Squirrel Distribution

Red Squirrel Distribution

1948 to 2013

Grey Squirrel Distribution

1948 to 2013

Before 1948

By 1968

By 1988

By 1998

Records 2008 -2013

The charts show very clearly how the Grey Squirrel has spread into all parts of Cumbria.

The latest chart (sightings between 2008 and 2013) seems to show an improvement in the distribution. This may well be but it's more likely to be an improvement in the reporting of sightings - note that the long established Anglesey and Isle of Wight populations are now shown.

The above charts have been created using data provided by the following contributors to the National Biodiversity Network (NBN)

Biological Records Centre

Bristol Regional Environmental Records Centre

Devon Biodiversity Records Centre

East Ayrshire Countryside Ranger Service

Environment and Heritage Service

Greenspace Information for Greater London

Highland Biological Recording Group

Lothian Wildlife Information Centre

Northumberland Wildlife Trust

Scottish Borders Biological Records Centre

Scottish Natural Heritage

St Helens Wildlife Recording Group

Staffordshire Ecological Record

The Bat Conservation Trust