Claire Brimacombe was walking through a park in East Sussex last February, when her eyes suddenly fell on a white squirrel.

After she kept on the seeing the unusual rodent - only one in 100,000 are born albino - in the Alfriston park, she decided to start recording the sightings, noting apparent hotspots for them in the county.

Now a website she set up records white squirrel sightings from across the UK, and Claire has appealed for help in investigating why there seem to be so many across the country.