Updated ~30 hr(s) ago.
880 species (+249 other taxa) | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | ||
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whistling-duck sp.
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Domestic goose sp. (Domestic type)
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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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Cackling/Canada Goose
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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/Cinnamon Teal
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Eurasian/American Wigeon
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Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |||
Muscovy Duck x Mallard (hybrid)
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Mallard x Hawaiian Duck (hybrid)
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Mallard/Hawaiian Duck
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Mallard x Mexican Duck (hybrid)
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Mallard/Mexican Duck
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Mallard x American Black Duck (hybrid)
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Mallard/American Black Duck
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Mallard x Mottled Duck (hybrid)
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Mallard/Mottled Duck
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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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King/Common Eider
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eider sp.
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Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |||
White-winged/Stejneger's Scoter
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Surf/Black Scoter
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scoter 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 | |||
duck sp.
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waterfowl sp.
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Scaled x Gambel's Quail (hybrid)
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Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |||
ptarmigan sp.
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grouse sp.
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Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |||
flamingo sp.
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Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |||
Western/Clark's Grebe
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grebe sp.
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Rock/Band-tailed Pigeon
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Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |||
pigeon/dove sp.
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Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |||
Yellow-billed/Black-billed Cuckoo
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nighthawk sp.
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Chimney/Vaux's Swift
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Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |||
Chaetura 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 | |||
Lucifer 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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Rivoli's x Berylline Hummingbird (hybrid)
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Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |||
hummingbird sp.
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King/Clapper Rail
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large rail sp.
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King/Virginia Rail
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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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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 | |||
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 | |||
godwit sp.
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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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Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |||
Tringa sp.
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Great Knot x Surfbird (hybrid)
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Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |||
Dunlin x White-rumped Sandpiper (hybrid)
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Western/Semipalmated Sandpiper
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peep sp.
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Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |||
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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jaeger sp.
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Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |||
Thick-billed/Common Murre
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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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Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |||
Black-headed x Ring-billed Gull (hybrid)
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Laughing x Ring-billed Gull (hybrid)
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Herring x Glaucous Gull (hybrid)
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Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |||
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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Herring/Glaucous-winged Gull
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Western/Glaucous-winged 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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Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |||
Brown/Black Noddy
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Sooty/Bridled Tern
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Little/Least Tern
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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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Elegant/Royal Tern
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Thalasseus sp.
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large tern sp.
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tern sp.
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Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |||
loon 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. (white-rumped)
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storm-petrel sp.
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Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |||
Galapagos/Hawaiian Petrel (Dark-rumped Petrel)
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Pterodroma sp.
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Cory's/Great Shearwater
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Sooty/Short-tailed Shearwater
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Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |||
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 | |||
Masked/Nazca Booby
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booby sp.
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sulid sp.
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Double-crested/Neotropic Cormorant
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Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |||
cormorant 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 | |||
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 | |||
new world vulture sp.
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Sharp-shinned/Cooper's Hawk
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Cooper's Hawk/American Goshawk
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Accipiter sp.
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Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |||
Golden/Bald Eagle
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Red-shouldered/Broad-winged Hawk
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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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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/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 | |||
Downy/Hairy Woodpecker
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Dryobates sp.
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Northern/Gilded Flicker
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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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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 | |||
White-winged/Yellow-chevroned Parakeet
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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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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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Alder/Willow Flycatcher (Traill's Flycatcher)
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Hammond's/Dusky Flycatcher
|
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Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |||
Gray/Dusky Flycatcher
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Empidonax sp.
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phoebe sp.
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Myiarchus sp.
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Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |||
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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Tyrannus sp.
|
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Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |||
new world flycatcher sp.
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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 | |||
vireo sp.
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Loggerhead/Northern Shrike
|
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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 sp.
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Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |||
raven sp.
|
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crow/raven sp.
|
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Carolina x Black-capped Chickadee (hybrid)
|
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Carolina/Black-capped Chickadee
|
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Black-capped x Mountain Chickadee (hybrid)
|
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Black-capped/Mountain Chickadee
|
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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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Tufted x Black-crested Titmouse (hybrid)
|
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Tufted/Black-crested 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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Cliff/Cave 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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Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |||
gnatcatcher sp.
|
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Pacific/Winter Wren
|
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Sedge/Marsh Wren
|
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Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |||
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 | |||
Toxostoma sp.
|
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bluebird sp.
|
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Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |||
Gray-cheeked/Bicknell's Thrush
|
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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 | |||
Bohemian/Cedar Waxwing
|
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Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |||
House/Eurasian Tree Sparrow
|
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pipit 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 | |||
rosy-finch sp.
|
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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 | |||
Common/Hoary Redpoll
|
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redpoll sp.
|
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new world goldfinch 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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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 | |||
Sagebrush/Bell's Sparrow (Sage Sparrow)
|
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Nelson's/Saltmarsh Sparrow (Sharp-tailed Sparrow)
|
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Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |||
Canyon/Abert's Towhee
|
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Spotted x Eastern Towhee (hybrid)
|
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Spotted/Eastern Towhee (Rufous-sided Towhee)
|
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new world sparrow sp.
|
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Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |||
Western/Eastern Meadowlark
|
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Western/Chihuahuan Meadowlark
|
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Sturnella meadowlark sp.
|
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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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Bronzed/Brown-headed Cowbird
|
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Boat-tailed/Great-tailed Grackle
|
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grackle sp.
|
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Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |||
blackbird sp.
|
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Louisiana/Northern Waterthrush
|
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Brewster's Warbler (hybrid)
|
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Lawrence's Warbler (hybrid)
|
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Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |||
Leiothlypis sp.
|
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Connecticut/MacGillivray's/Mourning Warbler
|
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Mourning Warbler x Common Yellowthroat (hybrid)
|
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Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |||
Bay-breasted/Blackpoll Warbler
|
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Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |||
Black-throated Gray/Townsend's Warbler
|
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Townsend's x Hermit Warbler (hybrid)
|
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Townsend's/Hermit Warbler
|
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Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |||
new world warbler sp.
|
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tanager sp. (Piranga sp.)
|
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Northern Cardinal/Pyrrhuloxia
|
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Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |||
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.
|
KEY:| = insufficient data | = rare to widespread