I often drive past marshes with muskrat lodges during my winter routine. I cannot help but wonder how they are faring. Those lodges provide good cover and insulation from the winter cold. The lodge has a small living chamber above the waterline with one or two opening to the water below. Muskrats feed on the roots of cattails, bulrushes, and other aquatic vegetation. And they remain active and feed regularly under the cover of ice during the winter months.