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San Luis Obispo
Illustrated Checklist
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Native and Naturalized (472)
Exotic: Provisional (1)
Exotic: Escapee (14)
Hybrids (20)
- Snow x Ross's Goose (hybrid) Anser caerulescens x rossiiLast observed by Pair of Wing-Nuts on 8 Jan 2023
- Graylag x Canada Goose (hybrid) Anser anser x Branta canadensisLast observed by Dale Ball on 21 Sep 2023
- Domestic goose sp. x Canada Goose (hybrid) Anser sp. (Domestic type) x Branta canadensisLast observed by Nick & Jane on 3 Feb 2024
- Blue-winged x Cinnamon Teal (hybrid) Spatula discors x cyanopteraLast observed by Jim Royer on 25 Mar 2024
- Blue-winged Teal x Northern Shoveler (hybrid) Spatula discors x clypeataLast observed by Ann Vaughan on 9 Apr 2019
- Muscovy Duck x Mallard (hybrid) Cairina moschata x Anas platyrhynchosLast observed by Ann Stockert on 26 Apr 2024
- Mallard x Northern Pintail (hybrid) Anas platyrhynchos x acutaLast observed by Curtis Marantz on 16 Jan 2011
- Western x Clark's Grebe (hybrid) Aechmophorus occidentalis x clarkiiLast observed by Ben Kolstad on 9 Mar 2024
- Anna's x Allen's Hummingbird (hybrid) Calypte anna x Selasphorus sasinLast observed by Herb Elliott on 7 May 2023
- Herring x Glaucous Gull (hybrid) Larus argentatus x hyperboreusLast observed by Tom Edell on 23 Feb 2020
- Western x Glaucous-winged Gull (hybrid) Larus occidentalis x glaucescensLast observed by Ann Stockert on 17 Apr 2024
- Herring x Glaucous-winged Gull (hybrid) Larus argentatus x glaucescensLast observed by Tom Edell on 19 Feb 2024
- Glaucous x Glaucous-winged Gull (hybrid) Larus hyperboreus x glaucescensLast observed by Aidan Brubaker on 4 Apr 2021
- Red-naped x Red-breasted Sapsucker (hybrid) Sphyrapicus nuchalis x ruberLast observed by Doug Drynan on 12 Feb 2023
- Dark-eyed Junco x White-crowned Sparrow (hybrid) Junco hyemalis x Zonotrichia leucophrysLast observed by Carol Comeau on 9 Feb 2023
- White-crowned x Golden-crowned Sparrow (hybrid) Zonotrichia leucophrys x atricapillaLast observed by Gjon Hazard on 19 Jan 2024
- Golden-crowned x White-throated Sparrow (hybrid) Zonotrichia atricapilla x albicollisLast observed by Rosie Howard on 15 Jan 2023
- Yellow-rumped x Townsend's Warbler (hybrid) Setophaga coronata x townsendiLast observed by Tom Edell on 8 Nov 1986
- Townsend's x Hermit Warbler (hybrid) Setophaga townsendi x occidentalisLast observed by Jeanette Stone on 24 Feb 2024
Additional Taxa (146)
- Domestic goose sp. (Domestic type) Anser sp. (Domestic type)Last observed by Julie Foster on 21 Apr 2024
- Common/Red-breasted Merganser Mergus merganser/serratorLast observed by Ann Stockert on 26 Apr 2024
- Eurasian/African Collared-Dove Streptopelia decaocto/roseogriseaLast observed by Nick Ramsey on 27 Mar 2019
- American/Pacific Golden-Plover (Lesser Golden-Plover) Pluvialis dominica/fulvaLast observed by Van Pierszalowski on 7 Oct 2023
- Short-billed/Long-billed Dowitcher Limnodromus griseus/scolopaceusLast observed by Zane Warsen on 4 May 2024
- Lesser/Greater Yellowlegs Tringa flavipes/melanoleucaLast observed by Roland Stuckey on 20 Apr 2024
- large shorebird sp. Scolopacidae sp. (large shorebird sp.)Last observed by Charlie Keller on 22 Apr 2024
- Long-tailed/Parasitic Jaeger Stercorarius longicaudus/parasiticusLast observed by Alvaro Jaramillo on 1 Oct 2023
- Parasitic/Pomarine Jaeger Stercorarius parasiticus/pomarinusLast observed by Alvaro Jaramillo on 1 Oct 2023
- Scripps's/Guadalupe/Craveri's Murrelet Synthliboramphus scrippsi/hypoleucus/craveriLast observed by Charlie Wright on 1 Aug 2021
- Leach's/Townsend's Storm-Petrel Hydrobates leucorhous/socorroensisLast observed by Victor Stoll on 12 Oct 2022
- Leach's/Townsend's Storm-Petrel (dark-rumped) Hydrobates leucorhous/socorroensis (dark-rumped)Last observed by Don Roberson on 24 May 1994
- storm-petrel sp. (dark-rumped) Oceanitidae/Hydrobatidae sp. (dark-rumped)Last observed by Alvaro Jaramillo on 21 Jul 2022
- storm-petrel sp. (white-rumped) Oceanitidae/Hydrobatidae sp. (white-rumped)Last observed by Jay Withgott on 22 Sep 2015
- Galapagos/Hawaiian Petrel (Dark-rumped Petrel) Pterodroma phaeopygia/sandwichensisLast observed by Paul Lehman on 28 Apr 2015
- Sooty/Short-tailed Shearwater Ardenna grisea/tenuirostrisLast observed by Dave Slager on 27 Apr 2023
- black-and-white shearwater sp. Puffinus sp. (black-and-white shearwater sp.)Last observed by The Kingbirder on 17 Jan 2022
- shearwater sp. Procellariidae sp. (shearwater sp.)Last observed by samara kaplan-zenk on 2 May 2024
- Sharp-shinned/Cooper's Hawk Accipiter striatus/cooperiiLast observed by Steve Lombardi on 6 May 2024
- Golden/Bald Eagle Aquila chrysaetos/Haliaeetus leucocephalusLast observed by Carol Comeau on 19 Jun 2023
- Yellow-bellied/Red-naped Sapsucker Sphyrapicus varius/nuchalisLast observed by Ann Vaughan on 18 Oct 2022
- diurnal raptor sp. Accipitriformes/Falconiformes sp.Last observed by Elizabeth Brewer Chouinard on 17 Feb 2022
- Western/Eastern Wood-Pewee Contopus sordidulus/virensLast observed by The Kingbirder on 17 Sep 2022
- Hammond's/Dusky Flycatcher Empidonax hammondii/oberholseriLast observed by Ann Stockert on 19 Apr 2024
- yellow-bellied kingbird sp. Tyrannus sp. (yellow-bellied)Last observed by Tracy Drake on 29 Mar 2024
- Philadelphia/Warbling Vireo Vireo philadelphicus/gilvusLast observed by Curtis Marantz on 13 Sep 2012
- Tree/Violet-green Swallow Tachycineta bicolor/thalassinaLast observed by Michael Mulroy on 26 Mar 2022
- Arctic/Kamchatka Leaf Warbler Phylloscopus borealis/examinandusLast observed by Curtis Marantz on 19 Sep 2017
- Sagebrush/Bell's Sparrow (Sage Sparrow) Artemisiospiza nevadensis/belliLast observed by Michael Gerbutavicius on 7 Jan 2024
- Red-winged/Tricolored Blackbird Agelaius phoeniceus/tricolorLast observed by Ken Ward on 21 Apr 2024
- Louisiana/Northern Waterthrush Parkesia motacilla/noveboracensisLast observed by Pair of Wing-Nuts on 20 Sep 2023
- MacGillivray's/Mourning Warbler Geothlypis tolmiei/philadelphiaLast observed by Maggie Smith on 23 Jun 2012
- Bay-breasted/Blackpoll Warbler Setophaga castanea/striataLast observed by Curtis Marantz on 13 Sep 2013
- Townsend's/Hermit Warbler Setophaga townsendi/occidentalisLast observed by Curtis Marantz on 8 May 2013
- Rose-breasted/Black-headed Grosbeak Pheucticus ludovicianus/melanocephalusLast observed by Curtis Marantz on 2 Oct 2023