 They prefer caves that maintain a steady temperature of between , and begins to suffer from hypothermia at ambient temperatures below .The roosts are commonly shared with numerous other species of bat, and the Wagner's mustached bats may account for only a small minority of the bats in any given cave.The bat echolocates using a rapid series of constant frequency pulses followed by longer frequency modulated sweeps, although contradictory estimates of ultrasonic frequency and range have been reported in different studies.