Orca whales are found throughout the world.
Two types frequent the Salish Sea, including occasional sightings in Skagit County's marine waters.
Here, the Southern Resident orcas that eat salmon are endangered, while the Bigg's orcas, or transients, that eat mammals including seals are flourishing.
More information: fisheries.noaa.gov/species/killer-whale.
Humpback whales are found in most waters of the world.
Those that frequent Washington swaters, including a subset that spends time in the Salish Sea, are part of the growing North Pacific population.
Many populations are still considered depleted and recovering from commercial whaling.
More information: fisheries.noaa.gov/species/humpback-whale.
Gray whales are only found in the North Pacific.
The eastern Pacific population, which includes some whales that spend time in Washington state waters, was removed from the endangered species list in 1994 due to recovery.
More information: fisheries.noaa.gov/species/gray-whale.