Harbour porpoises are among the smallest whales in the world, surfacing briefly and quietly rather than breaching or riding a boat’s wake, which makes them easy to miss even where they’re genuinely common. Records concentrate along the stretch of coast near Oregon Dunes National Recreation Area, where nearshore water gives a clear vantage on an animal that mostly stays close to shore.
Records peak sharply in July and August, more than ten times the January low, likely tracking porpoises following schooling fish closer to the Oregon coast during summer months. NatureServe lists the species SNA, not applicable, in Oregon rather than assigning a state rank, even though it carries a G4, apparently secure, global rank.
Full species profile
