Guadalupe fur seals were hunted to near extinction by the late 1800s, reduced to what was thought to be a single surviving colony off Mexico’s Guadalupe Island, before slowly rebuilding and expanding their range north along the Pacific coast. Oregon’s 21 records, all logged along the coast near Oregon Dunes National Recreation Area, reflect that ongoing range expansion rather than a long-established local population.
Records cluster in a May through August window with a smaller January bump, likely tracking young or dispersing seals wandering north from breeding colonies farther south. Every one of Oregon’s records comes from iNaturalist, with no GBIF specimen data at all, consistent with a species that’s only recently become a regular, photographed visitor to the state’s coast.
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