Key Takeaways
- Thermal drones equipped with infrared cameras, paired with AI analysis, offer a non‑invasive way to detect nocturnal wild boar across large landscapes.
- In a 2024 Alberta field trial, two AI models achieved over 75 % detection accuracy for boar herds, though they still struggle with piglets, warm background objects, and species confusion.
- The project also produced a habitat‑suitability map that highlights hotspots near Edmonton and Grande Prairie to guide future monitoring and mitigation.
- Researchers view the technology as a promising addition to Alberta’s eradication toolkit, but stress that true elimination will require long‑term, national, science‑based cooperation.
Introduction to the Wild Boar Challenge
Alberta’s feral pig population—comprising Eurasian wild boar, domestic‑pig hybrids, and so‑called “super pigs”—has become a mounting agricultural and ecological threat. “They are highly adaptable omnivores, which usually weigh between 55 and 115 kilograms — roughly 120 to 250 pounds. They are also prolific breeders, with sows capable of producing two litters every 12 to 15 months,” notes the provincial report. These animals trample habitats, devour crops, harass livestock, contaminate water sources, and can carry diseases such as African swine fever that would devastate Alberta’s pork industry if introduced.
Why Traditional Detection Falls Short
Conventional methods—ground tracking, helicopter surveys, trail cameras—often fail because wild boar are nocturnal, intelligent, and wary of humans. Ryan Brook, a University of Saskatchewan professor and lead researcher for the Canadian Wild Pig Research Project, explains: “When pigs see any sign of human activity, they get into heavy, heavy cover and just disappear. So being able to look down from the air is just invaluable.” He adds that as camera technology improves, “we’re just going to see better capacity to find these pigs … and that’s a huge part of the battle.”
Thermal Drones Enter the Field
To overcome these limitations, Alberta Agriculture partnered with the University of Calgary on the Wild Boar at Large Detection Project. In spring 2024, researchers deployed thermal drones equipped with infrared cameras that detect heat radiation from boar bodies. “Thermal imaging works best at night, when the heat signatures captured on camera are more distinct from their comparatively cold surroundings,” the report states. The aerial platform allowed teams to cover more than 3,000 kilometres without disturbing the animals.
Training Artificial Intelligence to Recognize Boar
The drone footage was fed into two AI programs trained to identify wild boar and count individuals. Hannah McKenzie, Alberta government wild boar specialist, says, “It really helps with maximizing efficiency in terms of field work, but also gives us just a different tool to monitor a species that is difficult to monitor.” The AI models were validated using thermal images from a Peace River‑area farm (about 390 km northwest of Edmonton) and tested on a second farm nearer Edmonton that offered more natural cover.
Results: Detection Accuracy and Limitations
Both AI models achieved detection accuracies exceeding 75 % for boar herds. However, challenges persisted. “Both models struggled to detect small piglets and occasionally misidentified groups of wild boar as a single large animal,” McKenzie notes. Thermal sensors can be confused by warm rocks or branches, dense tree canopies can block heat signatures, and the AI sometimes misclassifies deer or other wildlife as boar. McKenzie advocates for future work that includes “data of a lot of other species so that we’re not just training the model of what wild boar are, but we’re also training it what wild boar aren’t.”
Habitat‑Suitability Mapping
Beyond detection, the project generated a habitat‑suitability model that layers public sightings with environmental data to predict where boar are most likely to thrive. Mathieu Pruvot, a veterinary epidemiology expert at the University of Calgary, explains that the model highlights “areas surrounding Edmonton and Grande Prairie” as potential hotspots, especially where former or active wild boar farms increase the likelihood of escapees. Access to water and crops further raises susceptibility. Pruvot stresses that the map will remain a “work in progress” but will help direct resources to the places where they are needed most.
Broader Implications and Future Use
If refined, the drone‑AI system could serve multiple roles: surveying populations during disease outbreaks, assisting GPS tracking of sounders (groups of sows and piglets), and providing a clearer estimate of Alberta’s total wild boar population. McKenzie envisions the technology as part of an “increasingly collaborative, long‑term monitoring program.”
Expert Perspective on Eradication Prospects
Ryan Brook applauds Alberta’s shift toward proactive measures but cautions that eradication is a long road. “We’ve learned over the years that wild pigs are very, very cryptic. They hide away very well and there is no single method that is sufficient to detect where these things are.” He believes the drone project and recent regulatory changes should be celebrated, yet stresses that true elimination will require “a national, science‑based strategy to outsmart a species that does not respect provincial boundaries.”
Conclusion
The integration of thermal drones with AI represents a promising step forward in Alberta’s battle against invasive wild boar. While detection accuracy is encouraging, ongoing refinement is needed to overcome limitations with piglets, environmental interference, and species confusion. Coupled with habitat‑mapping insights, the technology offers a more efficient, less invasive tool for monitoring and managing a pest that threatens agriculture, ecosystems, and the provincial pork industry. Continued collaboration, data sharing across jurisdictions, and sustained investment will be essential to turn these early successes into long‑term control—and ultimately, eradication—of wild boar in Alberta and beyond.
https://www.cbc.ca/news/canada/edmonton/alberta-wild-boar-drones-9.7159112