Blocking mice?

[Just4Fun]

There are supposedly wolves in our area but I have never seen one outside of zoo.

Uh-oh. Strange tracks appeared in the snow in our front garden overnight. I am unreliably informed (by my son, who at least claims to know something about this) that they could be wolf or wolverine. My wife has seen a wolverine here and neighbours have said there are wolves around so either is a possibility. Hard to make a positive ID because the tracks are not too clear, but son says it looks like whatever it was has been chasing a fox. If it is big enough and vicious enough to hunt foxes it is not something I want to encounter in my garden.