Updated ~29 hr(s) ago.
544 species (+204 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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Domestic goose sp. (Domestic type)
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Cackling/Canada Goose
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Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |||
Branta sp.
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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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Cinnamon Teal x Northern Shoveler (hybrid)
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Northern Shoveler x American Wigeon (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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Northern Shoveler 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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teal sp.
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dabbling duck sp.
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Ring-necked Duck x scaup sp. (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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merganser sp.
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duck sp.
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Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |||
waterfowl sp.
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new world quail sp.
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Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |||
Eurasian/African Collared-Dove
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quail-dove sp.
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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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Eastern/Mexican Whip-poor-will
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Chimney/Vaux's Swift
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Chaetura sp.
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swift sp.
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Anna's x Costa's Hummingbird (hybrid)
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Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |||
Anna's/Costa's Hummingbird
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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 | |||
rail/crake sp.
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American x Black Oystercatcher (hybrid)
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oystercatcher sp.
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American/Pacific Golden-Plover (Lesser Golden-Plover)
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golden-plover sp.
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Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |||
plover sp.
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curlew 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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Lesser/Greater Yellowlegs
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Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |||
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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Scolopacidae 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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auklet sp.
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large alcid 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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Scripps's/Guadalupe/Craveri's Murrelet
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murrelet sp.
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alcid sp.
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Laughing/Franklin's Gull
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Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |||
American Herring x Glaucous Gull (hybrid)
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Western x Glaucous-winged Gull (hybrid)
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American Herring x Glaucous-winged Gull (hybrid)
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Glaucous x Glaucous-winged Gull (hybrid)
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Western/Glaucous-winged Gull
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Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |||
Larus sp.
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gull sp.
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Forster's/Common Tern
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Common/Arctic Tern
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Sterna sp.
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Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |||
Elegant/Royal Tern
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tern sp.
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gull/tern sp.
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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 | |||
Arctic/Pacific Loon
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loon sp.
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albatross sp.
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Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |||
Leach's/Townsend's Storm-Petrel
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Leach's/Townsend's Storm-Petrel (dark-rumped)
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Leach's/Townsend's Storm-Petrel (white-rumped)
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storm-petrel sp. (dark-rumped)
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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 | |||
Cookilaria petrel sp.
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Pterodroma sp.
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Sooty/Short-tailed Shearwater
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Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |||
small shearwater sp.
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shearwater sp.
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procellariid sp.
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Masked/Nazca Booby
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Brown x Blue-footed Booby (hybrid)
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booby sp.
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Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |||
cormorant sp.
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Glossy/White-faced Ibis
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ibis sp.
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Yellow-crowned/Black-crowned Night Heron
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Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |||
Ardea sp.
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white egret sp.
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new world vulture 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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Accipitrine hawk sp. (former 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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eagle 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 x Red-naped Sapsucker (hybrid)
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Yellow-bellied/Red-naped Sapsucker
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Red-naped x Red-breasted Sapsucker (hybrid)
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Yellow-bellied/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 | |||
Downy x Nuttall's Woodpecker (hybrid)
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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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falcon sp.
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diurnal raptor sp.
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amazon sp.
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parrot sp.
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Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |||
Western/Eastern Wood-Pewee
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pewee sp. (Contopus sp.)
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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 | |||
Myiarchus sp.
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Cassin's/Western Kingbird
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yellow-bellied kingbird sp.
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Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |||
Tyrannus sp.
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new world flycatcher sp.
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Cassin's/Blue-headed Vireo
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Cassin's/Plumbeous Vireo
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solitary vireo sp.
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Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |||
Philadelphia/Warbling Vireo
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vireo sp.
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jay sp.
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Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |||
Pica sp.
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crow/raven sp.
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chickadee sp.
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Tree/Violet-green Swallow
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Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |||
Tachycineta sp.
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Cliff/Cave Swallow
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swallow sp.
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Ruby-crowned/Golden-crowned Kinglet
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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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Pacific/Winter Wren
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Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |||
wren sp.
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mimid 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 | |||
estrildid finch sp.
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pipit sp.
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House/Purple Finch
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Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |||
Purple/Cassin's Finch
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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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Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |||
longspur sp.
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Spizella sp.
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Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |||
White-crowned x Golden-crowned Sparrow (hybrid)
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White-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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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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Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |||
Bullock's/Baltimore Oriole
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new world oriole sp.
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Red-winged/Tricolored Blackbird
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Brewer's Blackbird x Great-tailed Grackle (hybrid)
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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 | |||
Louisiana/Northern Waterthrush
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Leiothlypis 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 | |||
Bay-breasted/Blackpoll Warbler
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Black-throated Gray/Townsend's Warbler
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Townsend's x Hermit Warbler (hybrid)
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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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Rose-breasted x Black-headed Grosbeak (hybrid)
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Rose-breasted/Black-headed Grosbeak
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Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |||
Pheucticus sp.
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Lazuli/Indigo Bunting
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Passerina sp.
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passerine sp.
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bird sp.
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KEY:| = insufficient data | = rare to widespread