Egyptian fruit bat their days roosting in trees or caves, often with large groups of other bats, sometimes numbering in the thousands. They emerge from the roost to forage for food in the late evening, and return just before dawn. They hang upside down, with their wings folded closely around their bodies. Egyptian fruit bats, along with other species in the genus "Rousettus", are the only megachiropterid bats to use echolocation, which they accomplish by emitting a series of sharp clicks with their tongues. The clicks are normally slow and constant, but these clicks speed up dramatically when the bats approach an object.
Long-legged bat family Phyllostomidae that use low-intensity “whispering” echos, the Long-Legged Bat has been shown to produce high-intense echolocation calls to detect its prey. M. macrophyllum will adjust the intensity of its calls depending on the environment that it’s in. When in areas with high acoustic clutter, the bats will decrease their signal intensity, while in more open areas, the bats will increase their signal intensity. By increasing call intensity in a more open environment, this allows these bats to have a broader detection range for food. Average intensity output has been shown increase by 11 dB, corresponding to a 4x amplitude