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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--Estrada & North marsh and/or Kirby Park

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Illustrated Checklist

 Powered by Macaulay Library and eBird
Updated ~7 minutes ago

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220 Species Observed
Species w/ Photos
Species w/ Audio
Species Needing Photos
Species Needing Audio
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Native and Naturalized (220)

  1. Last observed by Karen Kreiger on 6 Jan 2022
  2. Last observed by Kent Van Vuren on 10 Dec 2021
  3. Last observed by Kent Van Vuren on 10 Dec 2021
  4. Last observed by James Burrow on 24 Sep 2009
  5. Last observed by Tammy Thompson on 14 Oct 2023
  6. Last observed by Conor Wuertz on 25 Apr 2024
  7. Last observed by Kent Van Vuren on 13 Nov 2021
  8. Last observed by Jeanne Pratt on 24 Apr 2024
  9. Last observed by Jeanne Pratt on 24 Apr 2024
  10. Last observed by Brian Sullivan on 20 Apr 2024
  11. Last observed by Amanda Preece on 25 Apr 2024
  12. Last observed by Karen Kreiger on 1 Feb 2024
  13. Last observed by David Nickerson on 16 Mar 2024
  14. Last observed by Conor Wuertz on 25 Apr 2024
  15. Last observed by Brian Sullivan on 20 Apr 2024
  16. Last observed by David Nickerson on 16 Mar 2024
  17. Last observed by Karen Kreiger on 1 Feb 2024
  18. Last observed by Russ Namitz on 16 Mar 2024
  19. Last observed by Jaclyn Tolchin on 12 Jan 2024
  20. Last observed by Francis Toldi on 16 Mar 2024
  21. Last observed by Richie Frerking on 18 Mar 2024
  22. Last observed by Sam Phillips on 16 Jan 2024
  23. Last observed by kent johnson on 10 Feb 2023
  24. Last observed by Joan Tisdale on 19 Mar 2024
  25. Last observed by David Nickerson on 16 Mar 2024
  26. Last observed by Joan Tisdale on 19 Mar 2024
  27. Last observed by Amanda Preece on 25 Apr 2024
  28. Last observed by Brian Sullivan on 20 Apr 2024
  29. Last observed by Brian Sullivan on 20 Apr 2024
  30. Last observed by Rob Wade on 24 Feb 2024
  31. Last observed by Russ Namitz on 16 Mar 2024
  32. Last observed by Russ Namitz on 16 Mar 2024
  33. Last observed by Travis B. Poitras on 25 Jan 2024
  34. Last observed by Brian Sullivan on 20 Apr 2024
  35. Last observed by Amanda Preece on 25 Apr 2024
  36. Last observed by Amanda Preece on 25 Apr 2024
  37. Last observed by Gene Revelas on 14 Apr 2024
  38. Last observed by Kent Van Vuren on 29 Aug 2022
  39. Last observed by Brian Sullivan on 20 Apr 2024
  40. Last observed by Brian Sullivan on 20 Apr 2024
  41. Last observed by Kent Van Vuren on 14 May 2022
  42. Last observed by Conor Wuertz on 25 Apr 2024
  43. Last observed by Karen Kreiger on 14 Apr 2022
  44. Last observed by Brian Sullivan on 20 Apr 2024
  45. Last observed by Steve Gerow on 21 Aug 1971
  46. Last observed by Allan Ridley on 18 Mar 2015
  47. Last observed by Blake Matheson on 8 Mar 2017
  48. Last observed by Elkhorn Slough Reserve on 24 Apr 1998
  49. Last observed by Brian Sullivan on 20 Apr 2024
  50. Last observed by Bryan Mori on 12 Dec 2022
  51. Last observed by Brian Sullivan on 20 Apr 2024
  52. Last observed by Tom Hambleton on 21 Mar 2024
  53. Last observed by Carole Rose on 23 Feb 2022
  54. Last observed by kent johnson on 14 Apr 2024
  55. Last observed by Bill Hubick on 22 Feb 2024
  56. Last observed by Conor Wuertz on 25 Apr 2024
  57. Last observed by Brian Sullivan on 20 Apr 2024
  58. Last observed by Amanda Preece on 25 Apr 2024
  59. Last observed by Conor Wuertz on 25 Apr 2024
  60. Last observed by Amanda Preece on 25 Apr 2024
  61. Last observed by Brian Sullivan on 20 Apr 2024
  62. Last observed by Brian Sullivan on 20 Apr 2024
  63. Last observed by Bryan Runyan on 30 Mar 2023
  64. Last observed by Carole Rose on 8 Aug 2023
  65. Last observed by Kent Van Vuren on 28 Jan 2023
  66. Last observed by Joan Tisdale on 14 Oct 2023
  67. Last observed by Nicholas Sundeen on 26 Feb 2024
  68. Last observed by Brian Sullivan on 20 Apr 2024
  69. Last observed by Amanda Preece on 25 Apr 2024
  70. Last observed by Brian Sullivan on 20 Apr 2024
  71. Last observed by Tammy Thompson on 14 Oct 2023
  72. Last observed by Michael Moss on 28 Jan 2024
  73. Last observed by Bill Hubick on 6 Jan 2022
  74. Last observed by Fontaine Foxworth on 7 Jan 2024
  75. Last observed by Brian Sullivan on 20 Apr 2024
  76. Last observed by Alex Lamoreaux on 7 Sep 2022
  77. Last observed by Amanda Preece on 25 Apr 2024
  78. Last observed by Kevin Thompson on 6 Oct 2023
  79. Last observed by Brian Sullivan on 20 Apr 2024
  80. Last observed by Bill Yeates on 17 Aug 2022
  81. Last observed by Teresa Stallings on 3 Jul 2023
  82. Last observed by Howard Youth on 5 Feb 2024
  83. Last observed by Brian Sullivan on 26 Jan 2024
  84. Last observed by Jennifer Weber on 30 Sep 2023
  85. Last observed by Gary Dial on 13 Feb 2024
  86. Last observed by Amanda Preece on 25 Apr 2024
  87. Last observed by Amanda Preece on 25 Apr 2024
  88. Last observed by Rob Wade on 24 Feb 2024
  89. Last observed by Brian Sullivan on 20 Apr 2024
  90. Last observed by Kyan Russell on 3 Feb 2024
  91. Last observed by Michael Moss on 28 Jan 2024
  92. Last observed by Jonathan Walton on 9 Aug 2015
  93. Last observed by Steve Tucker on 29 Aug 2022
  94. Last observed by Brian Sullivan on 20 Apr 2024
  95. Last observed by Kent Van Vuren on 5 Sep 2023
  96. Last observed by Amanda Preece on 25 Apr 2024
  97. Last observed by Kent Van Vuren on 14 Sep 2022
  98. Last observed by Glenn Seiler on 14 Oct 2023
  99. Last observed by David Nickerson on 16 Mar 2024
  100. Last observed by Daniel Hasegawa on 15 Jan 2024
  101. Last observed by Amanda Preece on 25 Apr 2024
  102. Last observed by Elkhorn Slough Reserve on 25 Apr 2004
  103. Last observed by Amanda Preece on 25 Apr 2024
  104. Last observed by Amanda Preece on 25 Apr 2024
  105. Last observed by Conor Wuertz on 25 Apr 2024
  106. Last observed by Nicholas Sundeen on 26 Feb 2024
  107. Last observed by Conor Wuertz on 25 Apr 2024
  108. Last observed by David Fickel on 28 Aug 2022
  109. Last observed by Amanda Preece on 25 Apr 2024
  110. Last observed by Blake Matheson on 11 Jan 2020
  111. Last observed by Cheryl Trine on 28 Jan 2020
  112. Last observed by Conor Wuertz on 25 Apr 2024
  113. Last observed by Amanda Preece on 25 Apr 2024
  114. Last observed by Jeanne Pratt on 23 Sep 2022
  115. Last observed by Amanda Preece on 25 Apr 2024
  116. Last observed by Aaron Gilkison on 20 Jul 2023
  117. Last observed by Francis Toldi on 16 Mar 2024
  118. Last observed by Alex Chen on 21 Mar 2021
  119. Last observed by Conor Wuertz on 25 Apr 2024
  120. Last observed by Nicholas Sundeen on 26 Feb 2024
  121. Last observed by Amanda Preece on 25 Apr 2024
  122. Last observed by Brooke Keeney on 7 May 2023
  123. Last observed by Brian Sullivan on 20 Apr 2024
  124. Last observed by Conor Wuertz on 25 Apr 2024
  125. Last observed by Kent Van Vuren on 2 Sep 2022
  126. Last observed by David Moring on 12 Mar 2024
  127. Last observed by Rick Fournier on 7 Jan 2018
  128. Last observed by Elkhorn Slough Reserve on 12 Nov 1996
  129. Last observed by Joan Tisdale on 19 Mar 2024
  130. Last observed by Frances Oliver on 8 Feb 2009
  131. Last observed by Joan Tisdale on 19 Mar 2024
  132. Last observed by Glenn Seiler on 13 Mar 2024
  133. Last observed by Brian Sullivan on 20 Apr 2024
  134. Last observed by Rita Carratello on 19 Jan 2024
  135. Last observed by Joan Tisdale on 19 Mar 2024
  136. Last observed by Peter J Dunn on 4 Sep 2014
  137. Last observed by Joan Tisdale on 19 Mar 2024
  138. Last observed by Nicholas Sundeen on 26 Feb 2024
  139. Last observed by Francis Toldi on 16 Mar 2024
  140. Last observed by Kent Van Vuren on 14 May 2022
  141. Last observed by Stéphane Lair on 27 Apr 2013
  142. Last observed by Kent Van Vuren on 10 Sep 2022
  143. Last observed by Brian Sullivan on 20 Apr 2024
  144. Last observed by Brian Sullivan on 20 Apr 2024
  145. Last observed by Gary Dial on 13 Feb 2024
  146. Last observed by Paul Fenwick on 20 Apr 2019
  147. Last observed by Joe Yuhas on 29 Apr 2019
  148. Last observed by Nicholas Sundeen on 26 Feb 2024
  149. Last observed by Kent Van Vuren on 3 Sep 2022
  150. Last observed by Travis B. Poitras on 25 Jan 2024
  151. Last observed by Brenda Wineman on 17 Mar 2024
  152. Last observed by Jeanne Pratt on 24 Apr 2024
  153. Last observed by Amanda Preece on 25 Apr 2024
  154. Last observed by Joan Tisdale on 19 Mar 2024
  155. Last observed by Joan Tisdale on 19 Mar 2024
  156. Last observed by Brian Sullivan on 20 Apr 2024
  157. Last observed by Brian Sullivan on 27 Apr 2019
  158. Last observed by Amanda Preece on 25 Apr 2024
  159. Last observed by Amanda Preece on 25 Apr 2024
  160. Last observed by Bjoern Rost on 26 Aug 2023
  161. Last observed by Brian Sullivan on 20 Apr 2024
  162. Last observed by Brian Sullivan on 20 Apr 2024
  163. Last observed by Brian Sullivan on 20 Apr 2024
  164. Last observed by Conor Wuertz on 25 Apr 2024
  165. Last observed by Nicholas Sundeen on 26 Feb 2024
  166. Last observed by Rob Wade on 24 Feb 2024
  167. Last observed by Bill Hubick on 22 Feb 2024
  168. Last observed by Bill Hubick on 1 Jan 2024
  169. Last observed by Kent Van Vuren on 21 Nov 2021
  170. Last observed by Steve Tucker on 7 Aug 2022
  171. Last observed by Rick Fournier on 1 Jan 2023
  172. Last observed by Kent Van Vuren on 24 Nov 2021
  173. Last observed by Brian Sullivan on 20 Apr 2024
  174. Last observed by Brian Sullivan on 20 Apr 2024
  175. Last observed by Brian Sullivan on 20 Apr 2024
  176. Last observed by Brian Sullivan on 20 Apr 2024
  177. Last observed by Brian Sullivan on 20 Apr 2024
  178. Last observed by Thomas Creel on 21 Dec 2023
  179. Last observed by Michael Rieser on 10 Jan 2015
  180. Last observed by Joan Tisdale on 30 Jun 2022
  181. Last observed by Joan Tisdale on 19 Mar 2024
  182. Last observed by Joan Tisdale on 19 Mar 2024
  183. Last observed by Cliff Halverson on 17 May 2023
  184. Last observed by Travis B. Poitras on 25 Jan 2024
  185. Last observed by Nicholas Sundeen on 26 Feb 2024
  186. Last observed by Amanda Preece on 25 Apr 2024
  187. Last observed by Tom Hambleton on 21 Mar 2024
  188. Last observed by Blake Matheson on 8 Mar 2017
  189. Last observed by Joan Tisdale on 19 Mar 2024
  190. Last observed by Paul Fenwick on 1 Jul 2018
  191. Last observed by Amanda Preece on 25 Apr 2024
  192. Last observed by Menashe Lichtenstein on 31 Jan 2023
  193. Last observed by Brian Sullivan on 20 Apr 2024
  194. Last observed by Joan Tisdale on 19 Mar 2024
  195. Last observed by Nicholas Sundeen on 26 Feb 2024
  196. Last observed by Cliff Halverson on 21 Feb 2015
  197. Last observed by Amanda Preece on 25 Apr 2024
  198. Last observed by Conor Wuertz on 25 Apr 2024
  199. Last observed by Jason Vassallo on 4 Feb 2023
  200. Last observed by Rita Carratello on 12 Feb 2024
  201. Last observed by Brian Sullivan on 20 Apr 2024
  202. Last observed by Brian Sullivan on 20 Apr 2024
  203. Last observed by Bill Holland on 3 Sep 2020
  204. Last observed by Michael Moss on 28 Jan 2024
  205. Last observed by Conor Wuertz on 25 Apr 2024
  206. Last observed by Adam Dudley on 29 Aug 2022
  207. Last observed by Amanda Preece on 25 Apr 2024
  208. Last observed by Conor Wuertz on 25 Apr 2024
  209. Last observed by Steve Tucker on 24 Oct 2023
  210. Last observed by Brian Sullivan on 20 Apr 2024
  211. Last observed by Brian Sullivan on 9 Sep 2017
  212. Last observed by Kent Van Vuren on 13 Jun 2022
  213. Last observed by Amanda Preece on 25 Apr 2024
  214. Last observed by Kent Van Vuren on 4 Sep 2022
  215. Last observed by Tom Hambleton on 21 Mar 2024
  216. Last observed by Nicholas Sundeen on 26 Feb 2024
  217. Last observed by Brian Sullivan on 20 Apr 2024
  218. Last observed by Brian Sullivan on 27 Apr 2017
  219. Last observed by Brian Sullivan on 20 Apr 2024
  220. Last observed by Jeerapa Sookgaew on 13 May 2023

Exotic: Escapee (1)

  1. Last observed by Robert Horn on 10 Mar 2019

Hybrids (4)

  1. Domestic goose sp. x Canada Goose (hybrid) Anser sp. (Domestic type) x Branta canadensis
    Last observed by sharon tolby on 21 Apr 2019
  2. Gadwall x Mallard (hybrid) Mareca strepera x Anas platyrhynchos
    Last observed by Sam Phillips on 1 Jan 2023
  3. Western x Glaucous-winged Gull (hybrid) Larus occidentalis x glaucescens
    Last observed by Paul Fenwick on 21 Nov 2021
  4. Herring x Glaucous-winged Gull (hybrid) Larus argentatus x glaucescens
    Last observed by Marty Freeland on 22 Jan 2022

Additional Taxa (37)

  1. Blue-winged/Cinnamon Teal Spatula discors/cyanoptera
    Last observed by Marty Freeland on 22 Jan 2022
  2. teal sp. Anatidae sp. (teal sp.)
    Last observed by Anonymous eBirder on 26 Oct 2021
  3. Greater/Lesser Scaup Aythya marila/affinis
    Last observed by David Nickerson on 16 Mar 2024
  4. Aythya sp. Aythya sp.
    Last observed by Blake Matheson on 5 Mar 2023
  5. merganser sp. Mergellus/Lophodytes/Mergus sp.
    Last observed by Kyan Russell on 23 Dec 2023
  6. duck sp. Anatidae (duck sp.)
    Last observed by Kyan Russell on 26 Jan 2024
  7. Horned/Eared Grebe Podiceps auritus/nigricollis
    Last observed by Danielle Bragg on 20 Mar 2022
  8. Western/Clark's Grebe Aechmophorus occidentalis/clarkii
    Last observed by Jeanne Pratt on 24 Apr 2024
  9. pigeon/dove sp. Columbidae sp.
    Last observed by Jaime Lee on 22 May 2022
  10. Rufous/Allen's Hummingbird Selasphorus rufus/sasin
    Last observed by Blake Matheson on 5 Mar 2023
  11. hummingbird sp. Trochilidae sp.
    Last observed by Aaron Gilkison on 20 Jul 2023
  12. American/Pacific Golden-Plover (Lesser Golden-Plover) Pluvialis dominica/fulva
    Last observed by Kent Van Vuren on 30 Jul 2022
  13. Black-bellied Plover/golden-plover sp. Pluvialis sp.
    Last observed by Sara Brockmueller on 15 Jan 2024
  14. Short-billed/Long-billed Dowitcher Limnodromus griseus/scolopaceus
    Last observed by Amanda Preece on 25 Apr 2024
  15. Red/Red-necked Phalarope Phalaropus fulicarius/lobatus
    Last observed by shirley murphy on 3 Sep 2021
  16. phalarope sp. Phalaropus sp.
    Last observed by Anonymous eBirder on 3 Sep 2023
  17. Lesser/Greater Yellowlegs Tringa flavipes/melanoleuca
    Last observed by Francis Toldi on 16 Mar 2024
  18. peep sp. Calidris sp. (peep sp.)
    Last observed by Jeanne Pratt on 24 Apr 2024
  19. large shorebird sp. Scolopacidae sp. (large shorebird sp.)
    Last observed by Jeanne Pratt on 24 Apr 2024
  20. shorebird sp. Charadriiformes sp.
    Last observed by Brian Sullivan on 20 Apr 2024
  21. Larus sp. Larus sp.
    Last observed by Jeanne Pratt on 24 Apr 2024
  22. gull sp. Larinae sp.
    Last observed by Phil Richardson on 13 Mar 2024
  23. Common/Arctic Tern Sterna hirundo/paradisaea
    Last observed by Dave Bengston on 29 Jun 2013
  24. Sterna sp. Sterna sp.
    Last observed by Jeanne Pratt on 24 Apr 2024
  25. tern sp. Sterninae sp.
    Last observed by Tom Hambleton on 21 Mar 2024
  26. loon sp. Gavia sp.
    Last observed by allen krabill on 29 Nov 2020
  27. cormorant sp. Phalacrocoracidae sp.
    Last observed by Tim Lister on 24 Mar 2024
  28. Sharp-shinned/Cooper's Hawk Accipiter striatus/cooperii
    Last observed by allen krabill on 29 Nov 2020
  29. Buteo sp. Buteo sp.
    Last observed by Anonymous eBirder on 21 Jan 2010
  30. Downy/Hairy Woodpecker Dryobates pubescens/villosus
    Last observed by Terence Degan on 10 Dec 2019
  31. woodpecker sp. Picidae sp.
    Last observed by Kyan Russell on 14 Feb 2024
  32. falcon sp. Falco sp.
    Last observed by Paul Fenwick on 8 Jan 2020
  33. swallow sp. Hirundinidae sp.
    Last observed by Aaron Gilkison on 20 Jul 2023
  34. wren sp. Troglodytidae sp.
    Last observed by Terence Degan on 11 Aug 2019
  35. new world sparrow sp. Passerellidae sp.
    Last observed by Jay McGowan on 3 Sep 2022
  36. Red-winged/Tricolored Blackbird Agelaius phoeniceus/tricolor
    Last observed by Seth Greene on 10 Sep 2022
  37. blackbird sp. Icteridae sp.
    Last observed by Kyan Russell on 3 Feb 2024