Need help with a bat?

Follow our advice

or call us on 0345 1300 228

National Bat Monitoring Programme Annual Report 2016

The National Bat Monitoring Programme (NBMP) is an annual series of bat surveys undertaken by thousands of dedicated volunteers, which allow us to monitor changes in British bat populations. The data we collect are used by the Government and conservation organisations to monitor the health of our environment, inform policy and improve the conservation of bats.

This report provides population trends for 11 of Great Britain's 17 resident bat species derived from data collected up to and including summer 2016. Trends are provided at GB-level and also at country-level where sufficient data are available (for 11 species in England, three species in Scotland and seven species in Wales; we have insufficient data to provide trends for Northern Ireland at present). This report also provides information on our survey methods.

The next set of bat population trends, incorporating data collected up to and including summer 2017, are due to be published in May 2018.

Brown long-eared bat (Hugh Clark)

Key sections of the report:

Contents page

Summary of findings


Species Populations Trends


Click here for a PDF version of this report 


Official Statistics: These statistics have been produced to the high professional standards set out in the Code of Practice for Official Statistics.

This report was compiled by Katherine Boughey, Philip Briggs and Becky Wilson. Statistical analysis was completed by Steve Langton.

The report should be cited as: Bat Conservation Trust, 2017. The National Bat Monitoring Programme. Annual Report 2016. Bat Conservation Trust, London. Available at

The National Bat Monitoring Programme is run by the Bat Conservation Trust, in partnership with the Joint Nature Conservation Committee, and supported and steered by Natural EnglandNatural Resources WalesNorthern Ireland Environment Agency, and Scottish Natural Heritage. The NBMP is indebted to all volunteers who contribute data to the programme.

Bat Conservation Ireland contributes Northern Ireland bat records collated by the Irish Bat Monitoring Programme which is funded by the National Parks and Wildlife Service of the Department of Arts, Heritage and the Gaeltacht, Republic of Ireland and Northern Ireland Environment Agency. Data are shared on the NBN Atlas and GBIF.

  JNCC logo      
SNH logo   NIEA logo

You should follow us
Bookmark and Share

Subscribe today to receive the latest on bats and BCT direct to your inbox.

Bat Helpline

0345 1300 228