The comma butterfly (Polygonia c-album) is unusual because it overwinters as an adult. As temperatures drop, it begins seeking sheltered spots - tree hollows, sheds, log piles, ivy and dense vegetation - where it will eventually settle for the coldest months. Yet on bright, mild days it may still take flight, offering a surprising flash of colour among the fading foliage.

The comma is a common sight along woodland edges, hedgerows, parks and gardens. Its upper wings glow orange with bold brown spots, while the underside is a perfect mimic of a curled, withered leaf. The cryptic brown colouring, paired with its jagged wing edges, helps it stay hidden from predators throughout winter.

The commas appearing now are from a darker, late-season generation adapted to survive the cold. Whereas the commas that emerged in early summer are much paler in colour, while their darker counterparts prepare for overwintering.

We look after nature reserves to help butterflies like the comma thrive throughout the year. By carefully managing areas of woodland - such as opening up sunny paths and keeping a balance of scrub and open spaces – the Trust creates warm, sheltered places where butterflies can feed, breed and safely spend the winter.