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Ridgefield NWR--River 'S' Unit
Bird List
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Native and Naturalized (239)
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Exotic: Provisional (1)
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Exotic: Escapee (2)
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Hybrids (9)
- Eurasian x American Wigeon (hybrid) Mareca penelope x americanaDetails:
- Western x Glaucous-winged Gull (hybrid) Larus occidentalis x glaucescens
- Herring x Glaucous-winged Gull (hybrid) Larus argentatus x glaucescensDetails:
- Blue-winged x Cinnamon Teal (hybrid) Spatula discors x cyanopteraDetails:
- Blue-winged Teal x Northern Shoveler (hybrid) Spatula discors x clypeataDetails:
- Domestic goose sp. x Canada Goose (hybrid) Anser sp. (Domestic type) x Branta canadensis
- Graylag x Canada Goose (hybrid) Anser anser x Branta canadensisDetails:
- Barnacle x Cackling Goose (hybrid) Branta leucopsis x hutchinsii
- American Wigeon x Mallard (hybrid) Mareca americana x Anas platyrhynchosDetails:
Additional Taxa (64)
- swallow sp. Hirundinidae sp.
- hummingbird sp. Trochilidae sp.
- Short-billed/Long-billed Dowitcher Limnodromus griseus/scolopaceus
- peep sp. Calidris sp. (peep sp.)
- Tree/Violet-green Swallow Tachycineta bicolor/thalassina
- Lesser/Greater Yellowlegs Tringa flavipes/melanoleuca
- duck sp. Anatidae (duck sp.)
- shorebird sp. Charadriiformes sp.
- hawk sp. Accipitridae sp. (hawk sp.)
- Greater/Lesser Scaup Aythya marila/affinis
- Blue-winged/Cinnamon Teal Spatula discors/cyanoptera
- waterfowl sp. Anatidae sp.
- gull sp. Larinae sp.
- new world flycatcher sp. Tyrannidae sp.
- vireo sp. Vireo sp.
- nuthatch sp. Sitta sp.
- falcon sp. Falco sp.
- Buteo sp. Buteo sp.
- new world warbler sp. Parulidae sp.
- Cackling/Canada Goose Branta hutchinsii/canadensis
- Trumpeter/Tundra Swan Cygnus buccinator/columbianusDetails:
- goose sp. Anatidae (goose sp.)
- Zonotrichia sp. Zonotrichia sp.Details:
- pigeon/dove sp. Columbidae sp.
- owl sp. Strigiformes sp.
- dabbling duck sp. Anatidae sp. (dabbling duck sp.)
- diurnal raptor sp. Accipitriformes/Falconiformes sp.
- Larus sp. Larus sp.
- chickadee sp. Poecile sp.
- House/Purple Finch Haemorhous mexicanus/purpureus
- Aythya sp. Aythya sp.
- Downy/Hairy Woodpecker Dryobates pubescens/villosus
- loon sp. Gavia sp.
- new world sparrow sp. Passerellidae sp.
- woodpecker sp. Picidae sp.
- Accipiter sp. Accipiter sp.
- passerine sp. Passeriformes sp.
- blackbird sp. Icteridae sp.
- Empidonax sp. Empidonax sp.
- wren sp. Troglodytidae sp.
- new world goldfinch sp. Spinus sp. (goldfinch sp.)
- rail/crake sp. Rallidae sp. (rail/crake sp.)
- Sharp-shinned/Cooper's Hawk Accipiter striatus/cooperii
- bird sp. Aves sp.Details:
- Common/Barrow's Goldeneye Bucephala clangula/islandica
- crow/raven sp. Corvus sp.
- finch sp. Fringillidae sp.
- phalarope sp. Phalaropus sp.Details:
- Western/Clark's Grebe Aechmophorus occidentalis/clarkiiDetails:
- jay sp. Corvidae sp. (jay sp.)
- Western/Glaucous-winged Gull Larus occidentalis/glaucescens
- Domestic goose sp. (Domestic type) Anser sp. (Domestic type)
- cormorant sp. Phalacrocoracidae sp.Details:
- phoebe sp. Sayornis sp.Details:
- Snow/Ross's Goose Anser caerulescens/rossiiDetails:
- California/Woodhouse's Scrub-Jay Aphelocoma californica/woodhouseii
- swan sp. Cygnus sp.Details:
- ibis sp. Threskiornithidae sp. (ibis sp.)Details:
- tern sp. Sterninae sp.Details:
- eagle sp. Accipitridae sp. (eagle sp.)
- gull/tern sp. Laridae sp.Details:
- crow sp. Corvus sp. (crow sp.)
- grebe sp. Podicipedidae sp.Details:
- Glossy/White-faced Ibis Plegadis falcinellus/chihiDetails: