Whale watchers spotted a rarely seen orca known as ‘Chainsaw’ in the Haro Strait March 29. (Photo by April Ryan, Maya’s Legacy Whale Watching/PWWA)

Whale watchers spotted a rarely seen orca known as ‘Chainsaw’ in the Haro Strait March 29. (Photo by April Ryan, Maya’s Legacy Whale Watching/PWWA)

VIDEO: Rarely seen orca known as ‘Chainsaw’ spotted off Victoria’s coast

Chainsaw is known for his jagged dorsal fin

Whale watchers cruising through the Haro Strait on March 29 were lucky enough to spot a rarely seen male orca named Chainsaw who, with his jagged dorsal fin, is easily distinguishable from others.

Researchers don’t know for certain what put several notches in the top of his fin, but they guess the missing chunks could have been caused by a seal or sea lion preying on Chainsaw in his youth.

On Monday, Chainsaw was swimming north with a group of about 10 of the West Coast transients, commonly known as Bigg’s killer whales. The orcas, which are distinct from the Southern Residents due to their transient nature and appetite for larger prey, are named after the late Canadian scientist Michael Bigg. Bigg was the first to discover that orcas can be individually identified based off small physical differences, allowing scientists to study orcas’ social relationships and travel patterns.

READ ALSO: Rare white orca spotted hunting off shores of Alaska for first time

“It was a beautiful day on the water to watch whales,” said Sara McCullagh, captain of the Sea Lion, “and it’s always fun to see Chainsaw. He’s a bucket-list animal for a lot of us in the whale watching community.”

Chainsaw is believed to have been born in 1978 and, when spotted, is often with his mother Whidbey II. He has been reported to travel up the coast of Canada, as far as southeast Alaska where he is known as Zorro to whale researchers and naturalists.

Unlike Southern Resident orcas who are dying off due to a short supply of chinook salmon, Bigg’s orcas are increasing in numbers. There is an abundance of their preferred prey of seals and sea lions.

READ ALSO: UPDATED: Vancouver Island paddle boarder’s orca encounter brings joy and outrage


 

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