Wider Countryside Butterfly Scheme (WCBS)

The Wider Countryside Butterfly Survey is part of the UK Butterfly Monitoring Scheme (UKBMS). The WCBS is a standarised monitoring scheme for monitoring widespread butterflies in the UK. It is based on sampling along transects within 1km squares selected at random across the UK (stratified by BTO or BC regional networks). Additional UKBMS data from traditional fixed transect sites, often called 'Pollard Walks' is available within a separate dataset – see https://registry.nbnatlas.org/public/show/dr1206. The surveys are undertaken by volunteers and other recorders, who contribute their data free of charge. Where you use the information you must acknowledge the UKBMS using the following attribution statement: Contains UK Butterfly Monitoring Scheme (UKBMS) data © copyright and database right Butterfly Conservation, the Centre for Ecology & Hydrology, British Trust for Ornithology, and the Joint Nature Conservation Committee.