
Killer Whale
Orcinus orca
Also known as: Orca, Grampus, Killer-Trasher, Swordfish, Sword Grampus
Habitat
Aquatic
Diet
VertFishScav
Active Time
Diurnal
Size
4300.0 kg
About This Species
Found in a wide range of marine environments from polar seas to tropical coastlines, these highly social cetaceans travel in tight family pods and can cover vast distances in a single day, often following seasonal prey migrations of fish, marine mammals, or seabirds. Although activity peaks during low-light hours, daytime sightings are common in productive coastal waters — scan for the unmistakable tall dorsal fin breaking the surface, listen for explosive blow sounds carrying several hundred metres, and watch for breaching, spy-hopping, or coordinated group surfacing patterns. Prime viewing opportunities occur in areas with predictable prey aggregations, such as salmon runs along the Pacific Northwest coast in late summer and autumn, or pinniped haul-outs in Patagonia and Norway, where calm sea conditions and early morning light offer the clearest sightlines.
Ethical Viewing Guidelines
- Maintain a minimum distance of 100–200 metres depending on jurisdiction, as many regions — including the United States (Marine Mammal Protection Act), Canada (Fisheries Act), and the United Kingdom (Wildlife and Countryside Act) — impose legally enforceable approach limits, with stricter rules applying to endangered populations such as Southern Resident killer whales off the Pacific Northwest coast.
- Use engine-off or slow, predictable vessel movements when individuals approach voluntarily, avoid positioning your vessel in their path of travel, and limit observation time to reduce cumulative disturbance to foraging, resting, and social behaviour.
- Underwater noise is a particular concern for this highly acoustically sensitive species, so minimise engine idling and never use active sonar or underwater sound devices in their vicinity.
Seasonal Activity
34,328 sightings · 2000–2026
Citizen science records via GBIF
Classification
- Kingdom
- Animalia
- Phylum
- Chordata
- Class
- Mammalia
- Order
- Cetacea
- Family
- Delphinidae
Traits
- Diet
- VertFishScav
- Foraging
- Aquatic
- Activity
- Diurnal
- Body mass
- 4300.0 kg
Photo
(c) Sherry Kirkvold, some rights reserved (CC BY-NC), uploaded by Sherry Kirkvold
CC-BY-NC-4.0
Occurrence data from GBIF.