The Case of the Vanishing Squirrel Narrated by David Attenborough.
When Squirrel Nutkin was published in 1903, Beatrix Potter 's delightful hero was familiar to British readers.
Today we may still think red squirrels delightful, but few of us will have seen one.
Since the Second World War they have disappeared from most English counties and are much reduced in the rest of Britain.
What has caused this dramatic decline - disease?
Starvation? The introduction of grey squirrels?
Jessica Holm is trying to solve the mystery.
Film editor PETER HEELEY Written and produced by DILYS BREESE
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