Blind (Ex): Zubats have no eyes and cannot see, as such they automatically fail any spot check they would be forced to make, cannot read, and are immune to gaze attacks of all types. However, a Zubat has exquisite hearing and constantly emits an ultrasonic cry that functions as sonar. A Zubat automatically detects any corporeal creature within 120 ft., and can target any creature that does not successfully Move Silently in its presence as if it could see them. Zubats gain a +8 racial bonus to Listen checks. The sample Zubat has a save DC of 12 for Supersonic Cry.