Hollow trees, caves, piscivore, can eat aquatic insects. Observed in groups larger than 30 individuals in Brazil (Barquez 1999). They roost near streams, coastal marine habitats, major river basins, or other moist places. Bachelor males roost apart from females. Males residing with female groups stay for two or more reproductive seasons (Mulheisen and Berry 2000). Females bear a single young each pregnancy. This species tends to have pregnancies occuring from September until January, and lactation is first seen in November and continues until April. This is a general pattern, however, and it can vary with geographical location. Reproduction corresponds to seasons of greatest food availability (Mulheisen and Berry 2000).