If you’ve ever seen tell-tale tunnels in your plot, dug up your potatoes to find that most of them have been already eaten or turned over a stepping stone and discovered a nest of baby voles waiting to grow up and devour your produce, you understand why people search for help on how to catch voles. This simple method may provide some help.
http://ucanr.edu/sites/scmg/The_Kitchen_Garden/Additional_KG_Articles/Catching_Voles/