Yorkshire Butterfly Conservation - Field trips, flight times, photographs, and other resources. Upper Thames Branch of Butterfly Conservation - Serves Bucks, Berks, and Oxfordshire, England. News, field trips, sightings, photographs, and flight data. British Butterfly Conservation Society - Dedicated to saving wild butterflies, moths and their habitats throughout the UK. Gloucestershire Branch of Butterfly Conservation - Includes committee members and a guide to the butterfly species and habitats of the county. Butterfly Monitoring Scheme - Provides details on changes in abundance at selected monitored sites throughout the United Kingdom, and describes national fluctuations and trends. Includes data and results, and information about species and habitats, methodology, news, contacts, and links to related sites. Bedfordshire & Northamptonshire Butterfly Conservation - Features sightings, pictures and lepidoptery news. Includes upcoming events and newsletters. British Butterflies - Photographs and descriptions of British butterflies by Steven Cheshire. Butterflies of Northamptonshire - Annotated list of 37 species, with photos of most. Sarah Walters - Butterflies - Photographs of British butterflies. UK Butterflies - Photographs, food plants, and flight charts of all species regularly found in the United Kingdom.