Where do BC's bats go in winter? Climbers can help shed light on the mystery.
It’s a question that’s puzzled biologists for years. Unlike their eastern counterparts, which hibernate in caves, bats in BC seem to disappear when the cold weather sets in. Only scattered sightings hint at their whereabouts—in rocky crevices, under house trim, or in isolated gullies.
"Here in BC, we don’t have those big caves where bats overwinter in large numbers," explains Mandy Kellner, Bat Conservation Coordinator in the Ministry of Water, Land and Resource Stewardship. "Instead, they go somewhere—we just don’t know exactly where."
This mystery is more than just an academic puzzle. Understanding where bats hibernate is crucial to understanding threats and possibly protecting these tiny animals, especially as White-Nose Syndrome—a devastating fungal disease—spreads across North America. That’s why BC Parks is turning to an unexpected group for help: rock climbers.
Inspired by a similar successful initiative in Colorado, Mandy and her team are reaching out to BC's climbing community to report bat sightings between September and May. If climbers spot a bat, they’re encouraged to photograph it and upload the image to the community science app iNaturalist.ca. “We’re not interested in closing climbing routes,” Mandy says. “We just want to increase our knowledge about our bat species so we can better protect them.”\

A group of park visitors take in the breathtaking views at Stawamus Chief Park—one of the key sites where BC Parks hopes to collect information about BC’s elusive bats.