Department of Fisheries & Oceans Canada https://www.dfo-mpo.gc.ca/species-especes/profiles-profils/killerWhalesouth-PAC-NE-epaulardsud-eng.html
NOAA’s Protected Resources Division https://www.westcoast.fisheries.noaa.gov/protected_species/marine_mammals/killer_whale/
Washington Department of Fish & Wildlife https://wdfw.wa.gov/species-habitats/at-risk/species-recovery/orca
San Juan County Marine Resources Council https://www.sjcmrc.org/projects/southern-resident-killer-whales/
The Whale Museum https://whalemuseum.org/pages/whale-watch-information
Cetus Research & Conservation Society https://www.cetussociety.org/
