Once serving as the last line of defence for Britain during World War II, these small structures may appear fairly unassuming. But, to the likes of nathusius pipistrellle bats, they're the perfect place to call home.
Pillboxes for pipistrelles
With the loss and degradation of the UK’s natural habitats, canalside buildings such as pillbox structures provide safe havens for many vulnerable species, including the nathusius pipistrelle bat.
High levels of deforestation across the UK means bats now struggle to find suitable spaces to rest and roost. The pillbox provides plenty of dark, sheltered space and crevices, perfect for growing families.
After removing debris, litter and brambles, our teams fitted steel doors to the entrance and metal grilles to the small slot openings, to prevent bats from being disturbed.
Bat boxes were secured to the interior walls, and a rear hatch added to allow bats (and any bird species that might also benefit from these habitats) to safely come and go as they please.
Volunteers installing bat boxes in a pillbox
A practical place in a prime location
But the pillbox isn't just a safe roof over their heads. This relic of the war also provides the cover bats need in a prime location.
Like all 18 species of bat in the UK, nathusius pipistrelles eat insects. With their preferred habitat location close to water and surrounded by plant life, the pillbox boasts an ‘all you can eat' diner option right on their doorstep.
Meanwhile, our linear canal network provides a unique, natural passage for these small mammals to bypass the perils of our roads and travel safely in an increasingly fragmented countryside.
More renovations for more mammals
Many of our 200-year-old tunnels, bridges, buildings, and aqueducts are now home to a variety of bat species. We take extra care when working with any of our heritage structures or trees in case bats, which are protected by law, are present.
So far, our ecologists and volunteers have improved at least six pillboxes along our waterways and have plans to restore many more.
Our canals and their infrastructure are uniquely positioned to help tackle the UK's biodiversity crisis. Repurposing these relics is just one action we're taking in helping nature to thrive again.
Last Edited: 19 December 2022
Sign up to our monthly newsletter and be the first to hear about campaigns, upcoming events and fundraising inspiration