This month's mystery comes from a park in St. Paul, after one of our late winter snowfalls. The question is "Who & Which Foot?"

An ideal answer will identify the track-maker as specifically as possible, and identify which foot of four (right/left, front/hind) we see here. Please also explain how you arrived at your answer, and how you eliminated other possibilities. Sharing your resources, logic, and reasoning will help others benefit from your process.

To download the photo or view it larger size, right click the image below.
Answers are due by Sunday, April 3.