Extended snow and cold are dragging more areas of northern Minnesota into "severe winter'' status according to an index watched by wildlife officials.
As of Thursday, severe conditions existed across 14 deer permit areas, a reversal from last year's comparative nonwinter. The region hardest hit is inland from the North Shore in Lake and Cook counties. Elsewhere, parts of St. Louis, Koochiching, Lake of the Woods, Roseau, Itasca, Beltrami, Clearwater, Kittson, Marshall, Hubbard and Cass counties have experienced winter weather classified by the index as "severe.''
Officials say weather-related fawn deaths have been reported sporadically across the northern tier, but whitetails have shown a lot of resilience under conditions that have hampered their mobility and feeding. The last severe winter across a broad area of northern Minnesota was in 2013-2014, said Barb Keller, big game program supervisor for the Department of Natural Resources (DNR).
"This is when deer are on the edge,'' Keller said. "But we're not hearing of any widespread deer die-offs.''
Along Hwy. 61 north of Duluth, travelers are urged to be vigilant for deer because herds have been congregating there in search of food, escaping deeper snow in the forest.
"They are finding food but there are lots of collisions,'' said Nancy Hansen, DNR area wildlife manager in Two Harbors.
Northeast of Duluth this week, Hansen said the snowpack in certain places still was more than 30 inches. According to the DNR's Winter Severity Index, one point accumulates for every day there are more than 15 inches of snow on the ground. Another point accumulates for each day with a temperature of zero or less. End of season values of 120 or more are severe. Last winter, there wasn't a score higher than 42 points across a permit area anywhere in the state. This week, the deer permit area at the tip of the Arrowhead was listed with 172 points.
For moose in the region, Hansen said, this spring's deep snow could bring a blessing by suppressing reproduction of ticks that feed on them over the winter. As the ticks fall off now, many will die in the snow before they can reach leaf litter to lay eggs. On the flip side, Hansen said, many moose lost a degree of protection against this winter's bitter cold by scratching away fur to fight the ticks.