Somerset Otter Group facebook https://www.facebook.com/groups/1766109836946606

Somerset Environmental Record Centre http://www.somerc.com/

Greater Bristol Otter Group http://bristolottersurvey.wixsite.com/greaterbristolotters/about_us

YACWAG, Host for North Somerset Otter Group http://www.yacwag.org.uk

Cardiff University Otter project http://www.cardiff.ac.uk/otter-project

Somerset Wildlife Trust http://www.somersetwildlife.org

Somerset Mammal Group  http://www.somerset-mammals.org/

Devon Mammal Group http://www.devonmammalgroup.org/