Updated ~38 hr(s) ago.
567 species (+181 other taxa) | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | ||
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Snow x Ross's Goose (hybrid)
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Snow/Ross's Goose
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Taiga/Tundra Bean-Goose
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Domestic goose sp. (Domestic type)
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Greater White-fronted x Canada Goose (hybrid)
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Domestic goose sp. x Canada Goose (hybrid)
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Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |||
Cackling/Canada Goose
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Trumpeter/Tundra Swan
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goose sp.
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Blue-winged x Cinnamon Teal (hybrid)
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Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |||
Blue-winged/Cinnamon Teal
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Cinnamon Teal x Northern Shoveler (hybrid)
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Eurasian x American Wigeon (hybrid)
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Muscovy Duck x Mallard (hybrid)
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Gadwall x Mallard (hybrid)
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Mallard x Mexican Duck (hybrid)
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Mallard x Northern Pintail (hybrid)
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teal sp.
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Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |||
dabbling duck sp.
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Greater/Lesser Scaup
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Aythya sp.
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eider sp.
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Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |||
Surf/Black Scoter
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scoter sp.
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Bufflehead x Common Goldeneye (hybrid)
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Common x Barrow's Goldeneye (hybrid)
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Common/Barrow's Goldeneye
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Barrow's Goldeneye x Hooded Merganser (hybrid)
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Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |||
duck sp.
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waterfowl sp.
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California x Gambel's Quail (hybrid)
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California/Gambel's Quail
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new world quail sp.
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Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |||
flamingo sp.
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Horned/Eared Grebe
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Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |||
Western x Clark's Grebe (hybrid)
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Western/Clark's Grebe
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Rock/Band-tailed Pigeon
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pigeon/dove sp.
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Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |||
nighthawk sp.
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Chimney/Vaux's Swift
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Chaetura sp.
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swift sp.
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Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |||
Ruby-throated/Black-chinned Hummingbird
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Anna's x Costa's Hummingbird (hybrid)
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Rufous/Allen's Hummingbird
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Selasphorus sp.
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hummingbird sp.
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Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |||
moorhen/coot/gallinule sp.
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rail/crake sp.
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American x Black Oystercatcher (hybrid)
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American/Black Oystercatcher
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Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |||
American/Pacific Golden-Plover (Lesser Golden-Plover)
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golden-plover sp.
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Black-bellied Plover/golden-plover sp.
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small plover sp.
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plover sp.
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Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |||
Short-billed/Long-billed Dowitcher
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Red/Red-necked Phalarope
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phalarope sp.
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Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |||
Lesser/Greater Yellowlegs
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Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |||
peep sp.
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Calidris sp.
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large shorebird sp.
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shorebird sp.
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Long-tailed/Parasitic Jaeger
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Parasitic/Pomarine Jaeger
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Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |||
jaeger sp.
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large alcid sp.
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Scripps's/Guadalupe Murrelet (Xantus's Murrelet)
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Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |||
Scripps's/Guadalupe/Craveri's Murrelet
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murrelet sp.
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alcid sp.
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Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |||
Yellow-footed/Western Gull
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Herring x Glaucous Gull (hybrid)
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Western x Glaucous-winged Gull (hybrid)
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Herring x Glaucous-winged Gull (hybrid)
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Glaucous x Glaucous-winged Gull (hybrid)
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Larus sp.
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gull sp.
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Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |||
Forster's/Common Tern
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Common/Arctic Tern
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Sterna sp.
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Elegant/Royal Tern
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large tern sp.
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Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |||
tern sp.
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Arctic/Pacific Loon
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loon sp.
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Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |||
Leach's/Townsend's Storm-Petrel (dark-rumped)
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Leach's/Townsend's/Ainley's Storm-Petrel
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storm-petrel sp. (white-rumped)
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storm-petrel sp.
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Galapagos/Hawaiian Petrel (Dark-rumped Petrel)
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Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |||
Pterodroma sp.
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Sooty/Short-tailed Shearwater
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black-and-white shearwater sp.
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shearwater sp.
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Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |||
booby sp.
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cormorant sp.
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Yellow-crowned x Black-crowned Night Heron (hybrid)
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Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |||
Yellow-crowned/Black-crowned Night Heron
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white egret sp.
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Glossy x White-faced Ibis (hybrid)
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Glossy/White-faced Ibis
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Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |||
Sharp-shinned/Cooper's Hawk
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Accipiter sp.
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Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |||
Buteo sp.
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Buteo/eagle sp.
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hawk sp.
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Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |||
owl sp.
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Yellow-bellied/Red-naped Sapsucker
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Red-naped x Red-breasted Sapsucker (hybrid)
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sapsucker sp.
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Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |||
Nuttall's x Ladder-backed Woodpecker (hybrid)
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Nuttall's/Ladder-backed Woodpecker
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Downy/Hairy Woodpecker
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Dryobates sp.
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Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |||
Northern/Gilded Flicker
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woodpecker sp.
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large falcon sp.
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small falcon sp.
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falcon sp.
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diurnal raptor sp.
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Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |||
lovebird sp.
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Amazona sp.
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Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |||
Mitred/Red-masked Parakeet
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large parakeet sp. (former Aratinga sp.)
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parakeet sp.
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parrot sp.
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Western/Eastern Wood-Pewee
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pewee sp. (Contopus sp.)
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Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |||
Hammond's/Dusky Flycatcher
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Empidonax sp.
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Myiarchus sp.
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Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |||
Cassin's/Western Kingbird
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yellow-bellied kingbird sp.
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new world flycatcher sp.
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Cassin's/Blue-headed Vireo
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Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |||
Cassin's/Plumbeous Vireo
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solitary vireo sp.
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vireo sp.
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Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |||
California/Woodhouse's Scrub-Jay
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crow/raven sp.
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chickadee sp.
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Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |||
Oak/Juniper Titmouse (Plain Titmouse)
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Tree/Violet-green Swallow
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swallow sp.
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Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |||
nuthatch sp.
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gnatcatcher sp.
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Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |||
wren sp.
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Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |||
bluebird sp.
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Catharus sp.
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Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |||
thrush sp.
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estrildid finch sp.
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Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |||
House/Purple Finch
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Haemorhous sp.
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Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |||
new world goldfinch sp.
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longspur sp.
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Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |||
Spizella sp.
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White-crowned x Golden-crowned Sparrow (hybrid)
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Zonotrichia sp.
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Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |||
Sagebrush/Bell's Sparrow (Sage Sparrow)
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towhee sp.
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new world sparrow sp.
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Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |||
Bullock's x Baltimore Oriole (hybrid)
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new world oriole sp.
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Red-winged/Tricolored Blackbird
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Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |||
blackbird sp.
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Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |||
Leiothlypis sp.
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Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |||
Yellow-rumped x Black-throated Gray Warbler (hybrid)
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Townsend's x Hermit Warbler (hybrid)
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Black-throated Gray/Hermit Warbler
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Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |||
Setophaga sp.
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new world warbler sp.
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tanager sp. (Piranga sp.)
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Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |||
Rose-breasted x Black-headed Grosbeak (hybrid)
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Rose-breasted/Black-headed Grosbeak
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Lazuli x Indigo Bunting (hybrid)
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Lazuli/Indigo Bunting
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Passerina sp.
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passerine sp.
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KEY:| = insufficient data | = rare to widespread