Bats are amongst our most fascinating and enigmatic wild animals. We still know very little about most of our species. What we do know however is that populations of all our commoner species have decreased greatly over the last 60 years. One species recently became extinct in Britain and others are now seriously endangered. The Herts and Middx Bat Group are working to further bat conservation in Hertfordshire and Middlesex. We also provide advice and information for householders and landowners and hope that you find our website a useful resource. Please don't hesitate to contact us if you have a bat related query.

PLEASE NOTE THAT AS OF 28 NOVEMBER 2012 THE HELPLINE NUMBER HAS CHANGED TO 07517 123200. This number should now only be used for bat welfare emergencies requiring swift intervention e.g. finding a bat in need of care. All other enquiries should be done by email. Thank you.

Nathusius pip

The bat pictured above is a Nathusius' pipistrelle

HMBG bat helpline number 07517123200

For non-urgent or general enquiries concerning the Group and bats please email us on:


A Bat's life: April

Bats are now active on all but the coldest nights. When there are insects flying they will be actively foraging. If there's a cold spell they will return to a torpid state until it's warm enough to feed again.

This a period of mating and the beginning of pregnancy for many adult female bats (through the re-activation of sperm stored since autumnal mating or by way of spring mating). April is a time of transition when bats often change their more settled winter hibernation sites for temporary roosts and when females begin to return to often long-established maternity roosts in which they form colonies.

If you have found a bat which you believe may require help (i.e. one that’s grounded, in the open during daylight hours, caught by a cat, or within the living area of your property) then please call us on 07517 123200 at the very first opportunity rather than using email. We can respond much quicker and we'll guide you through some immediate steps which will reduce your concerns and greatly increase the bat's chance of survival and recovery. Grounded bats in particular need protection from cats and inclement weather as soon as possible. If you find a bat flying around inside your property please refer to the ‘Need help with a bat?’ section of the website.


2014 Events:

Monthly Social Meeting: Thursday, 27th February 2014, 8:00pm

Regular monthly social event. More information to follow.

All welcome! See Events page for more information.