I think it's a pure wolf. A wolf doesn't act as a coyote does. Wolf is more of a hunter. To the general public (not hunters/fishermen) a wolf could be in the area and nobody know it's there, where a coyote is bolder, shows itself more.
Several years ago there was a polar bear captured on the Avalon. If I polar bear can come that far on the ice, who's to say wolves didn't. A wolf could come in on the ice and head into the woods unseen, and be here without anyone knowing its even there