Tracks

First is the Cottontail rabbit hopping through it's journey. The back two feet land close enough together that it appears to be one track. If it were under duress the rear two feet would be spread apart, one behind the other, indicating it was running.

The side by side tracks clue a creature that bounds and in this case only the rear two feet are showing up so it's likely a Kangaroo rat. These tiny creatures when startled with the headlights of your jeep in the night can jump six to eight feet in a single bound.

In Tom's opinion the 3rd set of tracks are of a weasel. The critter is riding low in the snow and dragging it's feet and possibly a tail from step to step.