The recent heavy snowfall in Nova Scotia this winter is causing smaller owls in the province to venture into more inhabited areas in search of food. Randy Lauff, a biology professor at St. Francis Xavier University specializing in boreal and Northern saw-whet owls, explains that the snow cover is hindering the tiny Northern saw-whet owl, smaller than a robin, from hunting its usual prey of mice, voles, and shrews.
Lauff highlights that owls, known for their sharp eyesight and exceptional hearing, are well-equipped for hunting. Larger owls can detect rodents moving beneath thick snow layers and use their size and strength to catch prey with precision. However, the diminutive saw-whet owls face challenges due to their small stature.
As a result of their struggles to find food, saw-whet owls are being sighted more frequently in urban and rural areas with bird feeders this winter. Contrary to popular belief, they are not drawn to the seeds but are interested in the mice and small birds attracted to the feeders.
Cherie Hatfield, owner of Hatfield Farm in Hammonds Plains, N.S., recently had a saw-whet owl visit their property for the first time. The owl briefly took refuge in one of the barns before moving on, possibly in search of small prey around the area.
Lauff advises Nova Scotians who encounter saw-whet owls to respect their space and avoid disturbing them. He emphasizes the importance of allowing the owls to hunt undisturbed, especially during the crucial dusk hours when they are most active.
Snow cover presents both advantages and challenges for birds of prey, according to Hope Swinemar, founder of Hope for Wildlife in Seaforth, N.S. While the white snow makes prey more visible, icy crusts can make hunting difficult. Swinemar notes that harsh winters can lead to increased starvation among birds of prey.
Despite the challenges posed by winter conditions, most wildlife, including birds and animals, are resilient and adept at adapting to harsh weather. Swinemar emphasizes that the natural world has evolved mechanisms to cope with challenging environments over time.