Banff’s infamous grizzly ‘The Boss’ continues to dominate Bow Valley — but he’s got competition


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Jason Leo Bantle has witnessed Banff’s grizzly bear hierarchy firsthand.

He’s been documenting bear number 122, better known as The Boss, for a decade, during which he’s watched the famous grizzly bear firmly establish himself as the Bow Valley’s most infamous brute.

“My experience with The Boss in general, over these 10 years, has been of a bear that has become more comfortable with humans, more comfortable with its landscape and its abilities to navigate situations that are quite complex,” he said.

The Chief is believed to be in his mid-twenties, making him quite old by wild grizzly bear standards. It is estimated to weigh between 650 and 700 pounds.

The photo shows a grizzly bear feeding on berries.
Bear No. 122, or El Jefe, photographed feeding on berries in October 2025. (Jason Leo Bantle)

As far as Bow Valley Bears go, he has an impressive resume, including survive being hit by a train and closed a popular Banff trail when observed eating a black bear there.

“It has a territory of more than 2,500 square kilometers,” Bantle said. “This bear has a story and, well, he’s a grandfather now. Can you imagine? He could sit down with his grandchildren and have conversations that would be inspiring to all of us.”

But while The Boss is still at the top of the Bow Valley bear hierarchy, he has competition, largely in the form of bear no. 136.

“Split Lip is now in Chief’s territory,” Bantle said. “Seeing Split Lip two or three years ago was unusual.”

A brown bear.
Bear No. 136, or Split-Lipped, photographed feeding on berries in Banff National Park in October 2025. (Jason Leo Bantle)

Bantle remembers running into Split Lip last month, just a few days after seeing The Boss nearby. He said Split Lip sightings have occurred more frequently in the Bow Valley in recent years.

“I and other people are having a lot more experiences with Split Lip in areas where normally only The Boss was seen,” Bantle said.

“That’s indicative that Split Lip is moving into The Boss’ territory, and The Boss is having dominance fights with Split Lip, and those dominance fights are maybe now sometimes in Split Lip’s favor.”

SEE | Confrontation between The Boss and Split Lip caught on camera:

A battle between Banff’s biggest and baddest bears

It’s a wildlife photographer’s dream to see a showdown between two of Banff’s most famous grizzly bears (from a safe distance, of course!).

Bantle said the recent facial scars he saw on The Boss are a sign he’s been facing competition.

“Some of these other bears are taking risks, or they think they can beat The Boss and they’re willing to fight The Boss, and their defense isn’t as strong,” Bantle said.

A brown bear.
The Boss in October 2025. Photographer Jason Leo Bantle says the scars visible under the bear’s eye are recent. (Jason Leo Bantle)

If The Boss starts avoiding fights he feels he’s less likely to win and starts giving up territory, it could signal to the bears that he’s no longer the best choice for mating, Bantle said, and that would make it harder for him to remain Bow Valley’s top brute.

“And little by little he will stay in his territory, but he will not have all the luxuries that he has had up to this point, of being that dominant bear,” Bantle said.

Bears are still seen before hibernation

Bantle’s recent photographs of Split Lip in a snow-covered landscape are a reminder that some bears have not yet entered hibernation.

Nick de Ruyter, director of the BioSphere Institute’s WildSmart program, said that while it is hibernation season for most bears in the Bow Valley, some remain active and awake. well into the winter months.

A brown bear in the snow.
Split Lip breaks through the snow in Banff National Park in October 2025. (Jason Leo Bantle)

Bear activity this time of year depends on environmental factors, including weather, temperature, and food availability.

“Based on the good berry harvest we had this summer, I think many of the bears will return to their dens fat, happy and healthy,” de Ruyter said.

but while bear activity seems to have decreased, de Ruyter said carrying bear spray year-round is the best way for hikers and cross-country skiers to stay safe in case they encounter a bear or other predators like wolves, coyotes and mountain lions.



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