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The Cornell Lab of Ornithology builds the eBird global platform for communities and partners around the world to advance data-driven science, education, and conservation.

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Elkhorn Slough--general (east of Hwy 1 only)

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Illustrated Checklist

 Powered by Macaulay Library and eBird
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228 Species Observed
Species w/ Photos
Species w/ Audio
Species Needing Photos
Species Needing Audio
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Native and Naturalized (228)

  1. Last observed by John Sterling on 7 Jan 2003
  2. Last observed by Alex Loos on 21 Jan 2018
  3. Last observed by Phil Ullman on 21 Dec 2011
  4. Last observed by Eric Halverson on 30 Sep 2018
  5. Last observed by Michael Raschke on 9 Feb 2023
  6. Last observed by Claudia Tibbs on 4 Nov 2017
  7. Last observed by Lindsey Mitchell on 16 Mar 2024
  8. Last observed by Jeff Bleam on 9 Nov 2005
  9. Last observed by Cooper Scollan on 4 Jan 2024
  10. Last observed by Cooper Scollan on 4 Jan 2024
  11. Last observed by Elaine Hammond on 3 Mar 2024
  12. Last observed by Elaine Hammond on 3 Mar 2024
  13. Last observed by Will Kennerley on 4 Jan 2019
  14. Last observed by Elaine Hammond on 3 Mar 2024
  15. Last observed by Oliver Patrick on 20 Mar 2024
  16. Last observed by Lexi Thomas on 25 Jan 2024
  17. Last observed by Jonathan Meyer on 3 Mar 2023
  18. Last observed by Eric Wier on 18 Nov 2019
  19. Last observed by Megan Torres on 22 Apr 2018
  20. Last observed by Shiree Goins on 10 Oct 2020
  21. Last observed by David Suddjian on 27 Mar 1987
  22. Last observed by Cooper Scollan on 4 Jan 2024
  23. Last observed by Cooper Scollan on 4 Jan 2024
  24. Last observed by David Ekdahl on 16 Apr 1983
  25. Last observed by Lindsey Mitchell on 16 Mar 2024
  26. Last observed by Mike Levin on 6 Dec 2012
  27. Last observed by Alan Van Norman on 8 Oct 2019
  28. Last observed by Oliver Patrick on 20 Mar 2024
  29. Last observed by Susan Ogle on 22 Feb 2024
  30. Last observed by Cooper Scollan on 4 Jan 2024
  31. Last observed by Susan Ogle on 22 Feb 2024
  32. Last observed by Elaine Hammond on 3 Mar 2024
  33. Last observed by Christopher Soriano on 24 Sep 2023
  34. Last observed by Cade Kamaleson on 4 Jan 2024
  35. Last observed by Elaine Hammond on 3 Mar 2024
  36. Last observed by Laurel Armstrong on 16 Feb 2023
  37. Last observed by Alacia Welch on 1 Nov 2019
  38. Last observed by Lindsey Mitchell on 16 Mar 2024
  39. Last observed by Lindsey Mitchell on 16 Mar 2024
  40. Last observed by Lindsey Mitchell on 16 Mar 2024
  41. Last observed by Roberta Baker on 15 Sep 2023
  42. Last observed by Mary Krentz on 6 Apr 2019
  43. Last observed by Maggie Brown on 30 Jul 2023
  44. Last observed by Charlie Quattlebaum on 10 Apr 2023
  45. Last observed by Jay Hassell on 12 Apr 2018
  46. Last observed by Alexander Baillieul on 24 Mar 2001
  47. Last observed by Elaine Hammond on 3 Mar 2024
  48. Last observed by Jay Hassell on 12 Apr 2018
  49. Last observed by John Fleckenstein on 15 Feb 2020
  50. Last observed by Chris Carmichael on 5 Aug 2022
  51. Last observed by Hillar Klandorf on 4 Jan 2014
  52. Last observed by David Hohmann on 16 Dec 1994
  53. Last observed by Elaine Hammond on 3 Mar 2024
  54. Last observed by Zack Mikalonis on 29 Sep 2014
  55. Last observed by Elaine Hammond on 3 Mar 2024
  56. Last observed by Lindsey Mitchell on 16 Mar 2024
  57. Last observed by Oliver Patrick on 20 Mar 2024
  58. Last observed by Charlie Quattlebaum on 10 Apr 2023
  59. Last observed by Lindsey Mitchell on 16 Mar 2024
  60. Last observed by Laurel Armstrong on 16 Feb 2023
  61. Last observed by Max Ferrero on 29 Apr 2023
  62. Last observed by Oliver Patrick on 20 Mar 2024
  63. Last observed by Oliver Patrick on 20 Mar 2024
  64. Last observed by Eric VanderWerf on 18 Jul 2022
  65. Last observed by Jasper Meekes on 2 Jan 2024
  66. Last observed by Luc and Therese Jacobs on 9 Oct 2019
  67. Last observed by Della Bossart on 23 Aug 2022
  68. Last observed by Eric Halverson on 30 Sep 2018
  69. Last observed by Christopher Soriano on 24 Sep 2023
  70. Last observed by Jim McEnerney on 7 Oct 2023
  71. Last observed by Ron McCullick on 6 Sep 1998
  72. Last observed by Christopher Soriano on 24 Sep 2023
  73. Last observed by Oliver Patrick on 20 Mar 2024
  74. Last observed by Cooper Scollan on 4 Jan 2024
  75. Last observed by Don Glasco on 18 Feb 2020
  76. Last observed by Roberta Baker on 15 Sep 2023
  77. Last observed by Rick Fournier on 27 Feb 2022
  78. Last observed by Brian S on 11 Nov 2023
  79. Last observed by Max Ferrero on 29 Apr 2023
  80. Last observed by Christopher Soriano on 24 Sep 2023
  81. Last observed by Lexi Thomas on 25 Jan 2024
  82. Last observed by Bernadette Ramer on 30 Aug 2011
  83. Last observed by Jasper Meekes on 2 Jan 2024
  84. Last observed by Alan Knue on 2 Oct 1998
  85. Last observed by Andy N on 9 Oct 2023
  86. Last observed by Roberta Baker on 15 Sep 2023
  87. Last observed by Eric VanderWerf on 18 Jul 2022
  88. Last observed by Roberta Baker on 15 Sep 2023
  89. Last observed by Karen Burns on 11 Nov 2022
  90. Last observed by Oliver Patrick on 20 Mar 2024
  91. Last observed by Oliver Patrick on 20 Mar 2024
  92. Last observed by Iryna Dronova on 28 Mar 2021
  93. Last observed by Phil Green on 1 Feb 2007
  94. Last observed by Lexi Thomas on 25 Jan 2024
  95. Last observed by Don Glasco on 18 Feb 2020
  96. Last observed by Rick Fournier on 27 Feb 2020
  97. Last observed by Rick Fournier on 2 Apr 2017
  98. Last observed by shirley murphy on 5 Sep 2007
  99. Last observed by Robert Aramayo on 20 Aug 2023
  100. Last observed by shirley murphy on 23 Sep 1989
  101. Last observed by Lindsey Mitchell on 16 Mar 2024
  102. Last observed by Tonya Holland on 14 Sep 2017
  103. Last observed by Chase Carter on 14 Sep 2023
  104. Last observed by Zach Weinstein on 6 Feb 2021
  105. Last observed by Madeleine Ely on 26 Dec 2019
  106. Last observed by Lindsey Mitchell on 16 Mar 2024
  107. Last observed by Eric Wier on 18 Nov 2019
  108. Last observed by Lindsey Mitchell on 16 Mar 2024
  109. Last observed by Lindsey Mitchell on 16 Mar 2024
  110. Last observed by Oliver Patrick on 20 Mar 2024
  111. Last observed by Lexi Thomas on 25 Jan 2024
  112. Last observed by Susan Ogle on 22 Feb 2024
  113. Last observed by Chris Carmichael on 5 Aug 2022
  114. Last observed by Lindsey Mitchell on 16 Mar 2024
  115. Last observed by cole heim on 19 Aug 2018
  116. Last observed by Jeff Harding on 17 Apr 2010
  117. Last observed by Oliver Patrick on 20 Mar 2024
  118. Last observed by Lindsey Mitchell on 16 Mar 2024
  119. Last observed by Clare Ormesher on 10 Oct 2019
  120. Last observed by Elaine Hammond on 3 Mar 2024
  121. Last observed by Lexi Thomas on 25 Jan 2024
  122. Last observed by Elaine Hammond on 3 Mar 2024
  123. Last observed by Dennis Brouillet on 13 Nov 2019
  124. Last observed by Jasper Meekes on 2 Jan 2024
  125. Last observed by Lexi Thomas on 25 Jan 2024
  126. Last observed by Christopher Soriano on 24 Sep 2023
  127. Last observed by Leo ONeill on 3 Jan 2021
  128. Last observed by Jasper Meekes on 2 Jan 2024
  129. Last observed by Susan Ogle on 22 Feb 2024
  130. Last observed by Gary Deghi on 9 Feb 1993
  131. Last observed by Emily Maddox on 4 Nov 2017
  132. Last observed by Mark Hays on 9 Jan 2016
  133. Last observed by Claudia Tibbs on 4 Nov 2017
  134. Last observed by Rick Fournier on 24 Oct 2014
  135. Last observed by Cooper Scollan on 4 Jan 2024
  136. Last observed by spencer klinefelter on 26 Jan 2020
  137. Last observed by Lexi Thomas on 25 Jan 2024
  138. Last observed by Christopher Soriano on 24 Sep 2023
  139. Last observed by Kaylan Wessels on 19 Jun 2016
  140. Last observed by Keith Barnes on 28 Mar 2018
  141. Last observed by Christopher Soriano on 24 Sep 2023
  142. Last observed by Lexi Thomas on 25 Jan 2024
  143. Last observed by Nick Goelz on 29 Jan 2022
  144. Last observed by Robert Aramayo on 20 Aug 2023
  145. Last observed by James Roethe on 28 Apr 2007
  146. Last observed by Ethan Monk on 13 May 2014
  147. Last observed by Stacy Houser on 2 Sep 2022
  148. Last observed by Elaine Hammond on 3 Mar 2024
  149. Last observed by Lexi Thomas on 25 Jan 2024
  150. Last observed by David Ekdahl on 16 Apr 1983
  151. Last observed by Leo ONeill on 6 Dec 2020
  152. Last observed by Mary Krentz on 11 Apr 2009
  153. Last observed by Scott Bowers on 3 Apr 2021
  154. Last observed by Leo ONeill on 18 Nov 2020
  155. Last observed by Mario Díaz on 23 Dec 2022
  156. Last observed by Elaine Hammond on 3 Mar 2024
  157. Last observed by Elaine Hammond on 3 Mar 2024
  158. Last observed by Jonathan Meyer on 3 Mar 2023
  159. Last observed by Christopher Soriano on 24 Sep 2023
  160. Last observed by Mark Runyan on 30 Mar 2023
  161. Last observed by Jake Mohlmann on 6 Nov 2021
  162. Last observed by Charlie Quattlebaum on 10 Apr 2023
  163. Last observed by Charlie Quattlebaum on 10 Apr 2023
  164. Last observed by Charlie Quattlebaum on 10 Apr 2023
  165. Last observed by Maggie Brown on 30 Jul 2023
  166. Last observed by Eric VanderWerf on 18 Jul 2022
  167. Last observed by Mario Díaz on 23 Dec 2022
  168. Last observed by Christopher Soriano on 24 Sep 2023
  169. Last observed by Jonathan Meyer on 3 Mar 2023
  170. Last observed by Jack Wykoff on 28 Jan 1999
  171. Last observed by Eileen Zimlich on 25 Sep 2007
  172. Last observed by Christopher Soriano on 24 Sep 2023
  173. Last observed by Gilbert Bouchard on 26 Oct 2012
  174. Last observed by Michael Welch on 1 Jan 2012
  175. Last observed by Donald Reason on 19 Nov 2020
  176. Last observed by George Folsom on 16 May 2018
  177. Last observed by Douglas Brown on 2 Mar 2016
  178. Last observed by Cooper Scollan on 4 Jan 2024
  179. Last observed by Lexi Thomas on 25 Jan 2024
  180. Last observed by Lexi Thomas on 25 Jan 2024
  181. Last observed by Christopher Soriano on 24 Sep 2023
  182. Last observed by Kevin Smith on 9 May 2021
  183. Last observed by Anonymous eBirder on 13 Apr 2023
  184. Last observed by tyler krul on 26 Feb 2015
  185. Last observed by Tom Preston on 15 Jun 2022
  186. Last observed by Donald Reason on 19 Nov 2020
  187. Last observed by Jonathan Meyer on 3 Mar 2023
  188. Last observed by Fred Safier on 28 Apr 2019
  189. Last observed by Maggie Brown on 30 Jul 2023
  190. Last observed by Jake Mohlmann on 6 Nov 2021
  191. Last observed by Christopher Soriano on 24 Sep 2023
  192. Last observed by Nick Goelz on 29 Jan 2022
  193. Last observed by Gilbert Bouchard on 26 Oct 2012
  194. Last observed by Jake Mohlmann on 6 Nov 2021
  195. Last observed by Maggie Brown on 30 Jul 2023
  196. Last observed by Anders Kling on 25 May 1994
  197. Last observed by Leo ONeill on 18 Nov 2020
  198. Last observed by Christopher Soriano on 24 Sep 2023
  199. Last observed by Lexi Thomas on 25 Jan 2024
  200. Last observed by Lexi Thomas on 25 Jan 2024
  201. Last observed by Stephen Long on 27 Feb 2000
  202. Last observed by Jeff Bleam on 24 Dec 2007
  203. Last observed by Jonathan Meyer on 3 Mar 2023
  204. Last observed by Cooper Scollan on 4 Jan 2024
  205. Last observed by Madeleine Ely on 26 Dec 2019
  206. Last observed by Cade Kamaleson on 4 Jan 2024
  207. Last observed by Christopher Soriano on 24 Sep 2023
  208. Last observed by Sylvia Maulding on 8 Sep 1998
  209. Last observed by Jake Mohlmann on 6 Nov 2021
  210. Last observed by Anne Geraghty on 20 Mar 2023
  211. Last observed by Luc and Therese Jacobs on 9 Oct 2019
  212. Last observed by David Goodwin on 16 Oct 2021
  213. Last observed by Charlie Quattlebaum on 10 Apr 2023
  214. Last observed by Emily Maddox on 4 Nov 2017
  215. Last observed by Jonathan Meyer on 3 Mar 2023
  216. Last observed by Rodney Bartgis on 16 Sep 2003
  217. Last observed by Ruth Grant on 23 Sep 2005
  218. Last observed by Lexi Thomas on 25 Jan 2024
  219. Last observed by Jamie Dalton on 16 Oct 2020
  220. Last observed by Jamie Dalton on 16 Oct 2020
  221. Last observed by Jonathan Meyer on 3 Mar 2023
  222. Last observed by Bill Schmoker on 19 Sep 2006
  223. Last observed by Jake Mohlmann on 6 Nov 2021
  224. Last observed by Scott Bowers on 3 Apr 2021
  225. Last observed by Ruth Grant on 23 Sep 2005
  226. Last observed by J Tanner on 30 Apr 2016
  227. Last observed by George Folsom on 16 May 2018
  228. Last observed by Mike Yough on 1 Aug 2002

Exotic: Escapee (2)

  1. Last observed by Bill Pulliam on 7 Dec 1980
  2. Last observed by shirley murphy on 8 Mar 2010

Hybrids (1)

  1. Western x Glaucous-winged Gull (hybrid) Larus occidentalis x glaucescens
    Last observed by Karl Bardon on 8 Dec 2018

Additional Taxa (31)

  1. Blue-winged/Cinnamon Teal Spatula discors/cyanoptera
    Last observed by victor fesolowitz on 27 Sep 2018
  2. teal sp. Anatidae sp. (teal sp.)
    Last observed by Cathy DiSalvo on 8 Aug 1994
  3. Greater/Lesser Scaup Aythya marila/affinis
    Last observed by Irby Lovette on 6 Feb 2021
  4. scoter sp. Melanitta sp.
    Last observed by Ken Elkins on 23 Feb 2007
  5. duck sp. Anatidae (duck sp.)
    Last observed by Christopher Soriano on 24 Sep 2023
  6. Horned/Eared Grebe Podiceps auritus/nigricollis
    Last observed by Julie Allen on 21 Mar 2021
  7. Western/Clark's Grebe Aechmophorus occidentalis/clarkii
    Last observed by Samantha Hagler on 19 Apr 2022
  8. Rufous/Allen's Hummingbird Selasphorus rufus/sasin
    Last observed by Bruce Barnhart on 29 Apr 2018
  9. hummingbird sp. Trochilidae sp.
    Last observed by stephen johnson 🦜 on 23 May 2016
  10. Short-billed/Long-billed Dowitcher Limnodromus griseus/scolopaceus
    Last observed by Edward Rooks on 29 Jul 2022
  11. phalarope sp. Phalaropus sp.
    Last observed by Emily Angell on 15 Sep 2016
  12. Lesser/Greater Yellowlegs Tringa flavipes/melanoleuca
    Last observed by Joyce Smith on 12 Nov 2021
  13. peep sp. Calidris sp. (peep sp.)
    Last observed by Oliver Patrick on 20 Mar 2024
  14. shorebird sp. Charadriiformes sp.
    Last observed by Liam Waters on 7 Aug 2021
  15. Larus sp. Larus sp.
    Last observed by Long-eared Owl on 19 Jan 2020
  16. gull sp. Larinae sp.
    Last observed by Christopher Soriano on 24 Sep 2023
  17. Sterna sp. Sterna sp.
    Last observed by Heidi Krajewsky on 23 Sep 2009
  18. tern sp. Sterninae sp.
    Last observed by Samantha Hagler on 19 Apr 2022
  19. loon sp. Gavia sp.
    Last observed by Anonymous eBirder on 13 Jan 2017
  20. cormorant sp. Phalacrocoracidae sp.
    Last observed by Joyce Smith on 12 Nov 2021
  21. Sharp-shinned/Cooper's Hawk Accipiter striatus/cooperii
    Last observed by Jasper Cormier on 22 Jul 2019
  22. Accipiter sp. Accipiter sp.
    Last observed by Ross Todd on 25 Aug 2012
  23. Buteo sp. Buteo sp.
    Last observed by Keenan Lorenzato on 29 Sep 2018
  24. hawk sp. Accipitridae sp. (hawk sp.)
    Last observed by Elaine Hammond on 3 Mar 2024
  25. falcon sp. Falco sp.
    Last observed by Liam Waters on 7 Aug 2021
  26. swallow sp. Hirundinidae sp.
    Last observed by Maggie Brown on 30 Jul 2023
  27. new world goldfinch sp. Spinus sp. (goldfinch sp.)
    Last observed by Ben Abramovitz on 1 Sep 2018
  28. new world sparrow sp. Passerellidae sp.
    Last observed by Christopher Soriano on 24 Sep 2023
  29. Red-winged/Tricolored Blackbird Agelaius phoeniceus/tricolor
    Last observed by Maggie Brown on 30 Jul 2023
  30. blackbird sp. Icteridae sp.
    Last observed by Jason Vassallo on 9 Nov 2019
  31. new world warbler sp. Parulidae sp.
    Last observed by Pedro Jordano on 19 Oct 2017