Mink males weigh a couple pounds, females a pound and a quarter, and are a dark brown. They can sometimes be seen in daylight as they are a typically fearless weasel. Mink are semi-aquatic, even in a winter like this. You can often see their offset pairs of tracks on a stream going from one open hole to another as they search for crayfish and other aquatic victims.
How would you like to make your living in icy water underneath a thick layer of ice and snow? With their thick coat of underfur they probably don't even notice there is a problem!