The lone Beluga whale in Puget Sound comes from the Arctic, according to NOAA. Using eDNA methods, researchers have linked the rare whale to the Beaufort sea population. The last local sighting was 1940, when a Beluga was spotted near the Tacoma Narrows. https://www.fisheries.noaa.gov/feature-story/genetic-analysis-shows-beluga-whale-puget-sound-likely-arrived-arctic-waters