Welcome to the Essex Bat Group website

If you find a bat in need of rescue please click on the Bat Rescue tab above and you will find contact details and advice.




The latest distribution maps for all Essex species are now available in the Bats of Essex section.


What are bats up to in the Winter?

October and November

Whilst the Autumn mating season continues, bats increasingly show interest in hibernation sites.  They take advantage of warm nights to feed ensuring adequate energy reserves for the winter months when they will be hibernating.  During cold spells, when food is scarce, they begin to spend periods in torpor to conserve energy.  It’s a time of year where balance and judgement are key to survival.

December through to February

Bats are hibernating to ensure that they survive the winter when there are not enough insects to eat.  Some bats hibernate in trees and caves, but several species will use cold parts of buildings.  Several of these sites have been created to afford more roosting opportunities.   Members of the Bat Group who hold appropriate Natural England licences visit hibernation sites over the winter to record species and numbers.   These visits offer a valuable insight in to protecting hibernation bats and are used to determine successful approaches to creating and enhancing hibernacula.   However, visits must be carefully regulated and limited to minimise disturbance, as disturbed bats may be unable to replace the energy they use waking and warming from a torpid state.

If you find a grounded bat or are concerned about a bat’s welfare, then please refer to the Bat Rescue tab above.


Who are Essex Bat Group?

We are an active voluntary group passionate about the conservation of bat species, their roosts and foraging habitat within Essex, UK.  Our activities include survey, research, rescue and care and providing advice and information.  More details are provided under the ‘About’ tab.

AP01Hatfield Forest – one of the best sites for bat diversity in Essex and a site where we are actively involved in surveys (image copyright: A Palmer)