Illustrated Checklist

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Native and Naturalized (412)

  1. Last observed by william hoppes on 28 Feb 2024
  2. Last observed by Kenneth Mamitsuka on 24 Feb 2024
  3. Last observed by Andy N on 28 Jul 2022
  4. Last observed by Ketki Samel on 16 Apr 2024
  5. Last observed by Rohan Prinja on 22 Apr 2024
  6. Last observed by Susan Weinstein on 23 Nov 2022
  7. Last observed by Angela Ballard on 21 Apr 2024
  8. Last observed by Adrian Hinkle on 7 Jun 2019
  9. Last observed by J.R. Blair on 20 Apr 2024
  10. Last observed by Richard Jeffers on 21 Apr 2024
  11. Last observed by Rohan Prinja on 22 Apr 2024
  12. Last observed by Rohan Prinja on 22 Apr 2024
  13. Last observed by Carlos Mendoza on 4 Mar 2024
  14. Last observed by Garrett Lau on 22 Apr 2024
  15. Last observed by Rohan Prinja on 22 Apr 2024
  16. Last observed by Bob Bolles on 21 Apr 2024
  17. Last observed by Garrett Lau on 22 Apr 2024
  18. Last observed by Richard Jeffers on 21 Apr 2024
  19. Last observed by Christin New on 27 Mar 2024
  20. Last observed by Dori Faust on 22 Apr 2024
  21. Last observed by Garrett Lau on 26 Jan 2022
  22. Last observed by Richard Jeffers on 21 Apr 2024
  23. Last observed by Pete Dunten on 21 Apr 2024
  24. Last observed by Richard Jeffers on 21 Apr 2024
  25. Last observed by Laura Forrest on 3 Apr 2023
  26. Last observed by Dave Weber on 9 Nov 2007
  27. Last observed by Chris Henry on 26 Apr 2023
  28. Last observed by Dan Kadra on 22 Apr 2024
  29. Last observed by mark zdeblick on 21 Apr 2024
  30. Last observed by Janet Tashjian Hanson on 6 Apr 2024
  31. Last observed by Mohan Shenoy on 20 Apr 2024
  32. Last observed by Anonymous eBirder on 12 Apr 2024
  33. Last observed by Garrett Lau on 22 Apr 2024
  34. Last observed by Chris Overington on 22 Apr 2024
  35. Last observed by Goldie Klein on 22 Apr 2024
  36. Last observed by Michael Rogers on 31 Mar 2024
  37. Last observed by Adam Burnett on 21 Apr 2024
  38. Last observed by carl tuttle on 16 Apr 2024
  39. Last observed by Kim Blythe Higdon on 28 Mar 2024
  40. Last observed by Richard Jeffers on 21 Apr 2024
  41. Last observed by Angela Ballard on 21 Apr 2024
  42. Last observed by Garrett Lau on 22 Apr 2024
  43. Last observed by Josh McLaughlin on 22 Apr 2024
  44. Last observed by Michael Mammoser on 23 Sep 2023
  45. Last observed by Satomi Fujikawa on 22 Apr 2024
  46. Last observed by Craige Edgerton on 20 Apr 2024
  47. Last observed by Steve Rottenborn on 26 Jul 1996
  48. Last observed by David Suddjian on 14 May 2007
  49. Last observed by Matthew Dodder on 17 Jun 2023
  50. Last observed by Richard Jeffers on 21 Apr 2024
  51. Last observed by Garrett Lau on 11 May 2022
  52. Last observed by Steve Rottenborn on 27 Oct 2005
  53. Last observed by Jillian Sismondo on 21 Apr 2024
  54. Last observed by Rohan Prinja on 22 Apr 2024
  55. Last observed by Anonymous eBirder on 19 Sep 2020
  56. Last observed by Pete Dunten on 21 Apr 2024
  57. Last observed by Chris Overington on 22 Apr 2024
  58. Last observed by Santa Clara Valley Audubon County Archive Project on 15 Apr 1988
  59. Last observed by Adam Burnett on 21 Apr 2024
  60. Last observed by Richard Jeffers on 21 Apr 2024
  61. Last observed by carl tuttle on 19 Apr 2024
  62. Last observed by Peter LaTourrette on 22 Apr 2024
  63. Last observed by Dan Rabin on 22 Apr 2024
  64. Last observed by Gregory Kerekes on 22 Oct 2013
  65. Last observed by Pamela Clark on 26 Dec 2021
  66. Last observed by Matthew Dodder on 21 Apr 2024
  67. Last observed by Richard Jeffers on 24 Sep 2023
  68. Last observed by Rohan Prinja on 22 Apr 2024
  69. Last observed by Santa Clara Valley Audubon County Archive Project on 22 Jan 1977
  70. Last observed by Garrett Lau on 22 Apr 2024
  71. Last observed by Garrett Lau on 22 Apr 2024
  72. Last observed by Richard Jeffers on 21 Apr 2024
  73. Last observed by Will Brooks on 22 Jul 2017
  74. Last observed by Arnel Guanlao on 1 Sep 2003
  75. Last observed by Melissa Johnson on 22 Apr 2024
  76. Last observed by Melissa Johnson on 22 Apr 2024
  77. Last observed by Howard Friedman on 19 Apr 2024
  78. Last observed by Howard Friedman on 23 Sep 2023
  79. Last observed by Garrett Lau on 26 Jan 2023
  80. Last observed by Richard Jeffers on 21 Apr 2024
  81. Last observed by Richard Jeffers on 21 Apr 2024
  82. Last observed by Robert W. Reiling on 2 Oct 2020
  83. Last observed by Vinayak Hebbagil on 20 Apr 2024
  84. Last observed by Rohan Prinja on 22 Apr 2024
  85. Last observed by Matthew Dodder on 21 Apr 2024
  86. Last observed by Charles Sismondo on 3 Sep 2023
  87. Last observed by Michael Mammoser on 11 Dec 2023
  88. Last observed by Chris Overington on 5 Oct 2023
  89. Last observed by William Clark on 22 Dec 2023
  90. Last observed by Richard Jeffers on 26 Sep 2021
  91. Last observed by Marty Freeland on 15 Mar 2024
  92. Last observed by Melissa Johnson on 22 Apr 2024
  93. Last observed by Ryan Ludman on 10 Sep 2023
  94. Last observed by Carole Rose on 1 Aug 2017
  95. Last observed by Rohan Prinja on 22 Apr 2024
  96. Last observed by Garrett Lau on 22 Apr 2024
  97. Last observed by Michael Mammoser on 27 Aug 2023
  98. Last observed by Richard Jeffers on 29 Oct 2023
  99. Last observed by Steve Rottenborn on 7 Sep 1994
  100. Last observed by David Suddjian on 9 Sep 1986
  101. Last observed by Gena Zolotar on 4 Aug 2013
  102. Last observed by Mike Danzenbaker on 17 Sep 2022
  103. Last observed by Steve Rottenborn on 21 Apr 1999
  104. Last observed by Steve Rottenborn on 18 Nov 1996
  105. Last observed by Anonymous eBirder on 21 Sep 2023
  106. Last observed by Steve Rottenborn on 9 Feb 1994
  107. Last observed by Garrett Lau on 3 Mar 2024
  108. Last observed by Michael Rogers on 24 Sep 2023
  109. Last observed by Gordon Barrett on 12 Jul 2011
  110. Last observed by Kenneth Mamitsuka on 23 Mar 2024
  111. Last observed by Garrett Lau on 22 Apr 2024
  112. Last observed by Pete Dunten on 21 Apr 2024
  113. Last observed by Pete Dunten on 21 Apr 2024
  114. Last observed by Yvette MacDonald on 21 Mar 2024
  115. Last observed by Dessi Sieburth on 16 Feb 2024
  116. Last observed by Rohan Prinja on 22 Apr 2024
  117. Last observed by Noah Arthur on 17 Mar 2018
  118. Last observed by Matthew Dodder on 19 Apr 2024
  119. Last observed by Richard Jeffers on 21 Apr 2024
  120. Last observed by Jillian Sismondo on 2 Sep 2023
  121. Last observed by Santa Clara Valley Audubon County Archive Project on 3 May 2009
  122. Last observed by Garrett Lau on 22 Apr 2024
  123. Last observed by Melanie Barnett on 17 Sep 2023
  124. Last observed by Rohan Prinja on 22 Apr 2024
  125. Last observed by Richard Jeffers on 12 Sep 2008
  126. Last observed by Chris Overington on 18 Sep 2023
  127. Last observed by Pete Dunten on 21 Apr 2024
  128. Last observed by Rodrigo Dueñas on 30 Mar 2024
  129. Last observed by Simon Tickle on 12 Nov 2010
  130. Last observed by Martha Happ on 29 Jan 2017
  131. Last observed by Yvette MacDonald on 21 Mar 2024
  132. Last observed by Anonymous eBirder on 4 Nov 2011
  133. Last observed by Steve Rottenborn on 10 Nov 1993
  134. Last observed by Santa Clara Valley Audubon County Archive Project on 28 Dec 1961
  135. Last observed by Steve Rottenborn on 7 Sep 1994
  136. Last observed by Santa Clara Valley Audubon County Archive Project on 15 Jul 1979
  137. Last observed by Stephanie Floyd on 7 Nov 2007
  138. Last observed by Garrett Lau on 7 Feb 2024
  139. Last observed by Ellyn Corey on 7 Mar 2024
  140. Last observed by Vinayak Deshpande on 21 Apr 2024
  141. Last observed by Danielle Raad on 17 Mar 2024
  142. Last observed by Adam Burnett on 12 Aug 2022
  143. Last observed by Gordon Barrett on 16 Jun 2006
  144. Last observed by Rohan Prinja on 22 Apr 2024
  145. Last observed by Chris Overington on 22 Apr 2024
  146. Last observed by Andrew Bradshaw on 28 Aug 2021
  147. Last observed by Rohan Prinja on 22 Apr 2024
  148. Last observed by Peter LaTourrette on 22 Apr 2024
  149. Last observed by Amy McDonald on 15 May 2001
  150. Last observed by Diego Perez on 27 Nov 2023
  151. Last observed by Chris Overington on 22 Apr 2024
  152. Last observed by Anonymous eBirder on 22 Apr 2024
  153. Last observed by Alec Wyatt on 22 Apr 2024
  154. Last observed by Ivan Ha on 22 Apr 2024
  155. Last observed by Melissa Johnson on 22 Apr 2024
  156. Last observed by Jane Jordan on 22 Apr 2024
  157. Last observed by David Suddjian on 22 Feb 1989
  158. Last observed by Steve Buffi on 22 Apr 2024
  159. Last observed by Chris Overington on 22 Apr 2024
  160. Last observed by Jason Vassallo on 2 Dec 2016
  161. Last observed by Aidan Sinha on 21 Apr 2024
  162. Last observed by Michael Mammoser on 22 Aug 2018
  163. Last observed by Laurel Balyeat on 22 Apr 2024
  164. Last observed by Steve Rottenborn on 5 Nov 2022
  165. Last observed by Oksana Selavri on 27 Feb 2024
  166. Last observed by Richard Jeffers on 21 Apr 2024
  167. Last observed by Santa Clara Valley Audubon County Archive Project on 6 May 1980
  168. Last observed by Mike Danzenbaker on 22 Apr 2024
  169. Last observed by Félix Cloutier on 21 Apr 2024
  170. Last observed by Richard Jeffers on 21 Apr 2024
  171. Last observed by Tobias Rohmer on 22 Sep 2023
  172. Last observed by Chris Overington on 22 Apr 2024
  173. Last observed by Michael Mammoser on 16 Feb 2024
  174. Last observed by Steve Buffi on 22 Apr 2024
  175. Last observed by Chris Overington on 22 Apr 2024
  176. Last observed by Rodrigo Dueñas on 22 Apr 2024
  177. Last observed by Laurel Balyeat on 22 Apr 2024
  178. Last observed by John Scharpen on 22 Apr 2024
  179. Last observed by Jackson Mesick on 22 Apr 2024
  180. Last observed by Ryan Phillips on 7 Mar 2008
  181. Last observed by Nicholas Dehler on 20 Apr 2024
  182. Last observed by Mike Shafto on 21 Apr 2024
  183. Last observed by Mike Beggs on 20 Mar 2024
  184. Last observed by Félix Cloutier on 20 Apr 2024
  185. Last observed by Chris Overington on 22 Apr 2024
  186. Last observed by Sergey Pavlov on 6 Oct 2023
  187. Last observed by Steve Rottenborn on 8 Oct 2006
  188. Last observed by Terry Blows on 2 Jan 2017
  189. Last observed by Erica Fleniken on 30 Apr 2022
  190. Last observed by Chris Overington on 22 Apr 2024
  191. Last observed by Rohan Prinja on 22 Apr 2024
  192. Last observed by Jasen Liu on 5 Feb 2022
  193. Last observed by Dori Faust on 22 Apr 2024
  194. Last observed by Chris Overington on 8 Apr 2024
  195. Last observed by Chris Overington on 6 Apr 2024
  196. Last observed by Charles Sismondo on 14 Apr 2024
  197. Last observed by Santa Clara Valley Audubon County Archive Project on 7 Oct 2020
  198. Last observed by Michael Hawk on 22 Apr 2024
  199. Last observed by Michael Rogers on 20 Aug 2023
  200. Last observed by Santa Clara Valley Audubon County Archive Project on 6 Jun 2009
  201. Last observed by Andrew Ford on 23 May 2017
  202. Last observed by Jennifer Rycenga on 24 Jun 2019
  203. Last observed by Chris Overington on 22 Apr 2024
  204. Last observed by Michael Mammoser on 13 May 2001
  205. Last observed by Chris Overington on 22 Apr 2024
  206. Last observed by Steve Rottenborn on 28 Nov 1996
  207. Last observed by Michael Rogers on 24 Dec 2022
  208. Last observed by Santa Clara Valley Audubon County Archive Project on 24 Sep 2005
  209. Last observed by Chris Overington on 22 Apr 2024
  210. Last observed by Jackson Mesick on 22 Apr 2024
  211. Last observed by Richard Cimino on 2 Jan 1999
  212. Last observed by Santa Clara Valley Audubon County Archive Project on 10 Oct 2003
  213. Last observed by Chris Overington on 22 Apr 2024
  214. Last observed by Santa Clara Valley Audubon County Archive Project on 21 Mar 1989
  215. Last observed by Jackson Mesick on 22 Apr 2024
  216. Last observed by Michael Mammoser on 23 Nov 1996
  217. Last observed by Rohan Prinja on 22 Apr 2024
  218. Last observed by Peter Siciliano on 22 Apr 2024
  219. Last observed by Chris Overington on 22 Apr 2024
  220. Last observed by Josh McLaughlin on 22 Apr 2024
  221. Last observed by Leo ONeill on 17 Sep 2023
  222. Last observed by Jackson Mesick on 22 Apr 2024
  223. Last observed by Richard Jeffers on 21 Apr 2024
  224. Last observed by Rohan Prinja on 22 Apr 2024
  225. Last observed by Bob Bolles on 8 Oct 2023
  226. Last observed by Rodrigo Dueñas on 22 Apr 2024
  227. Last observed by Chris Overington on 22 Apr 2024
  228. Last observed by Chris Overington on 22 Apr 2024
  229. Last observed by David Blomdal on 20 Apr 2024
  230. Last observed by Robert Fisher on 22 Apr 2024
  231. Last observed by John Scharpen on 22 Apr 2024
  232. Last observed by Chris Overington on 22 Apr 2024
  233. Last observed by Deanna Rhoades on 22 Apr 2024
  234. Last observed by Naomi Goodman on 6 Apr 2024
  235. Last observed by Chris Overington on 22 Apr 2024
  236. Last observed by Craig Hunter on 21 Apr 2024
  237. Last observed by Rohan Prinja on 22 Apr 2024
  238. Last observed by Satomi Fujikawa on 22 Apr 2024
  239. Last observed by Denise & Paul on 18 Feb 2024
  240. Last observed by Jackson Mesick on 22 Apr 2024
  241. Last observed by Santa Clara Valley Audubon County Archive Project on 26 Oct 2005
  242. Last observed by Santa Clara Valley Audubon County Archive Project on 30 Sep 2000
  243. Last observed by Chris Overington on 22 Apr 2024
  244. Last observed by Anonymous eBirder on 2 Jan 2023
  245. Last observed by Rodrigo Dueñas on 22 Apr 2024
  246. Last observed by Linda Terrill on 11 Nov 2023
  247. Last observed by Anonymous eBirder on 12 Apr 2024
  248. Last observed by Andrew Melnick on 21 Apr 2024
  249. Last observed by Craig Hunter on 21 Apr 2024
  250. Last observed by Amy Patten on 1 Jun 2017
  251. Last observed by Robert Lockett on 22 Apr 2024
  252. Last observed by CBRC Review Species on 19 Nov 2022
  253. Last observed by Santa Clara Valley Audubon County Archive Project on 3 Feb 1967
  254. Last observed by Richard Jeffers on 21 Apr 2024
  255. Last observed by Sandy Hamilton on 15 Apr 2024
  256. Last observed by Chris Henry on 22 Apr 2024
  257. Last observed by Dave Weber on 9 Mar 2001
  258. Last observed by Steve Rottenborn on 6 Dec 2011
  259. Last observed by David Dwyer on 21 Apr 2024
  260. Last observed by Satomi Fujikawa on 22 Apr 2024
  261. Last observed by John Scharpen on 22 Apr 2024
  262. Last observed by Elinor Gates on 10 Apr 2021
  263. Last observed by Ashutosh Sinha on 20 Apr 2024
  264. Last observed by Chris Overington on 22 Apr 2024
  265. Last observed by Satomi Fujikawa on 22 Apr 2024
  266. Last observed by Charles Sismondo on 14 Apr 2024
  267. Last observed by Jane Jordan on 22 Apr 2024
  268. Last observed by Eric Goodill on 5 Nov 2015
  269. Last observed by Charles Sismondo on 21 Apr 2024
  270. Last observed by David Nickerson on 24 Oct 2023
  271. Last observed by Susan Weinstein on 21 Sep 2022
  272. Last observed by Andy Bradvica on 21 Apr 2024
  273. Last observed by Rohan Prinja on 8 Sep 2023
  274. Last observed by Erica Fleniken on 18 Apr 2024
  275. Last observed by Laurel Balyeat on 22 Apr 2024
  276. Last observed by Peter LaTourrette on 22 Apr 2024
  277. Last observed by Adam Burnett on 21 Apr 2024
  278. Last observed by Peter LaTourrette on 22 Apr 2024
  279. Last observed by Garrett Lau on 8 Oct 2022
  280. Last observed by Michael Mammoser on 7 Sep 2018
  281. Last observed by Dani Christensen on 11 Mar 2024
  282. Last observed by Rohan Prinja on 22 Apr 2024
  283. Last observed by Michael Rogers on 17 Mar 2024
  284. Last observed by Satomi Fujikawa on 22 Apr 2024
  285. Last observed by Josh McLaughlin on 22 Apr 2024
  286. Last observed by Anonymous eBirder on 18 Oct 2022
  287. Last observed by Chris Overington on 22 Apr 2024
  288. Last observed by Sergey Pavlov on 19 Oct 2022
  289. Last observed by Jackson Mesick on 22 Apr 2024
  290. Last observed by Gena Zolotar on 25 Oct 2020
  291. Last observed by Laurel Balyeat on 22 Apr 2024
  292. Last observed by Brian Ahern on 22 Apr 2024
  293. Last observed by Brent Thordarson on 19 May 2013
  294. Last observed by Santa Clara Valley Audubon County Archive Project on 20 Apr 1991
  295. Last observed by Rohan Prinja on 22 Apr 2024
  296. Last observed by Carlos Mendoza on 20 Dec 2023
  297. Last observed by Jasper Barnes on 31 May 2020
  298. Last observed by Michael Mammoser on 17 Nov 2008
  299. Last observed by Richard Jeffers on 18 Aug 2004
  300. Last observed by Santa Clara Valley Audubon County Archive Project on 29 Sep 1991
  301. Last observed by John Scharpen on 1 Oct 2023
  302. Last observed by Chris Overington on 22 Apr 2024
  303. Last observed by Stephan Pleines on 29 Dec 2014
  304. Last observed by Chris Overington on 22 Apr 2024
  305. Last observed by Chris Overington on 22 Apr 2024
  306. Last observed by Santa Clara Valley Audubon County Archive Project on 18 Sep 1987
  307. Last observed by Peter Wilton on 30 May 2020
  308. Last observed by Charles Sismondo on 25 Sep 2022
  309. Last observed by Lee-Hong Chang on 17 Oct 2016
  310. Last observed by Michael Mammoser on 23 Jun 2023
  311. Last observed by Anonymous eBirder on 23 Oct 2021
  312. Last observed by Megan Hausler on 4 Oct 2020
  313. Last observed by Keith Bailey on 9 Dec 2018
  314. Last observed by Chris Johnson on 17 Mar 2024
  315. Last observed by Donald Pendleton on 8 Oct 2015
  316. Last observed by Steve Rottenborn on 4 Jan 1998
  317. Last observed by Chris Overington on 22 Apr 2024
  318. Last observed by Richard Jeffers on 21 Apr 2024
  319. Last observed by Melissa Johnson on 22 Sep 2022
  320. Last observed by Chris Overington on 22 Apr 2024
  321. Last observed by Lani Sherman on 3 Apr 2023
  322. Last observed by Ellyn Corey on 21 Mar 2024
  323. Last observed by Ed Pandolfino on 9 Aug 1994
  324. Last observed by Laurel Balyeat on 22 Apr 2024
  325. Last observed by Mike Beggs on 15 Apr 2024
  326. Last observed by Chris Overington on 22 Apr 2024
  327. Last observed by Michael Rogers on 1 Dec 2023
  328. Last observed by Anonymous eBirder on 17 Sep 2023
  329. Last observed by Matthew Dodder on 20 Feb 2024

Exotic: Provisional (2)

  1. Last observed by Chris Overington on 5 Jul 2023
  2. Last observed by Garth Harwood on 12 Apr 2004

Exotic: Escapee (43)

  1. Last observed by Alie Victorine on 1 Nov 2020
  2. Last observed by Rusty H on 20 Nov 2014
  3. Last observed by Steve Rottenborn on 4 Apr 2023
  4. Last observed by Steve Rottenborn on 26 Feb 1994
  5. Last observed by Jeff Miller on 1 Mar 2019
  6. Last observed by Remigio Miguel on 20 Apr 2024
  7. Last observed by Heather Anderson on 25 Dec 2022
  8. Last observed by Susan Weinstein on 25 Sep 2020
  9. Last observed by Gordon Barrett on 16 Jun 2003
  10. Last observed by Peter Hock on 3 Mar 2022
  11. Last observed by Simon Tickle on 14 Jun 2012
  12. Last observed by steve rabin on 5 Nov 2023
  13. Last observed by Hugh McDevitt on 26 Dec 2022
  14. Last observed by Bill Pelletier on 31 Aug 2015
  15. Last observed by Alice Liu on 20 Aug 2023
  16. Last observed by Eve Meier on 12 Jul 2020
  17. Last observed by Brian Sullivan on 9 Oct 2023
  18. Last observed by Michael Rogers on 13 Oct 2023
  19. Last observed by Peter LaTourrette on 1 Feb 2019
  20. Last observed by Richard Cimino on 1 Apr 1995
  21. Last observed by Ryan Phillips on 15 Feb 2015
  22. Last observed by Erica Fleniken on 28 Mar 2024
  23. Last observed by Linda Koski on 29 Oct 2023
  24. Last observed by James Buckingham on 15 Sep 2018
  25. Last observed by Steve Rottenborn on 16 Nov 1995
  26. Last observed by Steve Rottenborn on 17 Sep 1993
  27. Last observed by Anonymous eBirder on 15 Nov 2020
  28. Last observed by David Nickerson on 28 Sep 2015
  29. Last observed by Frank Hawkins on 1 May 2014
  30. Last observed by Jennifer Unger on 30 Jul 2018

Hybrids (28)

  1. Greater White-fronted x Canada Goose (hybrid) Anser albifrons x Branta canadensis
    Last observed by Linda Sullivan on 10 Feb 2022
  2. Graylag x Canada Goose (hybrid) Anser anser x Branta canadensis
    Last observed by Barbara Coll on 2 Mar 2021
  3. Domestic goose sp. x Canada Goose (hybrid) Anser sp. (Domestic type) x Branta canadensis
    Last observed by Kaiting H on 20 Apr 2024
  4. Blue-winged x Cinnamon Teal (hybrid) Spatula discors x cyanoptera
    Last observed by Mike Danzenbaker on 9 Mar 2023
  5. Blue-winged Teal x Northern Shoveler (hybrid) Spatula discors x clypeata
    Last observed by Adam Burnett on 21 Apr 2024
  6. Cinnamon Teal x Northern Shoveler (hybrid) Spatula cyanoptera x clypeata
    Last observed by Ariel Potter on 6 Nov 2022
  7. Eurasian x American Wigeon (hybrid) Mareca penelope x americana
    Last observed by Chris MacIntosh on 31 Jan 2024
  8. Muscovy Duck x Mallard (hybrid) Cairina moschata x Anas platyrhynchos
    Last observed by Carlos Mendoza on 4 Jan 2024
  9. Wood Duck x Mallard (hybrid) Aix sponsa x Anas platyrhynchos
    Last observed by Steve Rottenborn on 21 Oct 1994
  10. Gadwall x Mallard (hybrid) Mareca strepera x Anas platyrhynchos
    Last observed by Anonymous eBirder on 16 Dec 2020
  11. American Wigeon x Mallard (hybrid) Mareca americana x Anas platyrhynchos
    Last observed by Steve Rottenborn on 4 Jan 2000
  12. Mallard x Northern Pintail (hybrid) Anas platyrhynchos x acuta
    Last observed by Steve Rottenborn on 9 Feb 1995
  13. Tufted Duck x scaup sp. (hybrid) Aythya fuligula x marila/affinis
    Last observed by Garrett Lau on 7 Apr 2021
  14. Common x Barrow's Goldeneye (hybrid) Bucephala clangula x islandica
    Last observed by Ellyn Corey on 27 Mar 2024
  15. Anna's x Costa's Hummingbird (hybrid) Calypte anna x costae
    Last observed by Steve Rottenborn on 20 Mar 1998
  16. Common Gallinule x American Coot (hybrid) Gallinula galeata x Fulica americana
    Last observed by Steve Rottenborn on 24 Jul 1995
  17. Herring x Glaucous Gull (hybrid) Larus argentatus x hyperboreus
    Last observed by Bob Toleno on 13 Nov 2021
  18. Western x Glaucous-winged Gull (hybrid) Larus occidentalis x glaucescens
    Last observed by Marty Freeland on 15 Mar 2024
  19. Herring x Glaucous-winged Gull (hybrid) Larus argentatus x glaucescens
    Last observed by Noah Arthur on 21 Mar 2024
  20. Glaucous x Glaucous-winged Gull (hybrid) Larus hyperboreus x glaucescens
    Last observed by Steve Tucker on 9 Jan 2021
  21. Red-tailed x Rough-legged Hawk (hybrid) Buteo jamaicensis x lagopus
    Last observed by Peter Hart on 29 Dec 2020
  22. Red-naped x Red-breasted Sapsucker (hybrid) Sphyrapicus nuchalis x ruber
    Last observed by Pete Dunten on 24 Jan 2024
  23. Downy x Nuttall's Woodpecker (hybrid) Dryobates pubescens x nuttallii
    Last observed by Carter Gasiorowski on 22 Feb 2024
  24. White-crowned x Golden-crowned Sparrow (hybrid) Zonotrichia leucophrys x atricapilla
    Last observed by Chris Henry on 16 Apr 2024
  25. White-crowned x White-throated Sparrow (hybrid) Zonotrichia leucophrys x albicollis
    Last observed by Steve Tucker on 10 Apr 2018
  26. Golden-crowned x White-throated Sparrow (hybrid) Zonotrichia atricapilla x albicollis
    Last observed by Steve Rottenborn on 7 Jan 2023
  27. Townsend's x Hermit Warbler (hybrid) Setophaga townsendi x occidentalis
    Last observed by Howard Friedman on 16 Nov 2022
  28. Lazuli x Indigo Bunting (hybrid) Passerina amoena x cyanea
    Last observed by Tristan Yoo on 3 Nov 2023

Additional Taxa (121)

  1. Snow/Ross's Goose Anser caerulescens/rossii
    Last observed by Peter Hock on 11 Apr 2024
  2. Domestic goose sp. (Domestic type) Anser sp. (Domestic type)
    Last observed by Kaiting H on 20 Apr 2024
  3. swan sp. Cygnus sp.
    Last observed by M K on 15 May 2023
  4. goose sp. Anatidae (goose sp.)
    Last observed by Michelle MacKenzie on 30 Jan 2023
  5. Blue-winged/Cinnamon Teal Spatula discors/cyanoptera
    Last observed by Anonymous eBirder on 13 Apr 2024
  6. teal sp. Anatidae sp. (teal sp.)
    Last observed by Martina Morelli on 11 Jun 2022
  7. dabbling duck sp. Anatidae sp. (dabbling duck sp.)
    Last observed by Bill Bousman on 5 Sep 1985
  8. Greater/Lesser Scaup Aythya marila/affinis
    Last observed by Rusty H on 31 Mar 2024
  9. Aythya sp. Aythya sp.
    Last observed by Dave Slager on 13 Nov 2022
  10. scoter sp. Melanitta sp.
    Last observed by Steve Rottenborn on 12 Nov 1994
  11. Common/Barrow's Goldeneye Bucephala clangula/islandica
    Last observed by Vivek Tiwari on 31 Mar 2024
  12. merganser sp. Mergellus/Lophodytes/Mergus sp.
    Last observed by Greg Luckert on 24 Feb 2023
  13. duck sp. Anatidae (duck sp.)
    Last observed by Aidan Sinha on 21 Apr 2024
  14. waterfowl sp. Anatidae sp.
    Last observed by Seb H on 23 Oct 2019
  15. pheasant sp. Phasianidae sp. (pheasant sp.)
    Last observed by Jason Vassallo on 3 Nov 2017
  16. American/Greater Flamingo Phoenicopterus ruber/roseus
    Last observed by stephen johnson 🦜 on 10 Jul 2013
  17. flamingo sp. Phoenicopteridae sp.
    Last observed by David Zittin on 30 Sep 2014
  18. Horned/Eared Grebe Podiceps auritus/nigricollis
    Last observed by Robert Zanardelli on 31 Mar 2024
  19. Western/Clark's Grebe Aechmophorus occidentalis/clarkii
    Last observed by Edward Rooks on 21 Apr 2024
  20. grebe sp. Podicipedidae sp.
    Last observed by Anonymous eBirder on 9 Jul 2022
  21. pigeon/dove sp. Columbidae sp.
    Last observed by Aidan Sinha on 20 Apr 2024
  22. nighthawk sp. Chordeiles sp.
    Last observed by Anne Hoff on 12 May 2018
  23. Chimney/Vaux's Swift Chaetura pelagica/vauxi
    Last observed by Carter Gasiorowski on 26 Aug 2023
  24. large swift sp. Apodidae sp. (large swift sp.)
    Last observed by Gaurav Manglik on 15 May 2021
  25. swift sp. Apodidae sp.
    Last observed by Susan Tenney on 17 Sep 2023
  26. Anna's/Costa's Hummingbird Calypte anna/costae
    Last observed by Michael Rogers on 13 Dec 2022
  27. Rufous/Allen's Hummingbird Selasphorus rufus/sasin
    Last observed by Richard Jeffers on 21 Apr 2024
  28. Selasphorus sp. Selasphorus sp.
    Last observed by Virginia Langdon-Lassagne on 27 Mar 2021
  29. hummingbird sp. Trochilidae sp.
    Last observed by Ryan Ludman on 21 Apr 2024
  30. large rail sp. Rallus sp. (large Rallus sp.)
    Last observed by Coetzee Pretorius on 7 Oct 2023
  31. Rallus sp. Rallus sp.
    Last observed by Krissy Arnst on 24 Sep 2022
  32. moorhen/coot/gallinule sp. Gallinula/Fulica/Porphyrio sp.
    Last observed by Phil LaTourette on 5 May 2013
  33. rail/crake sp. Rallidae sp. (rail/crake sp.)
    Last observed by Tristan Yoo on 4 Nov 2023
  34. American/Pacific Golden-Plover (Lesser Golden-Plover) Pluvialis dominica/fulva
    Last observed by Laura Forrest on 10 Sep 2023
  35. golden-plover sp. Pluvialis dominica/apricaria/fulva
    Last observed by Monica P on 4 Jul 2021
  36. Black-bellied Plover/golden-plover sp. Pluvialis sp.
    Last observed by Rudyard Wallen on 16 Aug 2014
  37. small plover sp. Charadrius/Anarhynchus sp.
    Last observed by Brian Ahern on 5 May 2023
  38. Short-billed/Long-billed Dowitcher Limnodromus griseus/scolopaceus
    Last observed by Melissa Johnson on 22 Apr 2024
  39. phalarope sp. Phalaropus sp.
    Last observed by Be Tee on 20 Sep 2023
  40. Lesser/Greater Yellowlegs Tringa flavipes/melanoleuca
    Last observed by Janet Tashjian Hanson on 14 Apr 2024
  41. Western/Semipalmated Sandpiper Calidris mauri/pusilla
    Last observed by Aaron Sun on 20 Aug 2023
  42. peep sp. Calidris sp. (peep sp.)
    Last observed by Aidan Sinha on 21 Apr 2024
  43. Calidris sp. Calidris sp.
    Last observed by Rohan Prinja on 22 Apr 2024
  44. large shorebird sp. Scolopacidae sp. (large shorebird sp.)
    Last observed by Aidan Sinha on 21 Apr 2024
  45. shorebird sp. Charadriiformes sp.
    Last observed by Bob Strobe on 23 Jan 2024
  46. Parasitic/Pomarine Jaeger Stercorarius parasiticus/pomarinus
    Last observed by Steve Rottenborn on 23 Jan 1994
  47. Larus sp. Larus sp.
    Last observed by Seth Greene on 21 Apr 2024
  48. gull sp. Larinae sp.
    Last observed by Carole Gonsalves on 22 Apr 2024
  49. Sterna sp. Sterna sp.
    Last observed by John Braverman on 23 Apr 2010
  50. large tern sp. Hydroprogne/Thalasseus sp.
    Last observed by Ben West on 29 Apr 2022
  51. tern sp. Sterninae sp.
    Last observed by Karen O'Brien on 23 Feb 2024
  52. loon sp. Gavia sp.
    Last observed by Lesley Boncich on 15 Mar 2024
  53. cormorant sp. Phalacrocoracidae sp.
    Last observed by Aidan Sinha on 23 Dec 2023
  54. heron sp. Ardeidae sp.
    Last observed by Ryan Ludman on 10 Sep 2022
  55. white egret sp. Egretta/Bubulcus/Ardea sp.
    Last observed by Aidan Sinha on 21 Apr 2024
  56. Glossy/White-faced Ibis Plegadis falcinellus/chihi
    Last observed by Amy &James on 20 Jun 2019
  57. Sharp-shinned/Cooper's Hawk Accipiter striatus/cooperii
    Last observed by Ryan G. on 17 Apr 2024
  58. Accipiter sp. Accipiter sp.
    Last observed by Elliot Wallis on 13 Mar 2024
  59. Golden/Bald Eagle Aquila chrysaetos/Haliaeetus leucocephalus
    Last observed by Alden Hughes on 7 Dec 2021
  60. Buteo sp. Buteo sp.
    Last observed by Danielle Bragg on 12 Apr 2024
  61. hawk sp. Accipitridae sp. (hawk sp.)
    Last observed by Ryan Ludman on 19 Apr 2024
  62. eagle sp. Accipitridae sp. (eagle sp.)
    Last observed by David Nickerson on 18 Dec 2015
  63. owl sp. Strigiformes sp.
    Last observed by katherine alsup on 10 May 2023
  64. Yellow-bellied/Red-naped Sapsucker Sphyrapicus varius/nuchalis
    Last observed by Brooke Miller on 9 Feb 2023
  65. sapsucker sp. Sphyrapicus sp.
    Last observed by Dori Faust on 18 Mar 2024
  66. Downy/Hairy Woodpecker Dryobates pubescens/villosus
    Last observed by Ryan Ludman on 21 Apr 2024
  67. woodpecker sp. Picidae sp.
    Last observed by Bob Bolles on 17 Apr 2024
  68. large falcon sp. Falco sp. (large falcon sp.)
    Last observed by Sergey Pavlov on 22 Oct 2023
  69. small falcon sp. Falco sp. (small falcon sp.)
    Last observed by Loni Ye on 29 Jan 2022
  70. falcon sp. Falco sp.
    Last observed by Jaclyn Tolchin on 19 Apr 2024
  71. diurnal raptor sp. Accipitriformes/Falconiformes sp.
    Last observed by Lawrence Seeberger on 5 Mar 2023
  72. lovebird sp. Agapornis sp.
    Last observed by Chris Johnson on 17 Sep 2019
  73. Amazona sp. Amazona sp.
    Last observed by Richard Jeffers on 21 Oct 2020
  74. Mitred/Red-masked Parakeet Psittacara mitratus/erythrogenys
    Last observed by Trevor Longbottom on 6 Jan 2024
  75. large parakeet sp. (former Aratinga sp.) Eupsittula/Aratinga/Thectocercus/Psittacara sp.
    Last observed by Tom Schulenberg on 20 May 2013
  76. parakeet sp. Psittaciformes sp. (parakeet sp.)
    Last observed by The Kingbirder on 5 Feb 2022
  77. parrot sp. Psittaciformes sp. (parrot sp.)
    Last observed by Emilie Strauss on 3 Aug 2021
  78. Gray/Dusky Flycatcher Empidonax wrightii/oberholseri
    Last observed by Bryan Mori on 24 Apr 2019
  79. Empidonax sp. Empidonax sp.
    Last observed by Be Tee on 15 Apr 2024
  80. Cassin's/Western Kingbird Tyrannus vociferans/verticalis
    Last observed by Barry Langdon-Lassagne on 7 Apr 2019
  81. yellow-bellied kingbird sp. Tyrannus sp. (yellow-bellied)
    Last observed by Ryan Ludman on 3 Apr 2024
  82. new world flycatcher sp. Tyrannidae sp.
    Last observed by Ellen A on 5 Mar 2022
  83. solitary vireo sp. Vireo cassinii/solitarius/plumbeus
    Last observed by Jean Richmond on 28 May 1974
  84. vireo sp. Vireo sp.
    Last observed by Richard Jeffers on 1 Oct 2023
  85. jay sp. Corvidae sp. (jay sp.)
    Last observed by Dave Slager on 12 Nov 2022
  86. raven sp. Corvus sp. (raven sp.)
    Last observed by Lillian McMath on 17 Mar 2024
  87. crow/raven sp. Corvus sp.
    Last observed by Linda Sullivan on 30 Mar 2024
  88. Tree/Violet-green Swallow Tachycineta bicolor/thalassina
    Last observed by Melissa Johnson on 19 Apr 2024
  89. swallow sp. Hirundinidae sp.
    Last observed by Carole Gonsalves on 22 Apr 2024
  90. Arctic/Kamchatka Leaf Warbler Phylloscopus borealis/examinandus
    Last observed by Michael Rogers on 7 Sep 2000
  91. nuthatch sp. Sitta sp.
    Last observed by Alden Hughes on 18 Dec 2023
  92. wren sp. Troglodytidae sp.
    Last observed by Sabra Abraham on 15 Nov 2023
  93. mimid sp. Mimidae sp.
    Last observed by Courtney Kelly Jett on 6 Apr 2019
  94. bluebird sp. Sialia sp.
    Last observed by Aidan Sinha on 24 Nov 2022
  95. Catharus sp. Catharus sp.
    Last observed by Richard Jeffers on 30 Sep 2022
  96. thrush sp. Turdidae sp.
    Last observed by Michael Rogers on 17 Jan 2021
  97. House/Purple Finch Haemorhous mexicanus/purpureus
    Last observed by John McClain on 17 Mar 2024
  98. Purple/Cassin's Finch Haemorhous purpureus/cassinii
    Last observed by Steve Rottenborn on 1 Nov 1996
  99. Haemorhous sp. Haemorhous sp.
    Last observed by CoeBirdSurveys c/oAmyLauterbach&SCVAS.org on 7 Jun 2011
  100. new world goldfinch sp. Spinus sp. (goldfinch sp.)
    Last observed by Suzanne Johannet on 12 Apr 2024
  101. Spinus sp. Spinus sp.
    Last observed by Sergey Pavlov on 15 Oct 2023
  102. finch sp. Fringillidae sp.
    Last observed by Courtney Kelly Jett on 2 Apr 2019
  103. longspur sp. Calcarius/Rhynchophanes sp.
    Last observed by Marty Freeland on 23 Oct 2023
  104. Zonotrichia sp. Zonotrichia sp.
    Last observed by Anonymous eBirder on 6 Apr 2024
  105. Lincoln's/Swamp Sparrow Melospiza lincolnii/georgiana
    Last observed by Dave Slager on 11 Nov 2022
  106. new world sparrow sp. Passerellidae sp.
    Last observed by Laurel Balyeat on 10 Apr 2024
  107. Orchard/Hooded Oriole Icterus spurius/cucullatus
    Last observed by Steve Tucker on 7 Oct 2018
  108. new world oriole sp. Icterus sp.
    Last observed by Sarah Chan on 14 Apr 2024
  109. Red-winged/Tricolored Blackbird Agelaius phoeniceus/tricolor
    Last observed by Sergey Pavlov on 5 Nov 2023
  110. blackbird sp. Icteridae sp.
    Last observed by Aidan Sinha on 21 Apr 2024
  111. Connecticut/MacGillivray's/Mourning Warbler Oporornis/Geothlypis sp. (Mourning-type)
    Last observed by Santa Clara Valley Audubon County Archive Project on 2 Sep 1987
  112. Bay-breasted/Blackpoll Warbler Setophaga castanea/striata
    Last observed by Peg Albrets on 6 Oct 2020
  113. Black-throated Gray/Hermit Warbler Setophaga nigrescens/occidentalis
    Last observed by Chris Johnson on 6 Jun 2021
  114. Townsend's/Hermit Warbler Setophaga townsendi/occidentalis
    Last observed by Sergey Pavlov on 28 Feb 2021
  115. new world warbler sp. Parulidae sp.
    Last observed by Carolyn Straub on 15 Mar 2024
  116. tanager sp. (Piranga sp.) Piranga sp.
    Last observed by Carlos Mendoza on 6 Apr 2023
  117. Rose-breasted/Black-headed Grosbeak Pheucticus ludovicianus/melanocephalus
    Last observed by Steve Rottenborn on 13 Feb 1995
  118. Lazuli/Indigo Bunting Passerina amoena/cyanea
    Last observed by Michael Rogers on 11 Sep 2021
  119. Passerina sp. Passerina sp.
    Last observed by Michael Rogers on 22 May 2023
  120. passerine sp. Passeriformes sp.
    Last observed by Aidan Sinha on 20 Apr 2024
  121. bird sp. Aves sp.
    Last observed by Sergey Pavlov on 15 Oct 2023