Wildlife enthusiast Terry Chettle, a resident of Beamsville, Ontario, was photographing a green heron at Grimsby Wetlands in early August when an unexpected encounter unfolded between a river otter and the heron. Chettle expressed astonishment at the otter’s presence, as they are not commonly seen in the area. Capturing the otter on camera as it moved to a log and engaged in preening, Chettle described the experience as the otter putting on a playful display, sticking out its tongue and waving.
During the same outing, Bruce and Laurie Mackenzie, while strolling through the wetland, crossed paths with Chettle, who pointed out the otter. Bruce Mackenzie acknowledged the rarity of the sighting, stating that to his knowledge, the otter spotted on August 3 was the first seen near the wetlands in recent times. He mentioned that there have been no further sightings of the otter since that weekend.
The Grimsby Wetlands, formerly a sewage storage site for the Niagara Region, is now maintained by the Hamilton Naturalists’ Club, covering approximately 12 hectares along Lake Ontario’s South Shore. Bruce Mackenzie, who is involved with the naturalists club as the project manager for the wetlands, highlighted the significance of the otter sighting in reflecting positively on habitat restoration and water quality. He noted previous rare species sightings in the wetlands, such as least bitterns, which are small herons facing threats in Ontario.
Otters symbolize a conservation success story, according to Laura Timms, a program manager specializing in natural heritage management at Credit Valley Conservation. She shared that the conservation authority, overseeing the Credit River watershed encompassing large parts of Mississauga and Peel Region, published an article in 2025 documenting the resurgence of river otters in the area. Timms remarked on the increasing trend of otter sightings, contrasting with past assumptions where otter reports without accompanying photos were often mistaken for minks. Notably, recent documented otter sightings have been more frequent, with instances of otters giving birth to pups at conservation areas like Rattray Marsh and Jim Tovey Lakeview.
River otter populations faced a decline in the 1800s due to factors like hunting, habitat destruction, and poor water quality. Timms emphasized that efforts to revitalize degraded environments have led to a rebound in otter populations across North America, showcasing the benefits of long-term conservation endeavors.
While celebrating the resurgence of otters, Timms underscored the importance of addressing broader biodiversity challenges. Highlighting the loss of wetlands and the critical role they play in supporting various species, storing carbon, and mitigating floods, she stressed the ongoing need to restore and safeguard diverse habitats for the thriving coexistence of all species, aiming to replicate conservation success stories seen with otters.