Sadly, many bat species around the world are vulnerable or endangered due to loss of habitat, food or roosts, plus pollution, disease, hunting and killing. British bat populations suffered huge declines last century.

We monitor 11 of the UK's 17 breeding bat species and our work has shown that the majority of British bat species are now stable or recovering slowly, but there is too little data on some at-risk bat species. We need more research, strong enforced laws, good land management and education, to ensure bats thrive as a vital part of our natural heritage: