It is through smell, visual, hearing and tracking that the wolf finds it’s pray. It also happens that they by random meetings find there pray.

The wolf nose has a scent area more than 14 times bigger than mankind has. The wolf can pick up the scent of a pray at a distance of more than 2 kilometres.

It has a essential tracking drive, used only for hunting. It would never ”backtrack” because it would leave them starving.