More info about vole: http://www.bbc.co.uk/watchout/6vole.htm

A text summary of the clickable map above, meant for web-crawlers and other automatic tools:
vole included in vole population
vole eats centipede
vole eats earthworm
vole eats herb
vole eats insect
vole eats insect (preying)
vole eats millipede
vole eats seed
vole eats spider
vole is a type of predator
vole is a type of prey
vole eaten by coyote
vole eaten by mountain lion
vole eaten by raccoon
vole eaten by shrew
vole eaten by skunk
vole eaten by snake
vole eaten by owl