Mothra Roar is a sound effect from TV shows, movies, and others. Mothra's chirps are a combination of heavily sped-up Anguirus roars and various Rodan screeches, including the raw material that would be used to make Maguma's roars. This is most evident during a scene in Godzilla vs. Mothra where Mothra is hit by artillery and moans in pain, emitting a sound that is almost identical to Anguirus' roar. According to the "Godzilla Quiz" included with the home video release of the Monster Planet of Godzilla short film, the Japanese onomatopoeia for Mothra's cry is "squeak" (キィー kyī). In Godzilla: Rulers of Earth, the imago Mothra's cries are rendered as "CHEERNT." Links: https://www.youtube.com/watch?v=YyAPlEMNIII https://soundeffects.fandom.com/wiki/Mothra_Roar#Audio_Samples