The rare Silver-spotted Skipper is extremely sensitive to small temperature fluctuations, a long-running study has revealed.
Species to look out for
The Cambridgeshire & Essex Branch has over 700 members and covers the administrative county of Cambridgeshire together with the Unitary Authority of Peterborough and the Watsonian Vice-counties of North Essex (VC19) and South Essex (VC18).
The Branch area includes the administrative county of Essex together with the London Boroughs of Barking & Dagenham, Havering, Newham, Redbridge and Waltham Forest, as well as the Unitary Authority of Thurrock.
If you live in the region and are a member of Butterfly Conservation you automatically become a member of the Cambridgeshire & Essex branch.
Submit a sighting
Use our new web form to tell us about your butterfly sightings
View the Cambridgeshire and Essex sightings reports.