Found this fresh kill of a Deer Mouse this evening on our driveway.  Most likely an Owl kill, for when hunting is very good owls will behead the mice and eat only the brains.  We have seen this before, especially with Screech Owls. We have three species of owls at our place: Screech, Barred, and Great Horned.  We hear our owls far more often than we see them.