Related Clues:

• Word with "man," "cave" or "mobile"
• Mosquito-eating critter
• Flutter to be in
• Flying creature of the night
• Hanging mammal
• Insectivorous flying mammal
• Flier that sleeps upside-down
• Winged mammal in a cave
• Gotham City signal
• Mammal with membranous wings
• Flying night mammal
• Flying mosquito-eater
• It hits close to home
• Only mammal that can fly
• Ultrasound user