The United Kingdom is home to 17 species of bats, and Greater London to more than 6. Walking or cycling home from work or college at dusk you might well see them hanging out in trees, parks, woodlands and other greenspaces. 3 bat species can be spotted hunting for insects – each adult bat catching up to 3000 – at London Wetland Centre in Barnes (SW13) and this summer you can join one of their Big Bat Walks to learn about them from an expert and to see these beautiful creatures in action. Details here. You can also learn more about London’s bats from the excellent London Bat Group including where you are likely to see different species.