In this section's pages you can identify a butterfly you have spotted.

We also have our first sightings pages. Here you can find out the date of the first sightings of each species every year.

Butterflies act as an important early warning system for the impacts of such changes on thousands of other species, so changes in first sighting dates can have huge significance.

The 56 species in Britain and Ireland are under threat today from unprecedented environmental change.

Habitats have been destroyed on a massive scale, and now patterns of climate and weather are shifting unpredictably in response to pollution of the atmosphere.

Conserving butterflies will improve our whole environment for wildlife and enrich the lives of people now and in the future.