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Adak Island--Sweeper Cove
Illustrated Checklist
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Native and Naturalized (81)
Hybrids (1)
- Herring x Glaucous Gull (hybrid) Larus argentatus x hyperboreusLast observed by Ben Lagasse on 4 Jan 2020
Additional Taxa (8)
- Sooty/Short-tailed Shearwater Ardenna grisea/tenuirostrisLast observed by Wyatt Egelhoff on 2 Aug 2021