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Offshore pelagic (South SON Co.)
Illustrated Checklist
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Native and Naturalized (102)
Hybrids (1)
- Western x Glaucous-winged Gull (hybrid) Larus occidentalis x glaucescensLast observed by Lisa Hug on 23 Sep 2018
Additional Taxa (12)
- Western/Clark's Grebe Aechmophorus occidentalis/clarkiiLast observed by Mark Stephenson on 25 Oct 2015
- Red/Red-necked Phalarope Phalaropus fulicarius/lobatusLast observed by Josiah MT Clark on 5 Oct 2023
- Parasitic/Pomarine Jaeger Stercorarius parasiticus/pomarinusLast observed by Eugene Hunn on 7 Oct 2018
- Scripps's/Guadalupe Murrelet (Xantus's Murrelet) Synthliboramphus scrippsi/hypoleucusLast observed by Tony Shrimpton on 2 Nov 1996
- Sooty/Short-tailed Shearwater Ardenna grisea/tenuirostrisLast observed by Eugene Hunn on 7 Oct 2018
- black-and-white shearwater sp. Puffinus sp. (black-and-white shearwater sp.)Last observed by Eugene Hunn on 7 Oct 2018