Pipistrelle bats are the smallest bat species in the Netherlands. They are very fast, tumbling through the air in many loops and bends. You find them just about everywhere in the Netherlands, from the Wadden Islands to the large cities. They hunt small insects in garden, forests, above water and around street lanterns. Just like serotines, common pipistrelle colonies are found in buildings - between cavity walls, under roof tiles, in attics and behind shutters.