Zombie Dribble: To Make Sure

Someone or something is moving on the other side of the fence.  With the sun setting and gloomy skies, I can’t tell if it is one of the living or the dead.  If they return, I can use my rifle to make sure.  I just hate to waste a bullet. 

A Savage 110 Snipers Rifle – photo by FrankWilliams, Public domain, via Wikimedia Commons