Bicolored roundleaf bat

The bicolored roundleaf bat, Hipposideros bicolor, is a leaf-nosed bat of Southeast Asia, found in Indonesia, Malaysia, Singapore, the Philippines, Thailand and Timor-Leste at elevations up to 600 metres. Coenraad Jacob Temminck described it in 1834 and first placed it in Rhinolophus. It roosts in caves, rock crevices and tunnels among lowland forest, in groups of up to 150 that need darkness and high humidity, and eats mostly small winged insects, locating them by echolocation. Its fur turns orange in the bleaching fumes of a cave and stays light brown in a well-ventilated roost. Researchers in West Malaysia found two look-alike groups that differ in size and call frequency. It is very sensitive to deforestation for housing and oil palm, though the IUCN lists it as Least Concern.