Bats do a very useful job - along with swifts, of course - in consuming huge numbers of insects many of which would otherwise make our lives a misery and damage our garden flowers or farm crops. But many species of bat are seriously endangered, often (same as swifts) because of lack of accommodation, as older buildings are put to better use, demolished or improved.
But (again, like swifts) you can help! Barbastelle are a woodland species and the The Vincent Wildlife Trust has established a project to improve understanding of colony distribution There are opportunities for volunteers to collect baseline activity data using acoustic methods and also as base coordinators. The information collected may also identify woodlands containing previously unknown colonies.
Wiltshire is one of four areas chosen for this and there is a VWT webpage here where you can find all the information you might need.
Meanwhile, you can learn more by attending a Zoom talk this Wednesday 31 March, for which go to https://www.eventbrite.co.uk/e/139729983141 (where there's an even more flattering photo).
The pages now display photos of live moths taken by Andrew Graham. This one, the Puss Moth, looks very soft and cuddly.