Identification
To simplify identification, there are two identification keys. The PictureKey is based on pictures while the IdentifyIt key is based on characters chosen by the user.
In the identification keys, descriptions of adult animals are assumed, unless mentioned differently. For every species, there is a description of its habits, the habitat where it occurs and its distribution in the British Isles. All species are richly illustrated with colour pictures.
Some technical terms are explained in the Glossary by means of text and/or illustrations.