Humpback whales feeding off the Oregon coast are part of the same population that migrates between summer feeding grounds here and winter breeding waters off Mexico and Central America, and records around the offshore rocks of the Oregon Islands National Wildlife Refuge Wilderness Area, 27 of the state’s 69, trace that seasonal presence rather than a year-round resident group.
Records build through summer to a peak from July through September, when whales concentrate inshore to feed on schooling fish and krill before heading south. Winter and early spring records drop to almost nothing, a genuine seasonal absence tied to migration rather than a gap in observer coverage. NatureServe lists the species SNA, not applicable, in Oregon, reflecting its status as a migratory visitor rather than a year-round resident with a formal state rank.
Full species profile
