowned/Golden-crowned Kinglet
American Three-toed/Black-backed Woodpecker
new world sparrow sp.
American/Pacific Golden-Plover (Lesser Golden-Plover)
Black-bellied Plover/golden-plover sp.
storm-petrel sp.
shearwater sp.
storm-petrel sp. (white-rumped)
Common/Yellow-billed Loon
King/Common Eider
Zonotrichia sp.
Domestic goose sp. (Domestic type)
Sharp-tailed/Pectoral Sandpiper
albatross sp.
procellariid sp.
Rose-breasted/Black-headed Grosbeak
Hen/Northern Harrier
pigeon/dove sp.
Phylloscopus sp.
Herring/Iceland Gull
Setophaga sp.
Common/Arctic Tern
Red-necked/Little Stint
sand-plover sp.
Alder/Willow Flycatcher (Traill's Flycatcher)
Common/Oriental Cuckoo
Taiga/Tundra Bean-Goose
Surf/Black Scoter
Common Ringed/Semipalmated Plover
Common/Short-billed Gull
large shorebird sp.
sapsucker sp.
Emberiza sp.
large falcon sp.
Snow/McKay's Bunting
Rusty/Brewer's Blackbird
Long-tailed/Parasitic Jaeger
Little/Least Tern
old world warbler sp.
Tundra/Whooper Swan
longspur sp.
bluebird sp.
Anna's/Costa's Hummingbird
Blue-winged/Cinnamon Teal
Hydrobates sp. (Band-rumped complex)
black-and-white shearwater sp.
white egret sp.
large tern sp.
Branta sp.
Double-crested/Neotropic Cormorant
Gray-streaked/Dark-sided Flycatcher
Selasphorus sp.
Tachycineta sp.
Great/Medium Egret
Spizella sp./American Tree Sparrow
Western/Eastern Wood-Pewee
Japanese Leaf/Arctic/Kamchatka Leaf Warbler
Rufous/Allen's Hummingbird
Dryobates sp.
Arctic/Kamchatka Leaf Warbler
cuckoo sp. (Cuculidae sp.)
pewee sp. (Contopus sp.)
House/Purple Finch
Buteo/eagle sp.
MacGillivray's/Mourning Warbler
Podiceps sp.
large albatross sp.
Connecticut/MacGillivray's/Mourning Warbler
Pterodroma sp.
Northern/Great Gray Shrike
storm-petrel sp. (dark-rumped)
Dusky/Naumann's Thrush
Snowy/Kentish Plover
Tree/Olive-backed Pipit