Updated ~22 hr(s) ago.
430 species (+173 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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Snow x Cackling Goose (hybrid)
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Ross's x Cackling Goose (hybrid)
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Greater White-fronted x Cackling Goose (hybrid)
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Swan Goose x Canada Goose (hybrid)
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Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |||
Greater White-fronted x Canada Goose (hybrid)
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Graylag x Canada Goose (hybrid)
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Snow x Canada Goose (hybrid)
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Ross's x Canada Goose (hybrid)
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Cackling/Canada Goose
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Snow/Ross's x Cackling/Canada Goose (hybrid)
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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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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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Gadwall x Mallard (hybrid)
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American Wigeon x Mallard (hybrid)
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Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |||
Mallard x Mexican Duck (hybrid)
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Mallard/Mexican Duck
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Mallard x Mottled Duck (hybrid)
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Mallard x Northern Pintail (hybrid)
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Blue-winged x Green-winged Teal (hybrid)
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teal sp.
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dabbling duck sp.
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Redhead x Greater Scaup (hybrid)
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Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |||
Ring-necked Duck x Lesser Scaup (hybrid)
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Greater/Lesser Scaup
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Aythya sp.
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Common/Barrow's Goldeneye
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Common/Red-breasted Merganser
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Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |||
merganser sp.
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duck sp.
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Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |||
Horned/Eared Grebe
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Western x Clark's Grebe (hybrid)
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Western/Clark's Grebe
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grebe sp.
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Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |||
Rock/Band-tailed Pigeon
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Streptopelia sp.
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pigeon/dove sp.
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nighthawk 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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large swift sp.
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swift sp.
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Ruby-throated/Black-chinned Hummingbird
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Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |||
Rufous/Allen's Hummingbird
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Selasphorus sp.
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hummingbird sp.
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rail/crake 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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Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |||
Red/Red-necked Phalarope
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phalarope sp.
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Lesser/Greater Yellowlegs
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Tringa sp.
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Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |||
Western/Semipalmated Sandpiper
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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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Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |||
Laughing x Ring-billed Gull (hybrid)
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Herring x Glaucous Gull (hybrid)
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Herring x Lesser Black-backed Gull (hybrid)
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Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |||
Herring x California Gull (hybrid)
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Herring x Glaucous-winged Gull (hybrid)
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Herring/Iceland Gull
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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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tern sp.
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Common/Yellow-billed Loon
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loon sp.
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Double-crested/Neotropic Cormorant
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cormorant sp.
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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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heron sp.
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white egret sp.
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Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |||
Glossy x White-faced Ibis (hybrid)
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Glossy/White-faced Ibis
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Sharp-shinned/Cooper's Hawk
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Cooper's Hawk/American Goshawk
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Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |||
Accipiter sp.
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Buteo sp.
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Buteo/eagle sp.
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hawk sp.
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eagle sp.
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Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |||
owl sp.
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Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |||
Yellow-bellied x Red-naped Sapsucker (hybrid)
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Yellow-bellied/Red-naped Sapsucker
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sapsucker sp.
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Downy x Hairy Woodpecker (hybrid)
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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 | |||
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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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 | |||
Alder/Willow Flycatcher (Traill's Flycatcher)
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Hammond's/Dusky Flycatcher
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Gray/Dusky Flycatcher
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Empidonax sp.
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Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |||
phoebe sp.
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Myiarchus sp.
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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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solitary vireo sp.
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vireo sp.
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Loggerhead/Northern Shrike
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shrike sp.
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Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |||
jay sp.
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raven sp.
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crow/raven sp.
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Black-capped x Mountain Chickadee (hybrid)
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Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |||
Black-capped/Mountain Chickadee
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chickadee sp.
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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 | |||
Ruby-crowned/Golden-crowned Kinglet
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nuthatch sp.
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Pacific/Winter Wren
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Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |||
Sedge/Marsh Wren
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wren sp.
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Curve-billed/Bendire's Thrasher
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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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Bohemian/Cedar Waxwing
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Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |||
rosy-finch sp.
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Purple/Cassin's Finch
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Haemorhous sp.
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Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |||
crossbill sp.
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new world goldfinch 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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Spizella sp./American Tree Sparrow
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Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |||
Zonotrichia sp.
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Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |||
Spotted x Eastern Towhee (hybrid)
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Spotted/Eastern Towhee (Rufous-sided Towhee)
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towhee sp.
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new world sparrow sp.
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Eastern/Chihuahuan Meadowlark
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Sturnella meadowlark 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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Bullock's/Baltimore Oriole
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new world oriole sp.
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Rusty/Brewer's Blackbird
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grackle sp.
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blackbird sp.
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Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |||
MacGillivray's/Mourning Warbler
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Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |||
Hooded x Yellow Warbler (hybrid)
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Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |||
Townsend's x Black-throated Green Warbler (hybrid)
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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 | |||
tanager sp. (Piranga sp.)
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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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Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |||
Passerina sp.
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passerine sp.
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KEY:| = insufficient data | = rare to widespread