Banff National Park (Wikimedia Commons)

Banff National Park (Wikimedia Commons)

Death of mother grizzly a ‘big loss’ for bear population in Banff park: experts

The bear, known as No. 143, spent most of her time in the backcountry of Banff

Wildlife experts say the death of a mother grizzly bear and her two cubs — including a rare, blond-headed grizzly — in Banff National Park is a major loss to the population.

Parks Canada has said that an adult bear was struck and killed Sept. 3 by a Canadian Pacific Railway train on a rail line through the Alberta park.

“She was about 10 years old and had been known to Parks Canada,” Dwight Bourdin, resource conservation manager with the agency’s Lake Louise, Yoho and Kootenay field unit, said in an interview this week.

The bear, known as No. 143, spent most of her time in the backcountry of Banff and the adjacent Yoho and Kootenay national parks in British Columbia, Bourdin said.

She was spotted earlier this summer with two cubs, including the one with a blond head and brown body. But Bourdin said neither cub has been spotted since before the mother bear was killed.

“One has not been seen since early June and one was not seen since Aug. 15,” said Bourdin. “Both are believed to have perished prior to this incident.

“We’ve searched the area thoroughly. We continue to monitor the site. We have CP that will report any sightings.

“But we feel that the cubs did not survive.”

Parks Canada estimates on its website that there are 65 grizzly bears in Banff National Park.

Bourdin said the two cubs, which are believed to be No. 143’s second set as a mother, were likely killed by a large male grizzly or another predator in the park. It’s not known whether her cubs from 2018 survived, he said.

The portion of the track where the mother bear’s death happened is between Castle Junction and Lake Louise and between the Bow River and a steep embankment.

“There were no grain spills on site and no carcasses on site that would have drawn her to that location,” said Bourdin. “We believe she was using it as a travel route.”

Officials said an investigation showed there were also strong winds and flowing water at the location so the bear may not have heard the train.

Colleen Cassady St. Clair, a professor of biological sciences at the University of Alberta, led a five-year research project in Banff National Park to find out why so many grizzly bears were dying on the tracks.

It noted that at least 17 bears died between 2000 and 2017.

Cassady St. Clair said the location of the latest death holds many of the same characteristics that she and her team found pose a risk to bears.

“Mortalities occurred in the past more frequently where trains were travelling faster, where the track was close to water … and where there was a curvature in the track,” she said.

“It’s attractive for bears to travel on the tracks under those circumstances … and it’s hard to get off of the track quickly.”

A paper published the day before the bear strike by one of her team members, Jonathan Backs, showed a warning system with flashing lights and bells could help reduce animal deaths because they would be alerted to oncoming trains and get off the tracks earlier.

Cassady St. Clair said the death of No. 143, one of the bears in the research study, is disappointing.

“She’s exactly the kind of bear that everyone wants to keep in the population,” she said. “She was a well-behaved backcountry bear, a young mother.

“It is a big loss for the population.”

Bourdin said it’s “definitely concerning” to lose a female bear, but that’s why Parks Canada continues to do mitigation work around the tracks to prevent more deaths.

“The research showed there was no single solution, no silver bullet, to the situations there,” he said. “I think it’s a matter of continuing to learn, continuing to do prescribed fire and habitat improvements for the species.”

A statement from CP didn’t address the death, but said it continues to work with Banff National Park to try to reduce the number of grizzly deaths along the tracks.

Colette Derworiz, The Canadian Press

Get local stories you won't find anywhere else right to your inbox.
Sign up here

Just Posted

Firefighters battled a wildfire on Mount Woodside near Harrison Mills on Wednesday, April 14. Seabird Island and B.C. Wildfire Service firefighters helped keep the blaze from spreading to brush, keeping it to roughly half a hectare. (Photo/Agassiz Fire Department)
Agassiz, Seabird Island firefighters contain Mt. Woodside wildfire

Half-hectare fire among the first wildfires of the year

Structural firefighter Ken Barwich sits on a mountain overlooking Hope and the Fraser River, in a new safety video that promotes the simple steps to take around your yard and home to protect it from forest fires. (Screenshot)
VIDEO: Hope featured in B.C. fire safety video for homeowners

Simple steps can protect a home from being lost in a forest fire, says B.C. FireSmart

Clay Helkenberg was all smiles after bringing up a gun and box of ammo from the bottom of Chilliwack Lake. (Instagram photo)
Chilliwack diver finds handgun and ammunition on the bottom of Chilliwack Lake

Clay Helkenberg has long had a gun on his want-to-find list, and finally checked it off

Cannabis plants visible under bright lights inside a large facility at Shxwha:y Village on July 6, 2018. The reserve was home to the licensed producer for Indigenous Bloom, which opened up a dispensary on the Kwaw-Kwaw-Apilt reserve. On April 12, 2021, Shxwha:y announced Health Canada approval for a licensed production facility at the village. (Paul Henderson/ Chilliwack Progress file)
Chilliwack’s Shxwha:y First Nation approved for cannabis cultivation and processing facility

It will be the first majority-owned Indigenous on-reserve licensed facility in Western Canada

Vancouver police say eight people were arrested Wednesday after anti-pipeline protesters blocked off both the entrances and exits to two buildings in the downtown core. (Instagram/Qtcatspictureclub)
8 people arrested after anti-pipeline protestors chain themselves to Vancouver buildings

Cst. Tania Visintin said demonstrators caused ‘a serious safety hazard’ downtown for hours Wednesday

Jamie Coutts recorded a man following her around downtown Vancouver for a half-hour on Wednesday, March 18. (Instagram screenshot/Iammjammbamm)
Man charged in alleged high-profile Vancouver stalking case that went viral online

Man faces five other charges including criminal harassment and assault with a weapon

Police barricade (File photo: Tom Zytaruk)
Surrey RCMP investigate shooting overnight at Whalley motel

Sergeant Elenore Sturko said a 38-year-old man was taken to hospital suffering from a serious injury

A new Lower Mainland study will examine feline COVID-19 transmission using data gathered from up to 40 cats living with newly infected adults. (Pixabay)
CDC conducting mobile kitty COVID tests outside of Lower Mainland homes

Researchers are probing whether humans can transmit the coronavirus to household pets

A sea lion swims past the window of an empty viewing area Vancouver Aquarium is pictured Thursday, September 10, 2020. The Vancouver Aquarium has had to close its doors to the public due to the lack of visitors during the COVID-19 pandemic. THE CANADIAN PRESS/Jonathan Hayward
U.S.-based theme park company buys Vancouver Aquarium

Aquarium had to shut its doors in September due to COVID pandemic

A man wears a protective face covering to help prevent the spread of COVID-19 as he walks past the emergency entrance of Vancouver General Hospital in Vancouver, B.C., Friday, April 9, 2021. THE CANADIAN PRESS/Jonathan Hayward
COVID-19 spike in B.C. could overwhelm B.C. hospitals: modelling group

There are 397 people are in hospital due to the virus, surpassing a previous high of 374 seen in December

A deep cut on a humpback whale is shown in this recent handout photo in the Vancouver area. A conservation organization is warning boaters to be extra careful to prevent further harm to an injured humpback whale swimming in the Vancouver area. THE CANADIAN PRESS/HO, Ocean Wise, Vanessa Prigollini *MANDATORY CREDIT*
Boaters urged to use caution around hurt humpback off Vancouver

Ocean Wise says watchers first noticed the wound 3 days ago and believe it was caused by a vessel strike

Most Read