It's a good idea, and I think if you fail to herd them it will be related to where they placed their larder.
In Earthworm Ecology, edited by renowned entomologist Clive Edwards, researcher James P. Curry notes, “Large quantities of mutilated earthworms are stored in caches within a mole fortress as future food.” One study found 470 live earthworms in a single chamber. This amounted to nearly 2 pounds, of worms. A study of moles in Britain found a single mole consumes approximately 39 to 70 pounds of earthworms annually.
I wonder if voles are thieves, and a population boom in a mole tunnel system results in the mole starving?



