A comma butterfly (Polygonia c-album) feeding on the flowers of a blackthorn or sloe tree (Prunus spinosa) in early spring. The blackthorn's flowers are among the first to appear in spring, adding colour to leafless woods and hedges and also providing food for early butterflies. The comma is a distinctive butterfly that has been becoming more common in England in recent times. This image was taken on a section of the High Weald Walk near Tunbridge Wells, Kent.