Couple evenings ago, some crows were making a real racket for the longest time near the house. Finally we look and see a fox crossing the back yard. And that just happened again. I was in the garden, heard the crows, saw the fox around the edge. When he saw me, he turned the other way and the crows followed to annoy him as he went. ( or she). If not for the crows I would not have looked up and seen it. And saw our black snake again. So voles, be gone!!!