Interactive River

River

Water vole

Arvicola amphibius

A chubby, chestnut-brown vole with a blunt nose, small furry ears and a furry tail.

Size
Body about 18cm long
Look for it
March to October
Where
Grassy banks of slow rivers, ditches, canals and ponds

My spotter's list

Paddles after you, leaving a little wake. Move your pointer and see.

When to look

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Water vole

Good to know

Six things about the water vole

Ratty

The real Ratty

Ratty in The Wind in the Willows was really a water vole, not a rat.

Sound

Listen for the plop

A startled water vole dives in with a loud plop. That is often the first sign that one is there.

Appetite

A big eater

A water vole eats about 80 per cent of its own body weight in plants every day.

Signs

Neat lawns

Look for small patches of nibbled grass round a burrow entrance, and stems cut at a slant.

Decline

In trouble

Water voles have disappeared from most of the places they once lived, mainly because of American mink and lost riverbank habitat.

Tell

Vole or rat?

A water vole has a blunt face, ears almost hidden in fur and a furry tail. A rat has a pointed face, big ears and a bare tail.

The real thing

Photos of the water vole

Water vole, photo 1
Photo: Ragnhild&Neil Crawford from Sweden, CC BY-SA 2.0, Wikimedia Commons
Water vole, photo 2
Photo: Russel Wills, CC BY-SA 2.0, Wikimedia Commons
Water vole, photo 3
Photo: Ragnhild&Neil Crawford from Sweden, CC BY-SA 2.0, Wikimedia Commons
Out and about

How to spot one

Sit quietly by a slow, grassy-banked stream. Listen for a plop, and look for round burrows at the waterline with a nibbled lawn round them.

Lend a hand

How to help

Leave tall plants on river and ditch banks, and report any sightings: conservation groups need to know where they are holding on.

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