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Sauvie Island--Willow Bar (Columbia Co.)
Illustrated Checklist
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Native and Naturalized (152)
Hybrids (1)
- Western x Glaucous-winged Gull (hybrid) Larus occidentalis x glaucescensLast observed by Jeff Hayes on 29 Oct 2023
Additional Taxa (18)
- Western/Glaucous-winged Gull Larus occidentalis/glaucescensLast observed by Tom Myers on 27 Nov 2020