Summary

• In early May, 49 birds were found in tailings ponds at Imperial Oil’s Kearl oilsands mine. Later in the month, 95 birds were found dead at the Suncor Firebag site.
• The Alberta government’s oilsands mine water steering committee made recommendations in 2025 to speed up creating standards for treating and releasing tailings, which are generated as a by-product of the oil extraction process.
• Treating and releasing tailings into rivers has been criticized by downstream First Nations, including Mikisew Cree First Nation.

At Jean L’Hommecourt’s cabin north of Fort McMurray, the birdsong is frequently interrupted by the hollow booming of a cannon, a stark reminder of the proximity of the oilsands in an otherwise tranquil setting of muskeg and boreal forest. 

L’Hommecourt got another reminder of her toxic neighbour last month. Announcements about oiled birds in tailings ponds have L’Hommecourt, who is from Fort McKay First Nation, and other community members thinking about the 1.4 billion cubic litres of tailings ponds upstream of their water supply and food sources in northern Alberta. 

The booming cannons heard from L’Hommecourt’s cabin are an attempt to scare away birds that might otherwise land on tailings ponds and perish — but they don’t always work. Fort McKay First Nation notified members that 49 birds were found in tailings ponds at Imperial Oil’s Kearl oilsands mine between May 1 and 8. “Detection and deterrent systems, including the use of drones for hazing, have remained active during this spring migration period,” the notice to members said. The Narwhal reached out to Imperial Oil to ask whether the birds were found deceased, or if any birds had been retrieved and rehabilitated, but the company did not respond to multiple requests for comment. 

“It’s claiming the lives of our waterfowl. That is our traditional foods,” L’Hommecourt, who has been an advocate for clean drinking water, said.  

L’Hommecourt’s cabin is 13 kilometres away from the Kearl mine site and she no longer harvests plants or berries from the area. She is concerned about the effects of air pollution, though she and her husband will still harvest moose, as they live on a diet of traditional foods as much as possible. 

95 more birds found dead at Suncor site in May

Living downstream of tailings ponds has long been a concern for residents in and around Fort McKay, which is in the middle of much oilsands mining activity, as well as in Fort Chipewyan, a remote fly-in community accessible only by plane or winter road that is downstream of the oilsands. Fort Chipewyan has three Indigenous groups: Athabasca Chipewyan First Nation, the Fort Chipewyan Métis and the Mikisew Cree.

On May 24, Mikisew Cree First Nation also notified members that birds were found dead at one of Suncor’s oilsands sites, known as the Suncor Firebag site. 

“After a thorough search of the area, a total of 95 birds have been found deceased in the north-east quadrant of the site, not near any bodies of water,” a spokesperson for Suncor said in a statement.

Birds land on tailings ponds to rest as they migrate. Lights from the work camps, changes in temperature and even a change in headwinds can mean the migrating birds need these pit stops.

When a bird lands in a tailings pond they can become coated with oil, which can reduce the waterproofing in their feathers and can cause them to sink. Birds that can get out of the tailings pond and have the oil removed may have reduced insulation and other negative effects that can lead to hypothermia even from small amounts of oil, according to a federal government report on annual bird mortality in the oilsands.

The Alberta Energy Regulator said it was conducting an inspection of the Firebag site for more information about the dead birds. 

A spokesperson for the regulator said by email that oilsands operators typically use a number of deterrents to stop birds or other wildlife from ending up in tailings ponds, including propane-fired cannons and loudspeakers, scarecrows, human effigies and kites shaped like hawks.

The Narwhal previously reported on an unreleased internal document from the Alberta Energy Regulator in 2021 that showed an “emphasis on the appearance of sophisticated bird protection over data that demonstrate it.”

L’Hommecourt said she is upset that even though there is ample time to plan new deterrents, communities are still receiving notifications about oiled birds and bird deaths. 

Suncor added in a statement that it has a monitoring and mitigation program to prevent its sites from harming wildlife. The cause of death for the birds is currently unknown. 

Bird deaths continue as Alberta plans a new treat-and-release approach to tailings

The announcements have spurred further concern about pollution issues downstream of the oilsands. Mikisew Cree First Nation Chief Billy-Joe Tuccaro went to Ottawa in November to call on the federal government to manage tailings ponds and other industrial waste in a way that protects nearby communities like Fort Chipewyan, where he said he doesn’t feel Indigenous sovereignty or community concerns about water are being taken seriously. 

“So, what they’re saying is that it’s safe. Well, if it’s so safe, build a pipeline, put it right by the [legislature] in Edmonton. The premier can drink it first, then send another pipeline to Calgary, then the Bow, they can drink it as well, those corporate people, and then build one, go to the east, and then Carney could drink it too,” he told The Narwhal. 

“And then they could be the science experiments, the subjects, because we’re tired of it.”

The Alberta government’s oilsands mine water steering committee made recommendations in 2025 to speed up creating standards for treating and releasing the water generated as a by-product of the oil extraction process.

The liquid is a mixture of residual bitumen, heavy metals, clay and sand. Studies show that the “oilsands process-affected water,” as it is called in industry, also contains a toxic slurry of naphthenic acids, volatile organic compounds and polycyclic aromatic hydrocarbons. These can cause health effects including narcosis (cell poisoning) and disrupt the endocrine system, which can cause issues with diabetes, fertility, thyroid malfunction and increased cancer risk.

Tuccaro said there have not been enough studies into the cumulative effects of oilsands mining. While the focus on water safety tends to be on drinking water from the taps, he added there is also an effect from consuming traditional foods such as berries and fish from the area. 

All three Indigenous communities in the Fort Chipewyan area — the Mikisew Cree, the Athabasca Chipewyan First Nation and the Fort Chipewyan Métis — have expressed concerns about the Alberta government’s plans to treat and release tailings pond water. 

Tany Yao, the MLA for the area, did not respond to a media request about the birds in the tailings ponds nor about the Fort Chipewyan residents’ concerns about the plans to eventually treat and release tailings pond water.

Updated June 17, 2026, at 6:43 a.m. MT: Due to an editing error, a previous version of the summary at the top of this article stated all 49 birds found in tailings ponds at Imperial Oil’s Kearl oilsands mine had died. In fact, the company did not respond to questions about whether the birds were confirmed dead, as the article states. The summary also stated birds at the Suncor site were found dead in tailings ponds when the company said they were not found in water, as the article says.

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