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Bird List

Updated ~15 hours ago
294 All Years 207 This Year 2024 1 This Month Jun 2024
Last Observed First Observed High Count

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  1. Species Name
    Count
    Date
    Observer
    Location

Native and Naturalized (293)

  1. Snowy Owl Bubo scandiacus
    # Count: 1
    Date:
    Observer: Frank Hall
    Location: Delevan NWR
  2. Summer Tanager Piranga rubra
    # Count: 1
    Date:
    Observer: North CV Historical Records
    Location: Butte Sink (COL Co.)
  3. Jack Snipe Lymnocryptes minimus
    # Count: 1
    Date:
    Observer: Robert McNab
    Location: Colusa NWR
  4. Whooper Swan Cygnus cygnus
    # Count: 1
    Date:
    Observer: Dan Brown
    Location: Tule Rd. (Colusa Co.)
  5. Lark Bunting Calamospiza melanocorys
    # Count: 1
    Date:
    Observer: Steve Glover
    Location: Maxwell Sites Rd.
  6. Gray Flycatcher Empidonax wrightii
    # Count: 1
    Date:
    Observer: John Luther
    Location: Goat Mtn. area (COL Co.)
  7. Hooded Warbler Setophaga citrina
    # Count: 1
    Date:
    Observer: North CV Historical Records
    Location: East Park Reservoir
  8. Swamp Sparrow Melospiza georgiana
    # Count: 1
    Date:
    Observer: North CV Historical Records
    Location: East Park Reservoir
  9. Long-tailed Duck Clangula hyemalis
    # Count: 1
    Date:
    Observer: John Luther
    Location: Delevan NWR--Maxwell Rd. viewing area
  10. Black-and-white Warbler Mniotilta varia
    # Count: 1
    Date:
    Observer: Kim Kreitinger
    Location: Audubon Wattis Sanctuary
  11. Harris's Sparrow Zonotrichia querula
    # Count: 1
    Date:
    Observer: Diane Rose
    Location: Colusa-Sacramento River SRA
  12. Brant Branta bernicla
    # Count: 1
    Date:
    Observer: North CV Historical Records
    Location: Colusa NWR
  13. Western Gull Larus occidentalis
    # Count: 1
    Date:
    Observer: John Luther
    Location: Lone Star Rd.
  14. Cape May Warbler Setophaga tigrina
    # Count: 1
    Date:
    Observer: Dana Howard
    Location: Colusa NWR--walking trail
  15. Black-chinned Sparrow Spizella atrogularis
    # Count: 1
    Date:
    Observer: John Luther
    Location: Fout Springs Rd 5 mile marker
  16. Falcated Duck Mareca falcata
    # Count: 1
    Date:
    Observer: Eric VanderWerf
    Location: Colusa NWR
  17. Thick-billed Longspur Rhynchophanes mccownii
    # Count: 1
    Date:
    Observer: John Sterling
    Location: US-CA-Knights Landing - 38.9251x-121.8748 - Feb 18, 2015, 2:20 PM
  18. Pygmy Nuthatch Sitta pygmaea
    # Count: 3
    Date:
    Observer: John Luther
    Location: Cedar Camp Campground
  19. American Goshawk Accipiter atricapillus
    # Count: 1
    Date:
    Observer: Kathy Jones
    Location: Maxwell, ca
  20. Brown Pelican Pelecanus occidentalis
    # Count: 1
    Date:
    Observer: Richard Laursen
    Location: Colusa NWR
  21. Red Phalarope Phalaropus fulicarius
    # Count: 2
    Date:
    Observer: Diane Rose
    Location: Colusa NWR--Abel Rd.
  22. Stilt Sandpiper Calidris himantopus
    # Count: 1
    Date:
    Observer: Ken Schneider
    Location: Lone Star Rd.
  23. Pacific Golden-Plover Pluvialis fulva
    # Count: 1
    Date:
    Observer: Stuart Angerer
    Location: Poundstone Rd. South
  24. Northern Waterthrush Parkesia noveboracensis
    # Count: 1
    Date:
    Observer: Will Anderson
    Location: Colusa NWR--Auto Tour Route
  25. Barred Owl Strix varia
    # Count: 1
    Date:
    Observer: Jim Rowoth
    Location: Cedar Camp Campground
  26. Brewer's Sparrow Spizella breweri
    # Count: 1
    Date:
    Observer: Michael Rogner
    Location: Willow Bend (restricted access)
  27. Mountain Plover Anarhynchus montanus
    # Count: 35
    Date:
    Observer: Ken Ealy
    Location: CA-45, Knights Landing US-CA (38.9689,-121.8622)
  28. Snowy Plover Anarhynchus nivosus
    # Count: 1
    Date:
    Observer: Michele Swartout
    Location: Colusa NWR--Abel Rd.
  29. Buff-breasted Sandpiper Calidris subruficollis
    # Count: 1
    Date:
    Observer: Katie Stoner
    Location: Sycamore Cutoff
  30. Glaucous Gull Larus hyperboreus
    # Count: 1
    Date:
    Observer: Kirk Swenson
    Location: Border Tule Wildlife Habitat (private - view from White Rd)
  31. Short-billed Gull Larus brachyrhynchus
    # Count: 1
    Date:
    Observer: Anonymous eBirder
    Location: Border Tule Wildlife Habitat (private - view from White Rd)
  32. Yellow-bellied Sapsucker Sphyrapicus varius
    # Count: 1
    Date:
    Observer: Eric Ongman
    Location: 1st and Jay
  33. Northern Shrike Lanius borealis
    # Count: 1
    Date:
    Observer: Brad Davis
    Location: Border Tule Wildlife Habitat (private - view from White Rd)
  34. Garganey Spatula querquedula
    # Count: 1
    Date:
    Observer: John Sterling
    Location: 7733–7751 White Rd, Arbuckle US-CA 38.96887, -121.92894
  35. Green-tailed Towhee Pipilo chlorurus
    # Count: 1
    Date:
    Observer: Erica Harris
    Location: Snow Mountain Wilderness (Colusa Co.)
  36. Curlew Sandpiper Calidris ferruginea
    # Count: 1
    Date:
    Observer: carla barbaro
    Location: 7649–7663 Grimes-Arbuckle Rd, Colusa US-CA 39.05688, -121.96012
  37. Ruff Calidris pugnax
    # Count: 1
    Date:
    Observer: Ethan Monk
    Location: Sycamore Cutoff
  38. Baikal Teal Sibirionetta formosa
    # Count: 1
    Date:
    Observer: Isaac Henderson
    Location: Delevan NWR
  39. Red Crossbill Loxia curvirostra
    # Count: 6
    Date:
    Observer: Michele Swartout
    Location: Upper Letts Lake
  40. Common Poorwill Phalaenoptilus nuttallii
    # Count: 1
    Date:
    Observer: Bob Toleno
    Location: Fouts Springs Rd (39.37153, -122.65214)
  41. Sabine's Gull Xema sabini
    # Count: 1
    Date:
    Observer: Stuart Angerer
    Location: Maxwell WTP
  42. Common Loon Gavia immer
    # Count: 1
    Date:
    Observer: Michele Swartout
    Location: East Park Reservoir
  43. Red-breasted Merganser Mergus serrator
    # Count: 1
    Date:
    Observer: Liam Huber
    Location: East Park Reservoir
  44. Surf Scoter Melanitta perspicillata
    # Count: 1
    Date:
    Observer: Matthew Forster
    Location: East Park Reservoir
  45. Trumpeter Swan Cygnus buccinator
    # Count: 2
    Date:
    Observer: Liam Huber
    Location: Poundstone Rd. South
  46. Evening Grosbeak Coccothraustes vespertinus
    # Count: 1
    Date:
    Observer: Brian Browne
    Location: Lower Letts Valley (includes Lily Pond & MV Campground)
  47. Barrow's Goldeneye Bucephala islandica
    # Count: 1
    Date:
    Observer: Brian Browne
    Location: East Park Reservoir
  48. Glaucous-winged Gull Larus glaucescens
    # Count: 1
    Date:
    Observer: Brian Browne
    Location: Tule Rd. (Colusa Co.)
  49. Iceland Gull Larus glaucoides
    # Count: 1
    Date:
    Observer: Brian Browne
    Location: Tule Rd. (Colusa Co.)
  50. Clark's Nutcracker Nucifraga columbiana
    # Count: 1
    Date:
    Observer: Cameron Tescher
    Location: Upper Letts Lake
  51. American Dipper Cinclus mexicanus
    # Count: 2
    Date:
    Observer: Cameron Tescher
    Location: Fouts Springs Valley (includes creeks & campgrounds)
  52. Hermit Warbler Setophaga occidentalis
    # Count: 1
    Date:
    Observer: Michael Rogner
    Location: Willow Bend (restricted access)
  53. Chestnut-backed Chickadee Poecile rufescens
    # Count: 2
    Date:
    Observer: Shannon Underhill
    Location: Snow Mountain Wilderness (Colusa Co.)
  54. Semipalmated Sandpiper Calidris pusilla
    # Count: 1
    Date:
    Observer: Lucas stephenson
    Location: Colusa NWR
  55. Eastern Kingbird Tyrannus tyrannus
    # Count: 1
    Date:
    Observer: Dack Burnett
    Location: Norman Rd
  56. Northern Saw-whet Owl Aegolius acadicus
    # Count: 1
    Date:
    Observer: Cameron Tescher
    Location: Forest Route 17N02
  57. Townsend's Solitaire Myadestes townsendi
    # Count: 2
    Date:
    Observer: Aidan Brubaker
    Location: Lower Letts Valley (includes Lily Pond & MV Campground)
  58. Mountain Chickadee Poecile gambeli
    # Count: 1
    Date:
    Observer: Zane Pickus
    Location: Lower Letts Valley (includes Lily Pond & MV Campground)
  59. Horned Grebe Podiceps auritus
    # Count: 2
    Date:
    Observer: Zane Pickus
    Location: East Park Reservoir
  60. Short-eared Owl Asio flammeus
    # Count: 1
    Date:
    Observer: Frank Fabbro
    Location: Colusa NWR--Abel Rd.
  61. Golden-crowned Kinglet Regulus satrapa
    # Count: 4
    Date:
    Observer: Anonymous eBirder
    Location: KING RANCH
  62. Pacific Wren Troglodytes pacificus
    # Count: 1
    Date:
    Observer: Andreas Steiner
    Location: Colusa NWR--Auto Tour Route
  63. Marbled Godwit Limosa fedoa
    # Count: 1
    Date:
    Observer: Kirsti Carr
    Location: Colusa NWR--Auto Tour Route
  64. Purple Martin Progne subis
    # Count: 1
    Date:
    Observer: Cameron Tescher
    Location: Colusa NWR
  65. Solitary Sandpiper Tringa solitaria
    # Count: 1
    Date:
    Observer: Cameron Tescher
    Location: Colusa NWR
  66. Vaux's Swift Chaetura vauxi
    # Count: 1
    Date:
    Observer: Dessi Sieburth
    Location: Maxwell WTP
  67. Bank Swallow Riparia riparia
    # Count: 4
    Date:
    Observer: Kornel Laskowski
    Location: Colusa NWR
  68. Yellow-billed Cuckoo Coccyzus americanus
    # Count: 1
    Date:
    Observer: Michael Rogner
    Location: Boggs Bend
  69. Western Screech-Owl Megascops kennicottii
    # Count: 2
    Date:
    Observer: Bruce Mast
    Location: Dixie Glade Campground
  70. White-headed Woodpecker Dryobates albolarvatus
    # Count: 1
    Date:
    Observer: Bruce Mast
    Location: Snow Mountain Wilderness (Colusa Co.)
  71. Olive-sided Flycatcher Contopus cooperi
    # Count: 2
    Date:
    Observer: Bruce Mast
    Location: Snow Mountain Wilderness (Colusa Co.)
  72. Dusky Flycatcher Empidonax oberholseri
    # Count: 1
    Date:
    Observer: Bruce Mast
    Location: Snow Mountain Wilderness (Colusa Co.)
  73. Cassin's Finch Haemorhous cassinii
    # Count: 5
    Date:
    Observer: Bruce Mast
    Location: Snow Mountain Wilderness (Colusa Co.)
  74. Baird's Sandpiper Calidris bairdii
    # Count: 1
    Date:
    Observer: Matthew Forster
    Location: I-5--Maxwell Rest Area
  75. Bonaparte's Gull Chroicocephalus philadelphia
    # Count: 1
    Date:
    Observer: Erica Harris
    Location: I-5--Maxwell Rest Area
  76. Short-billed Dowitcher Limnodromus griseus
    # Count: 2
    Date:
    Observer: Janet Kelly
    Location: I-5--Maxwell Rest Area
  77. Pectoral Sandpiper Calidris melanotos
    # Count: 1
    Date:
    Observer: Daniel Welsh
    Location: I-5--Maxwell Rest Area
  78. Grasshopper Sparrow Ammodramus savannarum
    # Count: 1
    Date:
    Observer: Sami LaRocca
    Location: Sand Creek Rd.
  79. Steller's Jay Cyanocitta stelleri
    # Count: 1
    Date:
    Observer: Amy Williamson
    Location: Colusa NWR--Auto Tour Route
  80. Western Grebe Aechmophorus occidentalis
    # Count: 10
    Date:
    Observer: Ken Schneider
    Location: East Park Reservoir
  81. Clark's Grebe Aechmophorus clarkii
    # Count: 10
    Date:
    Observer: Christina Drukala
    Location: Colusa NWR--Abel Rd.
  82. Burrowing Owl Athene cunicularia
    # Count: 1
    Date:
    Observer: Craig Sells
    Location: Poundstone Rd. South
  83. Canyon Wren Catherpes mexicanus
    # Count: 3
    Date:
    Observer: Eric Ongman
    Location: Maxwell Sites Rd.
  84. Mountain Bluebird Sialia currucoides
    # Count: 3
    Date:
    Observer: George Griffeth
    Location: Bear Valley Rd.--northern grassland
  85. Rough-legged Hawk Buteo lagopus
    # Count: 1
    Date:
    Observer: Ellie Insley
    Location: Colusa NWR
  86. Pileated Woodpecker Dryocopus pileatus
    # Count: 1
    Date:
    Observer: Tim Bray
    Location: Bear Valley Rd.--Northern Oak Savannah
  87. Greater Scaup Aythya marila
    # Count: 3
    Date:
    Observer: Mary-George Simonitch
    Location: Colusan-Sacramento River State Recreation Area
  88. Lapland Longspur Calcarius lapponicus
    # Count: 1
    Date:
    Observer: John Luther
    Location: Colusa NWR--Auto Tour Route
  89. Say's Phoebe Sayornis saya
    # Count: 1
    Date:
    Observer: Amanda Starbuck
    Location: Wilbur Hot Springs
  90. Eared Grebe Podiceps nigricollis
    # Count: 1
    Date:
    Observer: Mark Stephenson
    Location: Colusa NWR--Auto Tour Route
  91. Band-tailed Pigeon Patagioenas fasciata
    # Count: 3
    Date:
    Observer: Andy Stepniewski
    Location: Leesville Rd.
  92. Herring Gull Larus argentatus
    # Count: 2
    Date:
    Observer: Zane Pickus
    Location: Colusa NWR
  93. Tundra Swan Cygnus columbianus
    # Count: 13
    Date:
    Observer: Marcel Holyoak
    Location: CA-45, Arbuckle US-CA 38.96882, -121.86216
  94. Red-breasted Sapsucker Sphyrapicus ruber
    # Count: 1
    Date:
    Observer: Carol Miller
    Location: Colusa Levee Park
  95. Purple Finch Haemorhous purpureus
    # Count: 1
    Date:
    Observer: Zane Pickus
    Location: Sites Lodoga Rd at Grapevine Pass
  96. Lewis's Woodpecker Melanerpes lewis
    # Count: 4
    Date:
    Observer: Zane Pickus
    Location: East Park Reservoir
  97. Prairie Falcon Falco mexicanus
    # Count: 1
    Date:
    Observer: Cameron Tescher
    Location: East Park Reservoir
  98. Rock Wren Salpinctes obsoletus
    # Count: 1
    Date:
    Observer: Zane Pickus
    Location: East Park Reservoir
  99. Ferruginous Hawk Buteo regalis
    # Count: 1
    Date:
    Observer: Zane Pickus
    Location: Bear Valley Rd.--northern grassland
  100. Redhead Aythya americana
    # Count: 2
    Date:
    Observer: Zane Pickus
    Location: Maxwell WTP
  101. Lesser Scaup Aythya affinis
    # Count: 16
    Date:
    Observer: Zane Pickus
    Location: Maxwell WTP
  102. Common Goldeneye Bucephala clangula
    # Count: 20
    Date:
    Observer: Zane Pickus
    Location: Maxwell WTP
  103. Varied Thrush Ixoreus naevius
    # Count: 2
    Date:
    Observer: Dack Burnett
    Location: Colusa-Sacramento River SRA
  104. Vermilion Flycatcher Pyrocephalus rubinus
    # Count: 1
    Date:
    Observer: Nancy Gronert
    Location: Williams Cemetery, Williams US-CA 39.14220, -122.15121
  105. Eurasian Wigeon Mareca penelope
    # Count: 1
    Date:
    Observer: suga moriwaki
    Location: Colusa National Wildlife Refuge, Colusa US-CA 39.18834, -122.04388
  106. Red-breasted Nuthatch Sitta canadensis
    # Count: 2
    Date:
    Observer: Dawn Lemoine
    Location: Colusa-Sacramento River SRA
  107. Brown Creeper Certhia americana
    # Count: 1
    Date:
    Observer: Dawn Lemoine
    Location: Colusa-Sacramento River SRA
  108. Hermit Thrush Catharus guttatus
    # Count: 1
    Date:
    Observer: Dawn Lemoine
    Location: Colusa-Sacramento River SRA
  109. Sandhill Crane Antigone canadensis
    # Count: 3
    Date:
    Observer: Calen Randall
    Location: County Line Rd. (Colusa Co.)
  110. Pine Siskin Spinus pinus
    # Count: 2
    Date:
    Observer: Rachel Lawrence
    Location: Colusa NWR
  111. Vesper Sparrow Pooecetes gramineus
    # Count: 1
    Date:
    Observer: Chet Ogan
    Location: Leesville Rd.
  112. Canvasback Aythya valisineria
    # Count: 2
    Date:
    Observer: Michael Gruskin
    Location: Colusa NWR
  113. Merlin Falco columbarius
    # Count: X
    Date:
    Observer: J.B. Krewson
    Location: I-5--Maxwell Rest Area
  114. Fox Sparrow Passerella iliaca
    # Count: 4
    Date:
    Observer: Miss Jess
    Location: Colusa NWR--walking trail
  115. Sharp-shinned Hawk Accipiter striatus
    # Count: 1
    Date:
    Observer: Sean McAllister
    Location: Colusa National Wildlife Refuge, Colusa US-CA 39.19553, -122.05924
  116. Bufflehead Bucephala albeola
    # Count: 1
    Date:
    Observer: Ed Harper
    Location: Colusa NWR--Abel Rd.
  117. Lesser Yellowlegs Tringa flavipes
    # Count: 2
    Date:
    Observer: Ed Harper
    Location: Colusa NWR--Abel Rd.
  118. Dark-eyed Junco Junco hyemalis
    # Count: 1
    Date:
    Observer: Lucas Corneliussen
    Location: Colusa-Sacramento River SRA
  119. Black-throated Gray Warbler Setophaga nigrescens
    # Count: 3
    Date:
    Observer: Lucas Corneliussen
    Location: Colusa-Sacramento River SRA
  120. White-throated Sparrow Zonotrichia albicollis
    # Count: 1
    Date:
    Observer: John Luther
    Location: Colusa NWR--walking trail
  121. MacGillivray's Warbler Geothlypis tolmiei
    # Count: 1
    Date:
    Observer: John Luther
    Location: Colusa NWR--walking trail
  122. Blue-gray Gnatcatcher Polioptila caerulea
    # Count: 1
    Date:
    Observer: Ben DeDominic
    Location: Sand Creek Rd.
  123. Lawrence's Goldfinch Spinus lawrencei
    # Count: 1
    Date:
    Observer: Ben DeDominic
    Location: Sand Creek Rd.
  124. Ruby-crowned Kinglet Corthylio calendula
    # Count: 2
    Date:
    Observer: Krzysztof Kurylowicz
    Location: Colusa NWR--walking trail
  125. Hairy Woodpecker Dryobates villosus
    # Count: 1
    Date:
    Observer: Theresa Thomas
    Location: Wilbur Hot Springs
  126. Common Merganser Mergus merganser
    # Count: 4
    Date:
    Observer: Ed Pandolfino
    Location: Bear Valley Rd. (Colusa Co.)
  127. Northern Pygmy-Owl Glaucidium gnoma
    # Count: 1
    Date:
    Observer: Ed Pandolfino
    Location: Bear Valley Rd. (Colusa Co.)
  128. Rufous-crowned Sparrow Aimophila ruficeps
    # Count: 1
    Date:
    Observer: Ed Pandolfino
    Location: Brim Rd. (Colusa Co.)
  129. Hooded Oriole Icterus cucullatus
    # Count: 1
    Date:
    Observer: John Harris
    Location: Balfour Park
  130. Ring-necked Duck Aythya collaris
    # Count: 1
    Date:
    Observer: Ron Andersen
    Location: Colusa NWR--Auto Tour Route
  131. Virginia Rail Rallus limicola
    # Count: 1
    Date:
    Observer: Ron Andersen
    Location: Colusa NWR--Auto Tour Route
  132. Sora Porzana carolina
    # Count: 1
    Date:
    Observer: Ron Andersen
    Location: Colusa NWR--Auto Tour Route
  133. Chipping Sparrow Spizella passerina
    # Count: 1
    Date:
    Observer: Ron Andersen
    Location: Colusa NWR--Auto Tour Route
  134. Ross's Goose Anser rossii
    # Count: 1
    Date:
    Observer: Debra Johnson
    Location: Colusa NWR--Auto Tour Route
  135. Lincoln's Sparrow Melospiza lincolnii
    # Count: 1
    Date:
    Observer: Peter Colasanti
    Location: Delevan NWR
  136. Dunlin Calidris alpina
    # Count: 6
    Date:
    Observer: John Luther
    Location: Colusa NWR--Abel Rd.
  137. American Pipit Anthus rubescens
    # Count: 1
    Date:
    Observer: John Luther
    Location: Colusa NWR--Abel Rd.
  138. American Wigeon Mareca americana
    # Count: 6
    Date:
    Observer: John Luther
    Location: Colusa NWR--Auto Tour Route
  139. Ruddy Duck Oxyura jamaicensis
    # Count: 2
    Date:
    Observer: John Luther
    Location: Colusa NWR--Auto Tour Route
  140. Calliope Hummingbird Selasphorus calliope
    # Count: 2
    Date:
    Observer: John Luther
    Location: Colusa NWR--Auto Tour Route
  141. Allen's Hummingbird Selasphorus sasin
    # Count: 1
    Date:
    Observer: John Luther
    Location: Colusa NWR--Auto Tour Route
  142. Black-bellied Plover Pluvialis squatarola
    # Count: 3
    Date:
    Observer: John Luther
    Location: Colusa NWR--Auto Tour Route
  143. Hutton's Vireo Vireo huttoni
    # Count: 4
    Date:
    Observer: Ed Pandolfino
    Location: Sand Creek Rd.
  144. Phainopepla Phainopepla nitens
    # Count: 1
    Date:
    Observer: Ed Pandolfino
    Location: Sand Creek Rd.
  145. Peregrine Falcon Falco peregrinus
    # Count: 1
    Date:
    Observer: Natalie Kluck
    Location: Delevan National Wildlife Refuge, Maxwell US-CA 39.31734, -122.09785
  146. White-crowned Sparrow Zonotrichia leucophrys
    # Count: 1
    Date:
    Observer: Craig Dodson
    Location: Colusa NWR--Auto Tour Route
  147. Spotted Sandpiper Actitis macularius
    # Count: 1
    Date:
    Observer: Alexander McDonell
    Location: Colusa NWR--walking trail
  148. White-tailed Kite Elanus leucurus
    # Count: 1
    Date:
    Observer: Alexander McDonell
    Location: Colusa NWR--walking trail
  149. Savannah Sparrow Passerculus sandwichensis
    # Count: 5
    Date:
    Observer: Alexander McDonell
    Location: Colusa NWR--walking trail
  150. Ring-billed Gull Larus delawarensis
    # Count: 4
    Date:
    Observer: Barry Harris
    Location: Colusa NWR--Auto Tour Route
  151. Northern Flicker Colaptes auratus
    # Count: 1
    Date:
    Observer: Shelly Kirn
    Location: Sacramento River -Colusa Boat Ramp
  152. Rufous Hummingbird Selasphorus rufus
    # Count: 1
    Date:
    Observer: Steve Laymon
    Location: Sycamore Slough Rd.
  153. Red-shouldered Hawk Buteo lineatus
    # Count: 1
    Date:
    Observer: Steve Laymon
    Location: Sycamore Slough Rd.
  154. Long-billed Curlew Numenius americanus
    # Count: 7
    Date:
    Observer: Bob Ellis
    Location: Colusa National Wildlife Refuge, Williams US-CA 39.18816, -122.04184
  155. Snow Goose Anser caerulescens
    # Count: 50
    Date:
    Observer: Henry Burton
    Location: Colusa NWR--Auto Tour Route
  156. Greater White-fronted Goose Anser albifrons
    # Count: 13
    Date:
    Observer: Henry Burton
    Location: Colusa NWR--Auto Tour Route
  157. Willet Tringa semipalmata
    # Count: 3
    Date:
    Observer: Henry Burton
    Location: Colusa NWR--Auto Tour Route
  158. Yellow-rumped Warbler Setophaga coronata
    # Count: 2
    Date:
    Observer: Henry Burton
    Location: Colusa NWR--Auto Tour Route
  159. Mountain Quail Oreortyx pictus
    # Count: 1
    Date:
    Observer: Ian Souza-Cole
    Location: Walker Ridge Rd, Williams US-CA 39.05903, -122.48929
  160. Western Flycatcher Empidonax difficilis
    # Count: 2
    Date:
    Observer: Ian Souza-Cole
    Location: Walker Ridge Rd, Williams US-CA 39.05903, -122.48929
  161. Cassin's Vireo Vireo cassinii
    # Count: 2
    Date:
    Observer: Ian Souza-Cole
    Location: Walker Ridge Rd, Williams US-CA 39.05903, -122.48929
  162. California Thrasher Toxostoma redivivum
    # Count: 7
    Date:
    Observer: Ian Souza-Cole
    Location: Walker Ridge Rd, Williams US-CA 39.05903, -122.48929
  163. Golden-crowned Sparrow Zonotrichia atricapilla
    # Count: 2
    Date:
    Observer: Ian Souza-Cole
    Location: Walker Ridge Rd, Williams US-CA 39.05903, -122.48929
  164. Bell's Sparrow Artemisiospiza belli
    # Count: 5
    Date:
    Observer: Ian Souza-Cole
    Location: Walker Ridge Rd, Williams US-CA 39.05903, -122.48929
  165. Nashville Warbler Leiothlypis ruficapilla
    # Count: 1
    Date:
    Observer: Ian Souza-Cole
    Location: Walker Ridge Rd, Williams US-CA 39.05903, -122.48929
  166. Townsend's Warbler Setophaga townsendi
    # Count: 3
    Date:
    Observer: Ian Souza-Cole
    Location: Walker Ridge Rd, Williams US-CA 39.05903, -122.48929
  167. Lazuli Bunting Passerina amoena
    # Count: 15
    Date:
    Observer: Ian Souza-Cole
    Location: Walker Ridge Rd, Williams US-CA 39.05903, -122.48929
  168. Green Heron Butorides virescens
    # Count: 1
    Date:
    Observer: Roxy Wacyk
    Location: Wilbur
  169. Semipalmated Plover Charadrius semipalmatus
    # Count: 5
    Date:
    Observer: Ben Meredyk
    Location: Colusa NWR--Auto Tour Route
  170. Long-billed Dowitcher Limnodromus scolopaceus
    # Count: 8
    Date:
    Observer: Ben Meredyk
    Location: Colusa NWR--Auto Tour Route
  171. Wilson's Snipe Gallinago delicata
    # Count: 1
    Date:
    Observer: Ben Meredyk
    Location: Colusa NWR--Auto Tour Route
  172. Wilson's Phalarope Phalaropus tricolor
    # Count: 2
    Date:
    Observer: Ben Meredyk
    Location: Colusa NWR--Auto Tour Route
  173. Least Sandpiper Calidris minutilla
    # Count: 4
    Date:
    Observer: Ben Meredyk
    Location: Colusa NWR--Auto Tour Route
  174. Western Sandpiper Calidris mauri
    # Count: 5
    Date:
    Observer: Ben Meredyk
    Location: Colusa NWR--Auto Tour Route
  175. Black Tern Chlidonias niger
    # Count: 2
    Date:
    Observer: Ben Meredyk
    Location: Colusa NWR--Auto Tour Route
  176. Osprey Pandion haliaetus
    # Count: 1
    Date:
    Observer: Karen Skelton
    Location: Colusa NWR
  177. Great Horned Owl Bubo virginianus
    # Count: 1
    Date:
    Observer: Karen Skelton
    Location: Colusa NWR
  178. American Avocet Recurvirostra americana
    # Count: 2
    Date:
    Observer: Mark Stephenson
    Location: I-5--Maxwell Rest Area
  179. Red-necked Phalarope Phalaropus lobatus
    # Count: 29
    Date:
    Observer: Mark Stephenson
    Location: I-5--Maxwell Rest Area
  180. Golden Eagle Aquila chrysaetos
    # Count: 1
    Date:
    Observer: Melissa Rider
    Location: Colusa-Sacramento River State Recreation Area, Colusa US-CA (39.2192,-122.0153)
  181. Orange-crowned Warbler Leiothlypis celata
    # Count: 2
    Date:
    Observer: Melissa Rider
    Location: Colusa-Sacramento River State Recreation Area, Colusa US-CA (39.2192,-122.0153)
  182. Cooper's Hawk Accipiter cooperii
    # Count: 1
    Date:
    Observer: Liz West
    Location: Colusa NWR--walking trail
  183. Hammond's Flycatcher Empidonax hammondii
    # Count: 1
    Date:
    Observer: Liz West
    Location: Colusa NWR--walking trail
  184. Warbling Vireo Vireo gilvus
    # Count: 2
    Date:
    Observer: Liz West
    Location: Colusa NWR--walking trail
  185. Green-winged Teal Anas crecca
    # Count: 2
    Date:
    Observer: Aidan Brubaker
    Location: Colusa NWR--Auto Tour Route
  186. Anna's Hummingbird Calypte anna
    # Count: 2
    Date:
    Observer: Aidan Brubaker
    Location: Colusa NWR--Auto Tour Route
  187. White-breasted Nuthatch Sitta carolinensis
    # Count: 1
    Date:
    Observer: Ben DeDominic
    Location: Sand Creek Rd, Arbuckle US-CA 39.00605, -122.19328
  188. Least Bittern Ixobrychus exilis
    # Count: 1
    Date:
    Observer: Melissa Rider
    Location: Colusa National Wildlife Refuge, Williams US-CA 39.18817, -122.04132
  189. American White Pelican Pelecanus erythrorhynchos
    # Count: 30
    Date:
    Observer: L. Burkett
    Location: Colusa NWR
  190. Yellow-breasted Chat Icteria virens
    # Count: 1
    Date:
    Observer: L. Burkett
    Location: Colusa NWR
  191. Barn Owl Tyto alba
    # Count: 1
    Date:
    Observer: Melissa Rider
    Location: 411 Ninth St, Colusa US-CA 39.21301, -122.01404
  192. Whimbrel Numenius phaeopus
    # Count: 1
    Date:
    Observer: Karen McClure
    Location: Colusa NWR--Auto Tour Route
  193. Yellow Warbler Setophaga petechia
    # Count: 2
    Date:
    Observer: Karen McClure
    Location: Colusa NWR--Auto Tour Route
  194. Blue-winged Teal Spatula discors
    # Count: 2
    Date:
    Observer: Jodi Pinder
    Location: College City, California, US (39.029, -121.998)
  195. White-faced Ibis Plegadis chihi
    # Count: 16
    Date:
    Observer: Jodi Pinder
    Location: College City, California, US (39.029, -121.998)
  196. Yellow-headed Blackbird Xanthocephalus xanthocephalus
    # Count: 16
    Date:
    Observer: Jodi Pinder
    Location: College City, California, US (39.029, -121.998)
  197. Northern Shoveler Spatula clypeata
    # Count: 2
    Date:
    Observer: Tammy Thompson
    Location: Colusa NWR--Auto Tour Route
  198. Cackling Goose Branta hutchinsii
    # Count: 1
    Date:
    Observer: Jodi Pinder
    Location: College City, California, US (38.989, -121.97)
  199. Common Gallinule Gallinula galeata
    # Count: 1
    Date:
    Observer: Jodi Pinder
    Location: Unnamed Road, Colusa, California, US (39.272, -121.951)
  200. American Bittern Botaurus lentiginosus
    # Count: 1
    Date:
    Observer: Jodi Pinder
    Location: Unnamed Road, Colusa, California, US (39.272, -121.951)
  201. Caspian Tern Hydroprogne caspia
    # Count: 1
    Date:
    Observer: Denise Wight
    Location: Colusa NWR--walking trail
  202. Downy Woodpecker Dryobates pubescens
    # Count: 2
    Date:
    Observer: Denise Wight
    Location: Colusa NWR--walking trail
  203. Willow Flycatcher Empidonax traillii
    # Count: 1
    Date:
    Observer: Denise Wight
    Location: Colusa NWR--walking trail
  204. Gadwall Mareca strepera
    # Count: 2
    Date:
    Observer: Denise Wight
    Location: Colusa NWR--Auto Tour Route
  205. Northern Harrier Circus hudsonius
    # Count: 1
    Date:
    Observer: Denise Wight
    Location: Colusa NWR--Auto Tour Route
  206. Hooded Merganser Lophodytes cucullatus
    # Count: 1
    Date:
    Observer: Jodi Pinder
    Location: Colusa, California, US (39.209, -121.938)
  207. Pied-billed Grebe Podilymbus podiceps
    # Count: 1
    Date:
    Observer: Jodi Pinder
    Location: Colusa, California, US (39.209, -121.938)
  208. Belted Kingfisher Megaceryle alcyon
    # Count: 1
    Date:
    Observer: Jodi Pinder
    Location: Colusa, California, US (39.209, -121.938)
  209. Western Wood-Pewee Contopus sordidulus
    # Count: 2
    Date:
    Observer: Jodi Pinder
    Location: Colusa, California, US (39.209, -121.938)
  210. Wilson's Warbler Cardellina pusilla
    # Count: 1
    Date:
    Observer: Jodi Pinder
    Location: Colusa, California, US (39.209, -121.938)
  211. Violet-green Swallow Tachycineta thalassina
    # Count: 2
    Date:
    Observer: Greg Meyer
    Location: Colusa-Sacramento River SRA
  212. Swainson's Thrush Catharus ustulatus
    # Count: 1
    Date:
    Observer: Greg Meyer
    Location: Colusa-Sacramento River SRA
  213. Cedar Waxwing Bombycilla cedrorum
    # Count: 1
    Date:
    Observer: Greg Meyer
    Location: Colusa-Sacramento River SRA
  214. Spotted Towhee Pipilo maculatus
    # Count: 1
    Date:
    Observer: Greg Meyer
    Location: Colusa-Sacramento River SRA
  215. Western Tanager Piranga ludoviciana
    # Count: 1
    Date:
    Observer: Greg Meyer
    Location: Colusa-Sacramento River SRA
  216. Black-headed Grosbeak Pheucticus melanocephalus
    # Count: 2
    Date:
    Observer: Eileen Murphy
    Location: Colusa-Sacramento River State Recreation Area, Colusa US-CA 39.21790, -122.01495
  217. Blue Grosbeak Passerina caerulea
    # Count: 1
    Date:
    Observer: Eileen Murphy
    Location: Colusa-Sacramento River State Recreation Area, Colusa US-CA 39.21790, -122.01495
  218. Cinnamon Teal Spatula cyanoptera
    # Count: 1
    Date:
    Observer: Eileen Murphy
    Location: Colusa NWR
  219. Black Swift Cypseloides niger
    # Count: 2
    Date:
    Observer: Dominik Mosur
    Location: I-5--Maxwell Rest Area
  220. Bald Eagle Haliaeetus leucocephalus
    # Count: X
    Date:
    Observer: Alex Heeren
    Location: Colusa NWR--Auto Tour Route
  221. Bushtit Psaltriparus minimus
    # Count: X
    Date:
    Observer: Alex Heeren
    Location: Colusa NWR--Auto Tour Route
  222. Bewick's Wren Thryomanes bewickii
    # Count: X
    Date:
    Observer: Alex Heeren
    Location: Colusa NWR--Auto Tour Route
  223. Wood Duck Aix sponsa
    # Count: 1
    Date:
    Observer: Robert Aramayo
    Location: Colusa NWR--Auto Tour Route
  224. Northern Pintail Anas acuta
    # Count: 6
    Date:
    Observer: Robert Aramayo
    Location: Colusa NWR--Auto Tour Route
  225. Wild Turkey Meleagris gallopavo
    # Count: 5
    Date:
    Observer: Robert Aramayo
    Location: Colusa NWR--Auto Tour Route
  226. Double-crested Cormorant Nannopterum auritum
    # Count: 13
    Date:
    Observer: Robert Aramayo
    Location: Colusa NWR--Auto Tour Route
  227. Tree Swallow Tachycineta bicolor
    # Count: 3
    Date:
    Observer: Robert Aramayo
    Location: Colusa NWR--Auto Tour Route
  228. Ring-necked Pheasant Phasianus colchicus
    # Count: 1
    Date:
    Observer: Dominik Mosur
    Location: Danley Road
  229. Western Cattle Egret Bubulcus ibis
    # Count: 4
    Date:
    Observer: Dominik Mosur
    Location: Danley Road
  230. Loggerhead Shrike Lanius ludovicianus
    # Count: 3
    Date:
    Observer: Dominik Mosur
    Location: Danley Road
  231. Black-chinned Hummingbird Archilochus alexandri
    # Count: 1
    Date:
    Observer: Dominik Mosur
    Location: Freshwater Rd, Williams US-CA 39.17477, -122.22044
  232. Greater Roadrunner Geococcyx californianus
    # Count: 4
    Date:
    Observer: Ben DeDominic
    Location: Sand Creek Rd.
  233. Nuttall's Woodpecker Dryobates nuttallii
    # Count: 2
    Date:
    Observer: Ben DeDominic
    Location: Sand Creek Rd.
  234. Yellow-billed Magpie Pica nuttalli
    # Count: 8
    Date:
    Observer: Ben DeDominic
    Location: Sand Creek Rd.
  235. Northern Rough-winged Swallow Stelgidopteryx serripennis
    # Count: 2
    Date:
    Observer: Ben DeDominic
    Location: Sand Creek Rd.
  236. Lark Sparrow Chondestes grammacus
    # Count: 2
    Date:
    Observer: Ben DeDominic
    Location: Sand Creek Rd.
  237. California Towhee Melozone crissalis
    # Count: 2
    Date:
    Observer: Ben DeDominic
    Location: Sand Creek Rd.
  238. Lesser Nighthawk Chordeiles acutipennis
    # Count: 1
    Date:
    Observer: Michael Nicodemus
    Location: West Side Highway, Williams, California, US (39.18, -122.161)
  239. California Quail Callipepla californica
    # Count: 5
    Date:
    Observer: Bradley Hacker 🦜
    Location: Lodoga Stonyford Rd.
  240. Acorn Woodpecker Melanerpes formicivorus
    # Count: 2
    Date:
    Observer: Bradley Hacker 🦜
    Location: Lodoga Stonyford Rd.
  241. Ash-throated Flycatcher Myiarchus cinerascens
    # Count: 1
    Date:
    Observer: Bradley Hacker 🦜
    Location: Lodoga Stonyford Rd.
  242. California Scrub-Jay Aphelocoma californica
    # Count: 2
    Date:
    Observer: Bradley Hacker 🦜
    Location: Lodoga Stonyford Rd.
  243. Oak Titmouse Baeolophus inornatus
    # Count: 1
    Date:
    Observer: Bradley Hacker 🦜
    Location: Lodoga Stonyford Rd.
  244. Horned Lark Eremophila alpestris
    # Count: 2
    Date:
    Observer: Bradley Hacker 🦜
    Location: Lodoga Stonyford Rd.
  245. Wrentit Chamaea fasciata
    # Count: 2
    Date:
    Observer: Bradley Hacker 🦜
    Location: Lodoga Stonyford Rd.
  246. House Wren Troglodytes aedon
    # Count: 1
    Date:
    Observer: Bradley Hacker 🦜
    Location: Lodoga Stonyford Rd.
  247. Western Bluebird Sialia mexicana
    # Count: 2
    Date:
    Observer: Bradley Hacker 🦜
    Location: Lodoga Stonyford Rd.
  248. American Robin Turdus migratorius
    # Count: 2
    Date:
    Observer: Bradley Hacker 🦜
    Location: Lodoga Stonyford Rd.
  249. Lesser Goldfinch Spinus psaltria
    # Count: 2
    Date:
    Observer: Bradley Hacker 🦜
    Location: Lodoga Stonyford Rd.
  250. Bullock's Oriole Icterus bullockii
    # Count: 1
    Date:
    Observer: Bradley Hacker 🦜
    Location: Lodoga Stonyford Rd.
  251. American Crow Corvus brachyrhynchos
    # Count: 1
    Date:
    Observer: Jennifer Reiersen
    Location: 901 Webster Street, Colusa, California, US (39.211, -122.015)
  252. Canada Goose Branta canadensis
    # Count: 5
    Date:
    Observer: Colby Baker
    Location: Lone Star Rd.
  253. Mallard Anas platyrhynchos
    # Count: 3
    Date:
    Observer: Colby Baker
    Location: Lone Star Rd.
  254. Rock Pigeon Columba livia
    # Count: 12
    Date:
    Observer: Colby Baker
    Location: Lone Star Rd.
  255. Eurasian Collared-Dove Streptopelia decaocto
    # Count: 5
    Date:
    Observer: Colby Baker
    Location: Lone Star Rd.
  256. Mourning Dove Zenaida macroura
    # Count: 4
    Date:
    Observer: Colby Baker
    Location: Lone Star Rd.
  257. White-throated Swift Aeronautes saxatalis
    # Count: 1
    Date:
    Observer: Colby Baker
    Location: Lone Star Rd.
  258. American Coot Fulica americana
    # Count: 2
    Date:
    Observer: Colby Baker
    Location: Lone Star Rd.
  259. Black-necked Stilt Himantopus mexicanus
    # Count: 3
    Date:
    Observer: Colby Baker
    Location: Lone Star Rd.
  260. Killdeer Charadrius vociferus
    # Count: 7
    Date:
    Observer: Colby Baker
    Location: Lone Star Rd.
  261. Greater Yellowlegs Tringa melanoleuca
    # Count: 1
    Date:
    Observer: Colby Baker
    Location: Lone Star Rd.
  262. California Gull Larus californicus
    # Count: 5
    Date:
    Observer: Colby Baker
    Location: Lone Star Rd.
  263. Forster's Tern Sterna forsteri
    # Count: 1
    Date:
    Observer: Colby Baker
    Location: Lone Star Rd.
  264. Snowy Egret Egretta thula
    # Count: 2
    Date:
    Observer: Colby Baker
    Location: Lone Star Rd.
  265. Great Egret Ardea alba
    # Count: 3
    Date:
    Observer: Colby Baker
    Location: Lone Star Rd.
  266. Great Blue Heron Ardea herodias
    # Count: 1
    Date:
    Observer: Colby Baker
    Location: Lone Star Rd.
  267. Turkey Vulture Cathartes aura
    # Count: 3
    Date:
    Observer: Colby Baker
    Location: Lone Star Rd.
  268. Swainson's Hawk Buteo swainsoni
    # Count: 3
    Date:
    Observer: Colby Baker
    Location: Lone Star Rd.
  269. Red-tailed Hawk Buteo jamaicensis
    # Count: 2
    Date:
    Observer: Colby Baker
    Location: Lone Star Rd.
  270. American Kestrel Falco sparverius
    # Count: 1
    Date:
    Observer: Colby Baker
    Location: Lone Star Rd.
  271. Black Phoebe Sayornis nigricans
    # Count: 1
    Date:
    Observer: Colby Baker
    Location: Lone Star Rd.
  272. Western Kingbird Tyrannus verticalis
    # Count: 2
    Date:
    Observer: Colby Baker
    Location: Lone Star Rd.
  273. Common Raven Corvus corax
    # Count: 1
    Date:
    Observer: Colby Baker
    Location: Lone Star Rd.
  274. Barn Swallow Hirundo rustica
    # Count: 3
    Date:
    Observer: Colby Baker
    Location: Lone Star Rd.
  275. Cliff Swallow Petrochelidon pyrrhonota
    # Count: 16
    Date:
    Observer: Colby Baker
    Location: Lone Star Rd.
  276. Marsh Wren Cistothorus palustris
    # Count: 5
    Date:
    Observer: Colby Baker
    Location: Lone Star Rd.
  277. European Starling Sturnus vulgaris
    # Count: 4
    Date:
    Observer: Colby Baker
    Location: Lone Star Rd.
  278. Northern Mockingbird Mimus polyglottos
    # Count: 1
    Date:
    Observer: Colby Baker
    Location: Lone Star Rd.
  279. House Sparrow Passer domesticus
    # Count: 3
    Date:
    Observer: Colby Baker
    Location: Lone Star Rd.
  280. House Finch Haemorhous mexicanus
    # Count: 4
    Date:
    Observer: Colby Baker
    Location: Lone Star Rd.
  281. American Goldfinch Spinus tristis
    # Count: 11
    Date:
    Observer: Colby Baker
    Location: Lone Star Rd.
  282. Song Sparrow Melospiza melodia
    # Count: 1
    Date:
    Observer: Colby Baker
    Location: Lone Star Rd.
  283. Western Meadowlark Sturnella neglecta
    # Count: 1
    Date:
    Observer: Colby Baker
    Location: Lone Star Rd.
  284. Red-winged Blackbird Agelaius phoeniceus
    # Count: 17
    Date:
    Observer: Colby Baker
    Location: Lone Star Rd.
  285. Tricolored Blackbird Agelaius tricolor
    # Count: 3
    Date:
    Observer: Colby Baker
    Location: Lone Star Rd.
  286. Brown-headed Cowbird Molothrus ater
    # Count: 2
    Date:
    Observer: Colby Baker
    Location: Lone Star Rd.
  287. Brewer's Blackbird Euphagus cyanocephalus
    # Count: 4
    Date:
    Observer: Colby Baker
    Location: Lone Star Rd.
  288. Great-tailed Grackle Quiscalus mexicanus
    # Count: 2
    Date:
    Observer: Colby Baker
    Location: Lone Star Rd.
  289. Common Yellowthroat Geothlypis trichas
    # Count: 1
    Date:
    Observer: Colby Baker
    Location: Lone Star Rd.
  290. Black-crowned Night Heron Nycticorax nycticorax
    # Count: 1
    Date:
    Observer: Gretchen Framel
    Location: I-5 S, Maxwell US-CA 39.26621, -122.18254
  291. Spotted Owl Strix occidentalis
    # Count: 1
  292. Long-eared Owl Asio otus
    # Count: 1
  293. Black Rail Laterallus jamaicensis
    # Count: 1

Exotic: Provisional (1)

  1. Mute Swan Cygnus olor
    # Count: 1
    Date:
    Observer: Linda Angerer
    Location: Colusa NWR--Abel Rd.

Exotic: Escapee (3)

  1. Barnacle Goose Branta leucopsis
    # Count: 1
    Date:
    Observer: Matt Goldowitz
    Location: Near Delavan N.W.R.
  2. Muscovy Duck Cairina moschata
    # Count: 1
    Date:
    Observer: Maggie Baumann
    Location: Colusa NWR
  3. Indian Peafowl Pavo cristatus
    # Count: 1
    Date:
    Observer: Seth Greene
    Location: Cam’s Ranch (Private)

Hybrids (15)

  1. Greater White-fronted x Cackling Goose (hybrid) Anser albifrons x Branta hutchinsii
    # Count: 1
    Date:
    Observer: Mike Hall
    Location: Colusa NWR
  2. Gadwall x Mallard (hybrid) Mareca strepera x Anas platyrhynchos
    # Count: 1
    Date:
    Observer: Frank Hall
    Location: Colusa NWR--Auto Tour Route
  3. Emperor x Greater White-fronted Goose (hybrid) Anser canagicus x albifrons
    # Count: 1
    Date:
    Observer: Mike Peters
    Location: Colusa NWR--Auto Tour Route
  4. Gadwall x Northern Pintail (hybrid) Mareca strepera x Anas acuta
    # Count: 1
    Date:
    Observer: Donna Pomeroy
    Location: Colusa NWR
  5. Domestic goose sp. x Canada Goose (hybrid) Anser sp. (Domestic type) x Branta canadensis
    # Count: 1
    Date:
    Observer: Ken Schneider
    Location: East Park Reservoir
  6. Snow x Greater White-fronted Goose (hybrid) Anser caerulescens x albifrons
    # Count: 1
    Date:
    Observer: Ronan Nicholson
    Location: Colusa NWR
  7. Western x Glaucous-winged Gull (hybrid) Larus occidentalis x glaucescens
    # Count: 2
    Date:
    Observer: Liam Huber
    Location: Tule Rd. (Colusa Co.)
  8. Herring x Glaucous-winged Gull (hybrid) Larus argentatus x glaucescens
    # Count: 2
    Date:
    Observer: Emmett Iverson
    Location: Tule Rd. (Colusa Co.)
  9. Greater White-fronted x Canada Goose (hybrid) Anser albifrons x Branta canadensis
    # Count: 1
    Date:
    Observer: Liam Huber
    Location: East Park Reservoir
  10. American Wigeon x Mallard (hybrid) Mareca americana x Anas platyrhynchos
    # Count: 1
    Date:
    Observer: David Leal
    Location: Colusa NWR--Auto Tour Route
  11. Graylag x Swan Goose (hybrid) Anser anser x cygnoides
    # Count: 1
    Date:
    Observer: Liam Huber
    Location: East Park Reservoir
  12. Graylag x Canada Goose (hybrid) Anser anser x Branta canadensis
    # Count: 1
    Date:
    Observer: Liam Huber
    Location: East Park Reservoir
  13. Glossy x White-faced Ibis (hybrid) Plegadis falcinellus x chihi
    # Count: 1
    Date:
    Observer: Noah Arthur
    Location: Colusa NWR
  14. Blue-winged x Cinnamon Teal (hybrid) Spatula discors x cyanoptera
    # Count: 1
    Date:
    Observer: Jeffery Sole
    Location: Colusa NWR--Auto Tour Route
  15. Eurasian x American Wigeon (hybrid) Mareca penelope x americana
    # Count: 1
    Date:
    Observer: suga moriwaki
    Location: Colusa National Wildlife Refuge, Colusa US-CA 39.18834, -122.04388

Additional Taxa (61)

  1. Loggerhead/Northern Shrike Lanius ludovicianus/borealis
    # Count: 1
    Date:
    Observer: Todd Morris
    Location: Colusa NWR
  2. Cassin's/Western Kingbird Tyrannus vociferans/verticalis
    # Count: 2
    Date:
    Observer: Bob Toleno
    Location: Sand Creek Rd.
  3. shorebird sp. Charadriiformes sp.
    # Count: 30
    Date:
    Observer: Sean Fitzgerald
    Location: Colusa NWR--Auto Tour Route
  4. Downy/Hairy Woodpecker Dryobates pubescens/villosus
    # Count: 1
    Date:
    Observer: Ken Schneider
    Location: Colusa-Sacramento River SRA
  5. Tree/Violet-green Swallow Tachycineta bicolor/thalassina
    # Count: 1
    Date:
    Observer: Ken Schneider
    Location: Cache Creek Natural Area--High Bridge Trailhead
  6. new world warbler sp. Parulidae sp.
    # Count: 2
    Date:
    Observer: logan kahle
    Location: Fouts Springs Trail N of River
  7. Black-throated Gray/Hermit Warbler Setophaga nigrescens/occidentalis
    # Count: 1
    Date:
    Observer: Ken Schneider
    Location: Forest Road 17N02 2.1 miles north of Letts Lake
  8. Catharus sp. Catharus sp.
    # Count: 1
    Date:
    Observer: Ken Schneider
    Location: Colusa-Sacramento River SRA
  9. new world flycatcher sp. Tyrannidae sp.
    # Count: 1
    Date:
    Observer: Daniel Erickson
    Location: Colusa NWR
  10. bluebird sp. Sialia sp.
    # Count: 3
    Date:
    Observer: Ken Schneider
    Location: Bear Valley Rd.--northern grassland
  11. Eurasian/American Wigeon Mareca penelope/americana
    # Count: X
    Date:
    Observer: kent johnson
    Location: Colusa NWR--Auto Tour Route
  12. Common/Barrow's Goldeneye Bucephala clangula/islandica
    # Count: 1
    Date:
    Observer: Joan Lamphier
    Location: Colusa NWR
  13. Western/Semipalmated Sandpiper Calidris mauri/pusilla
    # Count: 1
    Date:
    Observer: Ethan Monk
    Location: Maxwell WTP
  14. owl sp. Strigiformes sp.
    # Count: 1
    Date:
    Observer: logan kahle
    Location: I-5 S, Williams US-CA 39.21379, -122.18109
  15. finch sp. Fringillidae sp.
    # Count: 6
    Date:
    Observer: James (Jim) Holmes
    Location: Black Oak Campground
  16. large falcon sp. Falco sp. (large falcon sp.)
    # Count: 1
    Date:
    Observer: Robin Kulakow
    Location: Bear Valley Rd.--northern grassland
  17. Horned/Eared Grebe Podiceps auritus/nigricollis
    # Count: 2
    Date:
    Observer: Shelly Kirn
    Location: Colusa-Sacramento River SRA
  18. Selasphorus sp. Selasphorus sp.
    # Count: 1
    Date:
    Observer: Ken Schneider
    Location: Valley Vista Park
  19. Glossy/White-faced Ibis Plegadis falcinellus/chihi
    # Count: 1
    Date:
    Observer: Liam Huber
    Location: East Park Reservoir
  20. sapsucker sp. Sphyrapicus sp.
    # Count: 1
    Date:
    Observer: Nancy Kapellas
    Location: 5668 Sand Creek Rd, Arbuckle US-CA (39.0179,-122.1552)
  21. crow/raven sp. Corvus sp.
    # Count: 5
    Date:
    Observer: Mrinmoy Nag
    Location: Colusa Nwr
  22. Trumpeter/Tundra Swan Cygnus buccinator/columbianus
    # Count: 1
    Date:
    Observer: Emmett Iverson
    Location: 959–965 CA-45, Knights Landing US-CA 38.99715, -121.86696
  23. plover sp. Charadriidae sp.
    # Count: 1
    Date:
    Observer: Evan Custer
    Location: Colusa NWR
  24. Zonotrichia sp. Zonotrichia sp.
    # Count: 90
    Date:
    Observer: Liam Huber
    Location: Stonyford
  25. Domestic goose sp. (Domestic type) Anser sp. (Domestic type)
    # Count: 2
    Date:
    Observer: Louisa Haumeder
    Location: Colusa NWR--Auto Tour Route
  26. Cackling/Canada Goose Branta hutchinsii/canadensis
    # Count: 50
    Date:
    Observer: Mike Peters
    Location: private residence
  27. Tringa sp. Tringa sp.
    # Count: 1
    Date:
    Observer: James (Jim) Holmes
    Location: Colusa NWR
  28. phalarope sp. Phalaropus sp.
    # Count: 30
    Date:
    Observer: James (Jim) Holmes
    Location: Maxwell WTP
  29. nighthawk sp. Chordeiles sp.
    # Count: 1
    Date:
    Observer: Lucas Corneliussen
    Location: Colusa NWR--Abel Rd.
  30. teal sp. Anatidae sp. (teal sp.)
    # Count: X
    Date:
    Observer: Pat Dwyer
    Location: Colusa NWR--Abel Rd.
  31. Lesser/Greater Yellowlegs Tringa flavipes/melanoleuca
    # Count: 6
    Date:
    Observer: LINDA & NICK MOLATORE
    Location: Colusa NWR--Auto Tour Route
  32. Calidris sp. Calidris sp.
    # Count: 8
    Date:
    Observer: Mary Neilsen
    Location: Colusa NWR--Auto Tour Route
  33. Ring-necked/Green Pheasant Phasianus colchicus/versicolor
    # Count: 2
    Date:
    Observer: Gretchen Ousterhout
    Location: Colusa NWR--walking trail
  34. Empidonax sp. Empidonax sp.
    # Count: 1
    Date:
    Observer: Big Beef
    Location: Fouts Springs Valley (includes creeks & campgrounds)
  35. hummingbird sp. Trochilidae sp.
    # Count: 1
    Date:
    Observer: Daniel Welsh
    Location: Cache Creek Natural Area--High Bridge Trailhead
  36. falcon sp. Falco sp.
    # Count: 1
    Date:
    Observer: Bruce Mast
    Location: Snow Mountain Wilderness (Colusa Co.)
  37. passerine sp. Passeriformes sp.
    # Count: 1
    Date:
    Observer: Colin Urmson
    Location: Four Mile Road
  38. swan sp. Cygnus sp.
    # Count: 20
    Date:
    Observer: George Chrisman
    Location: I-5--Maxwell Rest Area
  39. new world goldfinch sp. Spinus sp. (goldfinch sp.)
    # Count: 3
    Date:
    Observer: Sami LaRocca
    Location: Sand Creek Rd.
  40. Short-billed/Long-billed Dowitcher Limnodromus griseus/scolopaceus
    # Count: 20
    Date:
    Observer: Edward Stanton
    Location: Colusa NWR--Auto Tour Route
  41. rail/crake sp. Rallidae sp. (rail/crake sp.)
    # Count: 1
    Date:
    Observer: Kevin Hintsa
    Location: Colusa NWR--Auto Tour Route
  42. Accipiter sp. Accipiter sp.
    # Count: 2
    Date:
    Observer: Asher Perla
    Location: Colusa NWR--Abel Rd.
  43. Western/Clark's Grebe Aechmophorus occidentalis/clarkii
    # Count: 10
    Date:
    Observer: Ken Schneider
    Location: East Park Reservoir
  44. white egret sp. Egretta/Bubulcus/Ardea sp.
    # Count: 50
    Date:
    Observer: Van Pierszalowski
    Location: I-5 Corridor (COL Co.)
  45. Sharp-shinned/Cooper's Hawk Accipiter striatus/cooperii
    # Count: 1
    Date:
    Observer: Stephanie Levins
    Location: Colusa NWR--Auto Tour Route
  46. Larus sp. Larus sp.
    # Count: 1
    Date:
    Observer: Marty Freeland
    Location: Colusa NWR--Auto Tour Route
  47. new world sparrow sp. Passerellidae sp.
    # Count: 5
    Date:
    Observer: Mary-George Simonitch
    Location: Colusan-Sacramento River State Recreation Area
  48. Buteo sp. Buteo sp.
    # Count: 1
    Date:
    Observer: Margi Finch
    Location: Colusa NWR--walking trail
  49. Greater/Lesser Scaup Aythya marila/affinis
    # Count: 20
    Date:
    Observer: Susan Greef
    Location: Colusa NWR--Auto Tour Route
  50. duck sp. Anatidae (duck sp.)
    # Count: 50
    Date:
    Observer: Michael Rushton
    Location: White Rd.
  51. dabbling duck sp. Anatidae sp. (dabbling duck sp.)
    # Count: 500
    Date:
    Observer: Jennifer Whipple
    Location: Colusa NWR--Auto Tour Route
  52. woodpecker sp. Picidae sp.
    # Count: 1
    Date:
    Observer: May O
    Location: Colusa NWR
  53. Aythya sp. Aythya sp.
    # Count: 2
    Date:
    Observer: Zane Pickus
    Location: East Park Reservoir
  54. goose sp. Anatidae (goose sp.)
    # Count: 2000
    Date:
    Observer: Lucas Corneliussen
    Location: Ohm Rd.
  55. gull sp. Larinae sp.
    # Count: 5
    Date:
    Observer: Judy Meredith
    Location: Colusa NWR--Auto Tour Route
  56. Rufous/Allen's Hummingbird Selasphorus rufus/sasin
    # Count: 6
    Date:
    Observer: John Luther
    Location: Colusa NWR--Auto Tour Route
  57. peep sp. Calidris sp. (peep sp.)
    # Count: X
    Date:
    Observer: Craig Dodson
    Location: Colusa NWR--Auto Tour Route
  58. Snow/Ross's Goose Anser caerulescens/rossii
    # Count: 2
    Date:
    Observer: Melissa Rider
    Location: Colusa National Wildlife Refuge, Williams US-CA 39.18817, -122.04132
  59. hawk sp. Accipitridae sp. (hawk sp.)
    # Count: 1
    Date:
    Observer: Jennifer Reiersen
    Location: Steidlmayer Rd. Pond
  60. swallow sp. Hirundinidae sp.
    # Count: 9
    Date:
    Observer: Jennifer Reiersen
    Location: 2915-2917 California 20, Colusa, California, US (39.18, -121.992)
  61. blackbird sp. Icteridae sp.
    # Count: 4
    Date:
    Observer: Jennifer Reiersen
    Location: 2915-2917 California 20, Colusa, California, US (39.18, -121.992)