Updated ~40 hr(s) ago.
473 species (+170 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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Graylag x Swan Goose (hybrid)
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Greater/Lesser White-fronted Goose
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Domestic goose sp. (Domestic type)
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Swan Goose x Canada Goose (hybrid)
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Greater White-fronted x Canada Goose (hybrid)
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Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |||
Graylag x Canada Goose (hybrid)
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Domestic goose sp. x Canada Goose (hybrid)
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Cackling/Canada Goose
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Branta sp.
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Trumpeter/Tundra Swan
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swan sp.
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goose sp.
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Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |||
Blue-winged x Cinnamon Teal (hybrid)
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Blue-winged/Cinnamon Teal
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Blue-winged Teal x Northern Shoveler (hybrid)
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Cinnamon Teal x Northern Shoveler (hybrid)
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Eurasian x American Wigeon (hybrid)
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Eurasian/American Wigeon
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Muscovy Duck x Mallard (hybrid)
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Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |||
Gadwall x Mallard (hybrid)
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American Wigeon x Mallard (hybrid)
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teal sp.
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dabbling duck sp.
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Redhead x Ring-necked Duck (hybrid)
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Greater/Lesser Scaup
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Aythya 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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Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |||
Common/Red-breasted Merganser
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merganser sp.
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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 | |||
pheasant 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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grebe sp.
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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 | |||
Chimney/Vaux's Swift
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swift sp.
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Anna's x Costa's Hummingbird (hybrid)
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Anna's/Costa's Hummingbird
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Anna's x Allen's Hummingbird (hybrid)
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Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |||
Rufous/Allen's Hummingbird
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Anna's Hummingbird x Selasphorus sp. (hybrid)
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Selasphorus sp.
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hummingbird sp.
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large rail sp.
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rail/crake sp.
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Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |||
American x Black Oystercatcher (hybrid)
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American/Pacific Golden-Plover (Lesser Golden-Plover)
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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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jaeger sp.
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Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |||
Scripps's/Guadalupe Murrelet (Xantus'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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Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |||
Herring x Glaucous-winged Gull (hybrid)
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Western/Glaucous-winged Gull
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Herring/Iceland Gull
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white-winged gull sp.
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Larus sp.
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gull sp.
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Sterna sp.
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Elegant/Royal Tern
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Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |||
large tern sp.
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tern sp.
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loon sp.
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albatross sp.
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storm-petrel sp.
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Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |||
Sooty/Short-tailed Shearwater
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black-and-white shearwater sp.
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shearwater sp.
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frigatebird sp.
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Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |||
cormorant sp.
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Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |||
white egret sp.
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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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hawk sp.
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owl sp.
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Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |||
Yellow-bellied/Red-naped Sapsucker
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Red-naped x Red-breasted Sapsucker (hybrid)
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Red-naped/Red-breasted Sapsucker
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sapsucker sp.
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Downy x Nuttall's Woodpecker (hybrid)
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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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woodpecker sp.
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Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |||
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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lovebird sp.
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Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |||
Amazona sp.
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Mitred/Red-masked Parakeet
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Psittacara sp.
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large parakeet sp. (former Aratinga sp.)
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parakeet sp.
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Empidonax 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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Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |||
Cassin's/Blue-headed Vireo
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Cassin's/Plumbeous Vireo
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vireo sp.
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shrike 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 | |||
Tree/Violet-green Swallow
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swallow sp.
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Zosterops sp.
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Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |||
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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thrush sp.
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Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |||
House/Purple Finch
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Purple/Cassin's Finch
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Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |||
Haemorhous sp.
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new world goldfinch sp.
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Spinus sp.
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finch 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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Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |||
Golden-crowned x White-throated Sparrow (hybrid)
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Zonotrichia sp.
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Sagebrush/Bell's Sparrow (Sage Sparrow)
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Ammospiza sp.
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Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |||
new world sparrow sp.
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Orchard/Hooded Oriole
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Bullock's/Baltimore Oriole
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Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |||
new world oriole sp.
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Red-winged/Tricolored Blackbird
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Rusty/Brewer's Blackbird
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blackbird sp.
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Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |||
Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |||
Townsend's x Hermit Warbler (hybrid)
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Townsend's/Hermit Warbler
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Setophaga sp.
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new world warbler sp.
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Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |||
Lazuli/Indigo Bunting
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passerine sp.
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bird sp.
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KEY:| = insufficient data | = rare to widespread