UK Butterfly Monitoring Scheme (UKBMS)

The UK Butterfly Monitoring Scheme (UKBMS) generates butterfly count data that is used to assess trends in the abundance of butterflies within the United Kingdom and for conservation policy and research. This dataset includes records from traditional fixed transect sites, often called 'Pollard Walks'; data from the Wider Countryside Butterfly Survey is excluded and available within a separate dataset – see https://registry.nbnatlas.org/public/show/dr1383

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.