The Brown Long-Eared Bat is a small species of bat found across Europe and parts of Asia. It is characterized by its large ears, which can be longer than its body, and its brown fur. This bat typically roosts in trees, buildings, and caves, often in small groups. These bats are nocturnal and primarily feed on insects, using echolocation to navigate and hunt in the dark. The Brown Long-Eared Bat is known for its gentle flight and is often seen fluttering slowly through the air. Conservation efforts are important for this species due to habitat loss and declining populations.