Some guys from the desert SW dis' sight tracking in the snow.... that's because they rarely get the chance to! If they had snow they'd do it too!
Run all the snow roads you can, cut tracks, locate fresh ones, walk them until it looks like they're meandering, hunting, or otherwise messing around, then find a spot and set up and call them with a combination of distress (to wake up the woods) and Cougar vocals.
(Good Cougar vocals of course, like the RS series!!!!)
If you don't have good tracks, hit known travel corridores, terrain funnels and crossings and cold call.