Yes they sure are, Lin. :D
This page describes their nest...
http://www.fcps.edu/islandcree...
"Meadow Voles make nests in clumps of grass, using materials such as dry grass, sedges, and weeds. From their nests, they build "runways," like tunnels beneath the grass and plants."
We have voles, but they seem to stay out in the pasture.