Birds, fish floating in 'death pond' at Winnipeg park disturbs residents

Countless birds and fish are dying in a retention pond that was once a haven for wildlife, residents in Winnipeg's Mandalay West neighbourhood say.

Garvin De La Motheand his girlfriend often visit the pond in Santa Fe Park at the corner ofDr. Jose Rizal Way andAdsumDrive to watch birds frolic in the water. On Aug. 16, they were startled to see dozens of dead or dying birdscoated in green algae, and dead fishfloating at the water's surface.

"What I saw was probably 20 or 30 birdsCanadian geese, mallards [and]song birds," saidDe LaMothe, who lives just a block away from the pond. "Literally thousands of minnows."

The couple reported the deaths to 311. They said workers came to collect the animals a couple days later.

"It really affected my girlfriend and myself," De LaMothesaid.

ByThursday most of the dead animalshadremoved. CBCsaw three dead birdscovered in flies on the pond's gravel shoreline.

A video De La Mothe took with his phone last Thursday showshundredsof silver minnows and larger fishdead alongside waterfowl.

"Now I call it the death pond," he said.

Birds sent forrehabilitation

Animal advocateChooRosenbloom saw the dead birds as well. After seeing a gull in distress, she ran to grab a box she thought wouldcradle itsafely.

"I went to the car, came back to the pond and he was belly up," she said. Within minutes, theseagull died.

Rosenbloom did recover twopelicans and three other seagulls, which shetookto the Prairie Wildlife Rehabilitation Centre in Winnipeg. She hopes they will recover but isn't optimistic.

"Then you go down there and you see the three pelicans large, majestic birdsunable to swim, just gasping for breath," she said. "It's really heartbreaking. That's why I was trying to catch them all."

Cause of deaths remains murky

The cause of the die-offis still unknown.

A spokesperson for the City of Winnipeg,Michelle Finley, says early data points to natural causes but work is still being done to investigate.

The city sentsamples of the dead animals to the provincial chief veterinarian's office for tests.

A spokesperson for Sustainable Development says staff are"working diligently to determine what has led to the deaths."

One possible cause is botulism, which can occur naturally in ponds, the provincial spokesperson says.

"Botulism outbreaks are common at this time of year. Unfortunately, little can be done to address this until weather conditions change with cooler temperatures and/or rain that would raise the water level in the pond.

"In extended periods of hot weather, blue-green algae can develop, and this has also been known to cause fish and bird mortality."

LisaTretiak, president of the Prairie Wildlife Rehabilitation Centre, says it isn't abnormal to find one or two dead birds in a pond, but as many as a dozenat a timeis peculiar.

"Thereis something very specific within this pond that is killing these animals," she said.

Tretiak believes the toxicalgae may be causing the deaths because both fish and birds are being affected.

The centreresponded Wednesday night to a request to pick up animals the city had rescued from the pond. On Thursdaythe centre posted that three of the birds had died.

The province and city is urging people to avoid contact with the water, keep pets away and avoid touching dead birds.

Feeding birds an issue

Multiple residents CBC spoke with on Thursday said wildlife may be dying in the lakein partbecause people regularly feed birds in the area.

De La Mothe says he has witnessed people throwing everything from dinner leftovers to popcorn and bread crumbs at the shore all food unhealthy for birds to eat.

InFinley's written statement, she said the city urgesresidents to avoid feeding wildlife.

"Feeding wild birds at retention ponds is not recommended as it causes the number of birds in the area to grow at an unsustainable rate and can lead to an increase in avian diseases," she wrote.

Any injured or sick wildlife should be reported toManitoba's Department of Sustainable Development, she said.Dead animals should be reported to 311.