Captive Noctilio labialis (Microchiroptera) were induced to catch floating insects and small pieces of fish muscle tissue projecting above the surface of a large pool. This bat, previously believed to feed entirely on aerial insects, captures aquatic food by dipping its feet into water in a manner similar to N. leporinus, although the feet of N. labialis are not enlarged for this purpose. Small bits of food on the water's surface were echolocated at a range of about 1 m. At low cry repetition rates the most common orientation cry begins with an almost constant frequency of about 70 kHz which is then frequency modulated to about 40 kHz. Cry repetition rates increase to about 200 per s when capturing food.
ASJC Scopus subject areas
- Ecology, Evolution, Behavior and Systematics
- Animal Science and Zoology