National Bat Monitoring in Somerset

Each year members of the Somerset Bat Group help out with the National Bat Monitoring Program run by the Bat Conservation Trust.

Over the past years SBG members have contributed much time and effort to collect data for the following national programs:

Sunset-Sunrise Survey

Anyone can take part in these, and everyone is encouraged to!  Taking part in the Sunset-Sunrise Survey couldn’t be simpler, you don’t need any equipment or experience and you may not even need to leave your back garden! Simply spend the hour after sunset and/or the hour before sunrise in your garden or local open space and look for any bats or other nocturnal animals you can spot.
You can carry out your survey anytime from April to September. This period is when bats are most active.
Between June and August is the best time to see them swarming as they return to the roost.

  • You will need:  Survey form, Pencil/pen, Torch, Watch

NBMP Roost Counts

Counting the numbers of bats emerging from roosts at sunset on two evenings during the summer survey period (mostly June). – Click to see results

NBMP Hibernation Survey

Experienced bat workers count bats in hibernation roosts in January and February each year. – Click to see results

NBMP Waterway Survey

Recording how Daubenton’s bat populations are doing by walking a route along a 1km stretch of water randomly allocated on two visits in August. – Click to see results

NBMP Field Survey

Monitoring a randomly allocated 1km square on two evenings in July. – Click to see results

NBMP Woodland Survey

Monitoring Barbastelles at sites designated as Special Areas of Conservation (SACs)

National Nathusius’ Pipistrelle Survey

This project aims to determine the resident status, breeding status and migratory origins of Nathusius’ pipistrelle in Great Britain