Our 2019-2021 field activities spurred some exploratory work in the Canadian Rockies for army cutworm moths and possible interactions with grizzly bears, beginning in 2022. Our research originally planned to include the adjacent Waterton Lakes National Park and Akamina-Kishenena Provincial Park in Canada, but the 2020 pandemic prevented all field activities from occurring within those jurisdictions.

A small consortium primarily comprised of Canadian-based groups came together to explore potential army cutworm moth-grizzly bear interactions in the Canadian Rockies. As a first step, we assessed past grizzly bear telemetry data from 2001-2021 for data clusters in areas consistent with army cutworm moth foraging in Glacier National Park (MT). Based on that assessment, recreational field excursions were undertaken during the 2022-2024 summers on certain mountains from Banff National Park south to the US border to see if a) army cutworm moths were present, and if so, b) whether sign of grizzly bear moth foraging could be also be detected. The results were summarized and published as a short note for publication in The Canadian Field Naturalist late in 2024, and freely available via this link: https://doi.org/10.22621/cfn.v138i2.3141