Grayling, Folly Bog
Introduction
The photograph on this page of Grayling, Folly Bog by Alan Hunt as part of the Geograph project.
The Geograph project started in 2005 with the aim of publishing, organising and preserving representative images for every square kilometre of Great Britain, Ireland and the Isle of Man.
There are currently over 7.5m images from over 14,400 individuals and you can help contribute to the project by visiting https://www.geograph.org.uk

Image: © Alan Hunt Taken: 31 Jul 2014
A Grayling (Hipparchia semele) in the Folly Bog near West End. This is one of the best camouflaged butterflies in the UK, when settled on gravel or pine detritus it can totally disappear. The eye on the forewing is normally hidden but the butterfly will flick up the forewing when it feels threatened to distract predators. The heaths of southern England are among its last strongholds, the species having suffered major population declines over the last 20 years.
