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San Joaquin
Illustrated Checklist
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Native and Naturalized (359)
Exotic: Provisional (2)
Exotic: Escapee (19)
Hybrids (26)
- Graylag x Swan Goose (hybrid) Anser anser x cygnoidesLast observed by Anonymous eBirder on 16 Dec 2023
- Snow x Greater White-fronted Goose (hybrid) Anser caerulescens x albifronsLast observed by Howard Friedman on 18 Dec 2021
- Greater White-fronted x Cackling Goose (hybrid) Anser albifrons x Branta hutchinsiiLast observed by Noah Arthur on 20 Feb 2022
- Swan Goose x Canada Goose (hybrid) Anser cygnoides x Branta canadensisLast observed by Kurt Mize on 9 Apr 2024
- Greater White-fronted x Canada Goose (hybrid) Anser albifrons x Branta canadensisLast observed by Patti Deluca on 25 Jan 2022
- Graylag x Canada Goose (hybrid) Anser anser x Branta canadensisLast observed by Donna Marciano on 22 Apr 2024
- Domestic goose sp. x Canada Goose (hybrid) Anser sp. (Domestic type) x Branta canadensisLast observed by Ralph Baker on 15 Sep 2023
- Blue-winged Teal x Northern Shoveler (hybrid) Spatula discors x clypeataLast observed by Dorian Anderson on 17 Apr 2021
- Cinnamon Teal x Northern Shoveler (hybrid) Spatula cyanoptera x clypeataLast observed by Bruce Mast on 10 Mar 2024
- Eurasian x American Wigeon (hybrid) Mareca penelope x americanaLast observed by Rene Reyes on 26 Mar 2023
- Muscovy Duck x Mallard (hybrid) Cairina moschata x Anas platyrhynchosLast observed by Kramer Klabau on 10 Jan 2024
- American Wigeon x Mallard (hybrid) Mareca americana x Anas platyrhynchosLast observed by Jim Rowoth on 17 Dec 2016
- Redhead x Ring-necked Duck (hybrid) Aythya americana x collarisLast observed by Jim Rowoth on 11 Nov 2016
- Bufflehead x Common Goldeneye (hybrid) Bucephala albeola x clangulaLast observed by Jim Rowoth on 13 Jan 1996
- Common x Barrow's Goldeneye (hybrid) Bucephala clangula x islandicaLast observed by David Yee on 22 Nov 2021
- Herring x Glaucous Gull (hybrid) Larus argentatus x hyperboreusLast observed by Konshau Duman on 16 Feb 2021
- Western x Glaucous-winged Gull (hybrid) Larus occidentalis x glaucescensLast observed by Rene Reyes on 8 Nov 2023
- Herring x Glaucous-winged Gull (hybrid) Larus argentatus x glaucescensLast observed by Rene Reyes on 9 Feb 2024
- Glaucous x Glaucous-winged Gull (hybrid) Larus hyperboreus x glaucescensLast observed by Noah Arthur on 11 Mar 2020
- Glossy x White-faced Ibis (hybrid) Plegadis falcinellus x chihiLast observed by Noah Arthur on 17 Apr 2022
- Red-naped x Red-breasted Sapsucker (hybrid) Sphyrapicus nuchalis x ruberLast observed by David Yee on 31 Oct 2022
- Downy x Nuttall's Woodpecker (hybrid) Dryobates pubescens x nuttalliiLast observed by Elizabeth Olin on 25 Dec 2023
- White-crowned x White-throated Sparrow (hybrid) Zonotrichia leucophrys x albicollisLast observed by Jim Rowoth on 6 Oct 2016
- Bullock's x Baltimore Oriole (hybrid) Icterus bullockii x galbulaLast observed by David Yee on 25 May 2016
- Townsend's x Hermit Warbler (hybrid) Setophaga townsendi x occidentalisLast observed by John Sterling on 21 May 2018
- Lazuli x Indigo Bunting (hybrid) Passerina amoena x cyaneaLast observed by SJ RECORDS on 4 Sep 2017
Additional Taxa (82)
- Domestic goose sp. (Domestic type) Anser sp. (Domestic type)Last observed by Anonymous eBirder on 27 Apr 2024
- Trumpeter/Tundra Swan Cygnus buccinator/columbianusLast observed by Lucas Corneliussen on 13 Feb 2021
- Western/Clark's Grebe Aechmophorus occidentalis/clarkiiLast observed by Eric Schroeder on 11 Feb 2024
- American/Pacific Golden-Plover (Lesser Golden-Plover) Pluvialis dominica/fulvaLast observed by Richard Erickson on 6 Nov 1980
- Common Ringed/Semipalmated Plover Charadrius hiaticula/semipalmatusLast observed by David Yee on 27 Sep 2022
- Short-billed/Long-billed Dowitcher Limnodromus griseus/scolopaceusLast observed by George Griffeth on 15 Jan 2024
- large shorebird sp. Scolopacidae sp. (large shorebird sp.)Last observed by Erik Atwell on 2 Aug 2021
- Yellow-crowned/Black-crowned Night Heron Nycticorax nycticorax/Nyctanassa violaceaLast observed by David Yee on 29 Jul 2019
- Sharp-shinned/Cooper's Hawk Accipiter striatus/cooperiiLast observed by Konshau Duman on 6 Jan 2022
- Alder/Willow Flycatcher (Traill's Flycatcher) Empidonax alnorum/trailliiLast observed by David Yee on 24 May 2020
- Hammond's/Dusky Flycatcher Empidonax hammondii/oberholseriLast observed by jim blankenship on 1 May 2023
- Cassin's/Western Kingbird Tyrannus vociferans/verticalisLast observed by Ralph Baker on 28 Jul 2023
- Oak/Juniper Titmouse (Plain Titmouse) Baeolophus inornatus/ridgwayiLast observed by David Yee on 29 Nov 2023
- Tree/Violet-green Swallow Tachycineta bicolor/thalassinaLast observed by Manjit Dhillon on 6 Apr 2024
- Red-winged/Tricolored Blackbird Agelaius phoeniceus/tricolorLast observed by Curtis Marantz on 23 Feb 2019
- MacGillivray's/Mourning Warbler Geothlypis tolmiei/philadelphiaLast observed by kasey foley on 15 Jan 2018
- Rose-breasted/Black-headed Grosbeak Pheucticus ludovicianus/melanocephalusLast observed by David Yee on 18 Jun 2023