Daubenton's Bat

Hunts low over still or slow-moving water such as canals, rivers and lakes across Europe and temperate Asia, skimming the surface for emerging insects, and can be picked out at dusk by its fast, fluttering flight just centimetres above the water. It is almost entirely nocturnal, so the best views come at twilight in summer near water with overhanging trees, ideally with a bat detector tuned to its high-frequency calls. It roosts in tree hollows, bridges and bat boxes close to its foraging waterways.