Tracking Animals in the Snow

I have been tracking animal prints in the snow.  Many of the larger critters use the road like we do.  I find that very amusing.  They are doing the smart thing to conserve energy.  Up to now I can identify deer, fox, coyote, vole, and squirrel.  Because I am a novice in the Northwoods, I have a particular way of doing it.  I identify the track and then decide to follow it or track the prints where the animal came from - depending on what it is...