Bats have long been shorthand for darkness, caves and haunted houses in film and animation, so a realistic bat sound effect is a staple of sound libraries used by video editors and creators. Online, short animal clips like this one circulate on soundboards for Halloween projects, horror shorts, pranks and reaction videos, where a few seconds of squeaking instantly sets a spooky mood without showing anything on screen. Because the sound is instantly recognisable and needs no explanation, it remains useful year after year, especially each autumn when spooky content peaks.