Norfolk Bat Survey

Common Pipistrelle. Photograph by Amy Lewis

The Norfolk Bat Survey offers anyone in Norfolk (and parts of Suffolk) a unique opportunity to take advantage of recent advances in technology for automating the capture and analysis of acoustic data for bats. By doing so, you will help us rewrite our understanding of bats. In return for your help, we will let you know what species of bats were recorded.

Who can take part?

The focus of this project is Norfolk, but bat detectors are now available for use in the Suffolk Brecks and in the Waveney River Catchment. The project is for anyone who is able to collect a bat detector and requires three different points, ideally at least 200-metres apart, to be surveyed on consecutive nights within a 1-km square.

When to take part

Between mid-April and September.

How to take part

Choose a 1-km square you would like to survey and follow an e-mail link you will receive to book out a detector. We have set up a number of 'Bat Monitoring Centres' across the county, from which you can borrow equipment for a few days to take part in the survey. You can contact the survey organiser Hazel Evans (norfolkbatsurvey [at] if you have any questions on the project.

Results to date

786 1-km squares (15% of Norfolk) have been surveyed for bats since the start of the project in 2013. This comprises 2,653 complete nights of recording, which has resulted in the collection and analyses of over half a million bat recordings from across the county.

Further reading

Newson, S.E., Ross-Smith, V., Evans, I., Harold, R., Miller, R. & Barlow, K. 2014. Bat-monitoring: a novel approach. British Wildlife 25, 264-269.