The Mammal Society’s mission is to achieve the effective conservation of the mammals of the UK. The restoration of thriving mammal communities not only contributes to more sustainable ecosystems but engages people with the natural environment. Established in 1954, we provide a national voice for mammal conservation and advise policy makers, practitioners and wildlife enthusiasts – many of whom have been responsible for collecting the information presented in this Atlas.Unlike many charitable organisations monitoring British wildlife, the Mammal Society receives no central government funding for our core work. Our activities to halt the decline of threatened species, monitor their conservation status, raise awareness of mammal conservation issues and advise on issues affecting British mammals, depend entirely on the generosity of our supporters.

A culmination of many years’ worth of work in compiling data from records made in a variety of ways; from the old-fashioned method with pen and paper to taking advantage of modern developments in ‘citizen science’.

• Foreword Acknowledgements Introduction Methods -Data collection -Distribution maps -Record coverage across the UK Species accounts Cetaceans known in Britain and Ireland only from strandings Vagrant species and those without established populations in the UK Feral colonies and populations

The Mammal Society’s mission is to achieve the effective conservation of the mammals of the UK. The restoration of thriving mammal communities not only contributes to more sustainable ecosystems but engages people with the natural environment. Established in 1954, we provide a national voice for mammal conservation and advise policy makers, practitioners and wildlife enthusiasts – many of whom have been responsible for collecting the information presented in this Atlas.Unlike many charitable organisations monitoring British wildlife, the Mammal Society receives no central government funding for our core work. Our activities to halt the decline of threatened species, monitor their conservation status, raise awareness of mammal conservation issues and advise on issues affecting British mammals, depend entirely on the generosity of our supporters.

A culmination of many years’ worth of work in compiling data from records made in a variety of ways; from the old-fashioned method with pen and paper to taking advantage of modern developments in ‘citizen science’.

• Foreword Acknowledgements Introduction Methods -Data collection -Distribution maps -Record coverage across the UK Species accounts Cetaceans known in Britain and Ireland only from strandings Vagrant species and those without established populations in the UK Feral colonies and populations

The Mammal Society’s mission is to achieve the effective conservation of the mammals of the UK. The restoration of thriving mammal communities not only contributes to more sustainable ecosystems but engages people with the natural environment. Established in 1954, we provide a national voice for mammal conservation and advise policy makers, practitioners and wildlife enthusiasts – many of whom have been responsible for collecting the information presented in this Atlas.Unlike many charitable organisations monitoring British wildlife, the Mammal Society receives no central government funding for our core work. Our activities to halt the decline of threatened species, monitor their conservation status, raise awareness of mammal conservation issues and advise on issues affecting British mammals, depend entirely on the generosity of our supporters.

A culmination of many years’ worth of work in compiling data from records made in a variety of ways; from the old-fashioned method with pen and paper to taking advantage of modern developments in ‘citizen science’.

• Foreword Acknowledgements Introduction Methods -Data collection -Distribution maps -Record coverage across the UK Species accounts Cetaceans known in Britain and Ireland only from strandings Vagrant species and those without established populations in the UK Feral colonies and populations