Amidst the heavy snowfall in Nova Scotia this winter, the province’s small Northern saw-whet owls are venturing into human-inhabited regions in search of food. The thick snow cover has made it challenging for these tiny owls, smaller than robins, to hunt their usual prey of mice, voles, and shrews, explains Randy Lauff, a biologist at St. Francis Xavier University specializing in boreal and Northern saw-whet owls. Known for their keen eyesight and exceptional hearing, owls possess unique predatory skills.
Unlike larger owls that can locate rodents beneath thick snow layers and capture them with strength and precision, saw-whet owls struggle due to their petite size. Consequently, these owls are being frequently sighted in rural and urban areas with bird feeders this winter, as they are drawn to the mice and small birds attracted to the feeders.
At Hatfield Farm in Hammonds Plains, N.S., a saw-whet owl was recently spotted seeking shelter in one of the barns, possibly in pursuit of small prey around the premises. Cherie Hatfield, the farm owner, noted the increased presence of predators during the snowy season.
Lauff advises Nova Scotians to respect the space of saw-whet owls if encountered in their yards. Stressing the importance of minimizing disturbances to the owls, Lauff recommended refraining from prolonged interactions or photography that could agitate the birds. He also highlighted the detrimental impact of human interference on the owls’ hunting activities, especially crucial during the early evening hours when saw-whets typically hunt.
Snow cover presents both advantages and challenges for birds of prey like owls. While the white snow aids in spotting dark-colored prey like mice, icy crusts can impede access to food sources. Hope Swinemar, founder of Hope for Wildlife wildlife rescue center, emphasized the resilience of these creatures in adapting to harsh winter conditions.
Despite the potential hardships posed by severe winters, Swinemar noted that wildlife, including owls, have evolved effective survival strategies. The natural world, she asserted, is adept at enduring challenging weather conditions, showcasing remarkable resilience honed over generations.