potatoes eaten in the group -- moles/voles

moles eat worms and grubs.

voles are omnivores, but favor plants/edible roots.

a few good hunting cats.

songbird

I got rid of the ones I had by using a poison containing zinc phosphide put in their tunnels. It was much more effective than other things I tried. Read that you have to be careful if you have a dog that might dig it up.

I read that acid in their stomach create phosphine which is more toxic than hydrogen sulfide. I think it must also form in their tunnels as it got rid of all that were bothering me.

Voles eat plant roots, also the plant parts they can pull underground..

Feral cats will get rid of every rodent... my three muscateers police my property and my neighbor's, they are hunting some 40 acres, I had a huge vole infestation but I haven't seen evidence of a rodent in two years now. Thing is I don't suggest feral cats in surburbia, and indoor-outdoor house cats aren't very good at hunting rodents, they will mostly kill birds strictly for entertainment, not because they are hungry, and dump them at your door. My ferals eat their kill, they prefer fresh kill to cat food, they don't bother hunting birds, why waste their time and energy hunting critters that can fly off.