Ice bats were a breed of winged Rahi from Ko-Metru. They were known for their destructive flights through knowledge towers.[1, 2] Airship pilots were reluctant to fly over Ko-Metru because of their presence.
Ice bats were nasty flying creatures which perched on the tops of Knowledge Towers. They resisted all efforts by Ko-Matoran and Vahki to drive them away. While not particularly dangerous to Matoran, they did have a habit of flying into observatories and smashing valuable equipment as they tried to find their way back out. They also posed a hazard to Matoran airships, which is why the vessels tended to avoid passing over Ko-Metru.
Ice bats were always regarded as pests. Crystal climbers living among the knowledge towers fed on ice bats which nested high in the knowledge towers. Ice bats were the preferred prey of crystal climbers.