Updated ~22 hr(s) ago.
585 species (+228 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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Domestic goose sp. (Domestic type)
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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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Greater White-fronted x Canada Goose (hybrid)
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Graylag x Canada Goose (hybrid)
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Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |||
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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Gadwall x American Wigeon (hybrid)
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Eurasian x American Wigeon (hybrid)
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Muscovy Duck x Mallard (hybrid)
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Wood 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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Blue-winged x Green-winged Teal (hybrid)
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teal sp.
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dabbling duck sp.
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Ring-necked Duck x Lesser Scaup (hybrid)
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Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |||
Greater/Lesser Scaup
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Aythya sp.
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White-winged/Stejneger's Scoter
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Surf/Black Scoter
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scoter sp.
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Bufflehead x Common Goldeneye (hybrid)
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Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |||
Common x Barrow's Goldeneye (hybrid)
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Common/Barrow's Goldeneye
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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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Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |||
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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grouse sp.
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Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |||
American/Greater Flamingo
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flamingo sp.
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Horned/Eared Grebe
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Podiceps sp.
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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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ground dove/Inca Dove
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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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nightjar 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 | |||
Anna's x Costa's Hummingbird (hybrid)
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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 | |||
moorhen/coot/gallinule sp.
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rail/crake sp.
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American x Black Oystercatcher (hybrid)
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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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Black-bellied Plover/golden-plover sp.
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small plover sp.
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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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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 | |||
Sharp-tailed/Pectoral 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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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 | |||
large alcid sp.
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Scripps's/Guadalupe Murrelet (Xantus's Murrelet)
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Scripps's/Craveri'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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Western/Glaucous-winged 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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Sandwich x Elegant Tern (hybrid)
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Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |||
Elegant/Royal Tern
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large tern sp.
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tern sp.
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gull/tern sp.
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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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storm-petrel sp. (dark-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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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 | |||
Masked/Nazca Booby
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booby sp.
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cormorant sp.
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Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |||
heron sp.
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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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ibis 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 | |||
Common Black x Red-shouldered Hawk (hybrid)
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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 | |||
Spotted x Barred Owl (hybrid)
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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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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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Northern/Gilded Flicker
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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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Psittacula sp.
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Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |||
White-winged/Yellow-chevroned Parakeet
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Brotogeris 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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Psittacara sp.
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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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Alder/Willow Flycatcher (Traill's Flycatcher)
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Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |||
Hammond's/Dusky Flycatcher
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Gray/Dusky Flycatcher
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Empidonax sp.
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phoebe sp.
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Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |||
Myiarchus sp.
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Tropical/Couch's Kingbird
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Cassin's/Western Kingbird
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yellow-bellied kingbird sp.
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Western Kingbird x Scissor-tailed Flycatcher (hybrid)
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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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Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |||
California/Woodhouse's Scrub-Jay
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Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |||
crow/raven sp.
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chickadee sp.
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Oak/Juniper Titmouse (Plain Titmouse)
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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 | |||
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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Toxostoma 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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Varied Thrush/American Robin
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thrush sp.
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Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |||
Lonchura sp.
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cordonbleu sp.
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estrildid finch sp.
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Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |||
pipit sp.
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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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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 | |||
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 | |||
Sturnella meadowlark sp.
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Bullock's/Baltimore Oriole
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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 | |||
grackle sp.
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blackbird sp.
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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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Yellow-rumped x Townsend's 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 | |||
Townsend's/Hermit Warbler
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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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Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |||
passerine sp.
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bird sp.
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KEY:| = insufficient data | = rare to widespread