Voles have rounder faces, smaller eyes and ears and shorter tails than a mouse. The field vole is a small, dark, shaggy rodent which is grey-brown above and creamy-grey beneath with a short tail. Adults have a body length of 13cms plus a 4cm tail (about 30% of its body length). It has a faint voice with a low squeak and makes a range of chattering sounds. The Bank vole is similar but is smaller at just 10cm with a proportionally longer 6cm tail.