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Southeast Farallon Island (Farallon Islands NWR, restricted access)
Illustrated Checklist
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Native and Naturalized (438)
Exotic: Escapee (2)
Hybrids (9)
- Herring x Glaucous Gull (hybrid) Larus argentatus x hyperboreusLast observed by Farallon Island on 25 Nov 2016
- Western x Glaucous-winged Gull (hybrid) Larus occidentalis x glaucescensLast observed by Farallon Island on 17 Dec 2023
- Herring x Glaucous-winged Gull (hybrid) Larus argentatus x glaucescensLast observed by Farallon Island on 30 Mar 2024
- Glaucous x Glaucous-winged Gull (hybrid) Larus hyperboreus x glaucescensLast observed by Farallon Island on 24 Nov 2020
- Philadelphia x Red-eyed Vireo (hybrid) Vireo philadelphicus x olivaceusLast observed by Matt Brady on 9 Sep 2008
- Golden-winged x Blue-winged Warbler (hybrid) Vermivora chrysoptera x cyanopteraLast observed by Matt Brady on 17 Sep 2008
- American Redstart x Yellow Warbler (hybrid) Setophaga ruticilla x petechiaLast observed by Farallon Island on 5 Sep 2020
- Townsend's x Hermit Warbler (hybrid) Setophaga townsendi x occidentalisLast observed by Farallon Island on 17 Aug 2018
- Rose-breasted x Black-headed Grosbeak (hybrid) Pheucticus ludovicianus x melanocephalusLast observed by Paul Rodewald on 21 Oct 1988
Additional Taxa (65)
- Western/Clark's Grebe Aechmophorus occidentalis/clarkiiLast observed by Farallon Island on 9 Mar 2024
- American/Pacific Golden-Plover (Lesser Golden-Plover) Pluvialis dominica/fulvaLast observed by Farallon Island on 13 Dec 2021
- Black-bellied Plover/golden-plover sp. Pluvialis sp.Last observed by Corrine Folsom-O'Keefe on 23 Oct 2002
- Short-billed/Long-billed Dowitcher Limnodromus griseus/scolopaceusLast observed by Farallon Island on 19 Oct 2023
- Red/Red-necked Phalarope Phalaropus fulicarius/lobatusLast observed by Farallon Island on 31 May 2024
- Lesser/Greater Yellowlegs Tringa flavipes/melanoleucaLast observed by Farallon Island on 24 Jul 2020
- large shorebird sp. Scolopacidae sp. (large shorebird sp.)Last observed by Farallon Island on 8 Oct 2020
- Parasitic/Pomarine Jaeger Stercorarius parasiticus/pomarinusLast observed by Mackenzie Cahill on 23 Sep 2023
- Scripps's/Guadalupe Murrelet (Xantus's Murrelet) Synthliboramphus scrippsi/hypoleucusLast observed by Farallon Island on 15 Sep 2011
- Sooty/Short-tailed Shearwater Ardenna grisea/tenuirostrisLast observed by Farallon Island on 2 Dec 2023
- black-and-white shearwater sp. Puffinus sp. (black-and-white shearwater sp.)Last observed by Farallon Island on 24 Sep 2020
- Western/Eastern Wood-Pewee Contopus sordidulus/virensLast observed by Farallon Island on 13 Oct 2014
- Alder/Willow Flycatcher (Traill's Flycatcher) Empidonax alnorum/trailliiLast observed by Stella Solasz on 12 Jun 2023
- solitary vireo sp. Vireo cassinii/solitarius/plumbeusLast observed by Farallon Island on 7 May 2023
- Arctic/Kamchatka Leaf Warbler Phylloscopus borealis/examinandusLast observed by Farallon Island on 28 Sep 2012
- Sagebrush/Bell's Sparrow (Sage Sparrow) Artemisiospiza nevadensis/belliLast observed by Mark Dettling on 27 Oct 2007
- Bullock's/Baltimore Oriole Icterus bullockii/galbulaLast observed by Farallon Island on 17 Sep 1983