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Alameda
Illustrated Checklist
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Native and Naturalized (403)
Exotic: Provisional (1)
Exotic: Escapee (36)
Hybrids (29)
- Greater White-fronted x Canada Goose (hybrid) Anser albifrons x Branta canadensisLast observed by Karen Kenney on 17 Feb 2021
- Graylag x Canada Goose (hybrid) Anser anser x Branta canadensisLast observed by Marty Lycan on 23 Feb 2023
- Domestic goose sp. x Canada Goose (hybrid) Anser sp. (Domestic type) x Branta canadensisLast observed by Gail West on 1 Apr 2024
- Barnacle x Canada Goose (hybrid) Branta leucopsis x canadensisLast observed by Alison Sheehey on 16 Feb 2013
- Blue-winged x Cinnamon Teal (hybrid) Spatula discors x cyanopteraLast observed by Alex Henry on 17 Jan 2024
- Blue-winged Teal x Northern Shoveler (hybrid) Spatula discors x clypeataLast observed by Alex Henry on 18 Apr 2024
- Cinnamon Teal x Northern Shoveler (hybrid) Spatula cyanoptera x clypeataLast observed by J Tanner on 14 Mar 2020
- Northern Shoveler x American Wigeon (hybrid) Spatula clypeata x Mareca americanaLast observed by Dean LaTray on 2 Jan 2021
- Eurasian x American Wigeon (hybrid) Mareca penelope x americanaLast observed by Rajan Rao on 24 Mar 2024
- Muscovy Duck x Mallard (hybrid) Cairina moschata x Anas platyrhynchosLast observed by Frank Fogarty on 20 Mar 2020
- Gadwall x Mallard (hybrid) Mareca strepera x Anas platyrhynchosLast observed by Mike Peters on 20 Nov 2023
- American Wigeon x Green-winged Teal (hybrid) Mareca americana x Anas creccaLast observed by Jeff Hoppes on 17 Mar 2024
- Ring-necked Duck x Lesser Scaup (hybrid) Aythya collaris x affinisLast observed by Alex Henry on 31 Jan 2024
- Ring-necked Duck x scaup sp. (hybrid) Aythya collaris x marila/affinisLast observed by Chris Elphick on 19 Feb 1992
- Common x Barrow's Goldeneye (hybrid) Bucephala clangula x islandicaLast observed by Bob Richmond on 23 Jan 2020
- Barrow's Goldeneye x Hooded Merganser (hybrid) Bucephala islandica x Lophodytes cucullatusLast observed by Jeff Hoppes on 7 Jan 2012
- Western x Clark's Grebe (hybrid) Aechmophorus occidentalis x clarkiiLast observed by Jack Hayden on 16 Jan 2023
- Anna's x Costa's Hummingbird (hybrid) Calypte anna x costaeLast observed by Richard Erickson on 25 Oct 1976
- Herring x Glaucous Gull (hybrid) Larus argentatus x hyperboreusLast observed by Noah Arthur on 5 Mar 2024
- Western x Glaucous-winged Gull (hybrid) Larus occidentalis x glaucescensLast observed by logan kahle on 3 Apr 2024
- Herring x Glaucous-winged Gull (hybrid) Larus argentatus x glaucescensLast observed by logan kahle on 3 Apr 2024
- Glaucous x Glaucous-winged Gull (hybrid) Larus hyperboreus x glaucescensLast observed by Bill Chen on 13 Feb 2024
- Yellow-bellied x Red-naped Sapsucker (hybrid) Sphyrapicus varius x nuchalisLast observed by Aaron Maizlish on 27 Mar 2017
- Red-naped x Red-breasted Sapsucker (hybrid) Sphyrapicus nuchalis x ruberLast observed by Tommy Hekl on 12 Feb 2023
- White-crowned x Golden-crowned Sparrow (hybrid) Zonotrichia leucophrys x atricapillaLast observed by Sam Talarigo on 9 Apr 2021
- Black-throated Gray x Hermit Warbler (hybrid) Setophaga nigrescens x occidentalisLast observed by Sam Zuckerman on 23 Apr 2023
- Townsend's x Hermit Warbler (hybrid) Setophaga townsendi x occidentalisLast observed by Michael Park on 4 Nov 2022
- Lazuli x Indigo Bunting (hybrid) Passerina amoena x cyaneaLast observed by Michael Karpinko on 10 Jun 2016
Additional Taxa (144)
- Domestic goose sp. (Domestic type) Anser sp. (Domestic type)Last observed by J Tanner on 21 Apr 2024
- Common/Barrow's Goldeneye Bucephala clangula/islandicaLast observed by Taylor Heaton Crisologo on 15 Mar 2024
- Common/Red-breasted Merganser Mergus merganser/serratorLast observed by Stephen Suttle on 17 Mar 2024
- American/Greater Flamingo Phoenicopterus ruber/roseusLast observed by Elizabeth Wommack on 14 Feb 2014
- American/Pacific Golden-Plover (Lesser Golden-Plover) Pluvialis dominica/fulvaLast observed by Nat Smale on 5 Aug 2023
- Short-billed/Long-billed Dowitcher Limnodromus griseus/scolopaceusLast observed by Kenneth Hillan on 22 Apr 2024
- Western/Semipalmated Sandpiper Calidris mauri/pusillaLast observed by Donald Pendleton on 1 Sep 2021
- large shorebird sp. Scolopacidae sp. (large shorebird sp.)Last observed by Morgane Martinet on 20 Apr 2024
- Parasitic/Pomarine Jaeger Stercorarius parasiticus/pomarinusLast observed by Lucas Corneliussen on 16 Oct 2023
- Laughing/Franklin's Gull Leucophaeus atricilla/pipixcanLast observed by Colin Meusel on 14 May 2016
- Golden/Bald Eagle Aquila chrysaetos/Haliaeetus leucocephalusLast observed by Rosemarie Richardson on 24 Apr 2019
- Yellow-bellied/Red-naped Sapsucker Sphyrapicus varius/nuchalisLast observed by Sharon J on 21 Dec 2020
- diurnal raptor sp. Accipitriformes/Falconiformes sp.Last observed by Sally Picciotto on 21 Apr 2024
- Alder/Willow Flycatcher (Traill's Flycatcher) Empidonax alnorum/trailliiLast observed by Noah Arthur on 30 Sep 2022
- Hammond's/Dusky Flycatcher Empidonax hammondii/oberholseriLast observed by Susan Greef on 27 Apr 2022
- Gray/Dusky Flycatcher Empidonax wrightii/oberholseriLast observed by Sunol Regional Wilderness Data on 6 Apr 1992
- Cassin's/Western Kingbird Tyrannus vociferans/verticalisLast observed by Stephen T Bird on 5 Apr 2022
- yellow-bellied kingbird sp. Tyrannus sp. (yellow-bellied)Last observed by Erica Rutherford/ John Colbert on 25 Feb 2024
- Tree/Violet-green Swallow Tachycineta bicolor/thalassinaLast observed by E C Winstead on 19 Apr 2024
- Ruby-crowned/Golden-crowned Kinglet Corthylio calendula/Regulus satrapaLast observed by Mark Dadds on 16 Mar 2024
- House/Purple Finch Haemorhous mexicanus/purpureusLast observed by Patricia Williamson on 28 Jan 2024
- Lincoln's/Swamp Sparrow Melospiza lincolnii/georgianaLast observed by Connor Cochrane on 3 Nov 2023
- Red-winged/Tricolored Blackbird Agelaius phoeniceus/tricolorLast observed by Sadie Cosby on 23 Mar 2024
- Townsend's/Hermit Warbler Setophaga townsendi/occidentalisLast observed by Ethan Monk on 29 Apr 2021
- Rose-breasted/Black-headed Grosbeak Pheucticus ludovicianus/melanocephalusLast observed by Russ Pettit on 15 Nov 2023