This sound effect can be found on The General Series 6000 Sound Effects Library, which was made by Sound Ideas. It includes PSEL, ANIMAL-BIRD 1 in a low pitch and it is also the same track as Sound Ideas, MONSTER, FANTASY - LARGE CREATURE: SCREECHING ROAR 02. It is the seventh sound in Hollywoodedge, Elephant Tiger Combo PE980903. Links: https://www.audiomicro.com/large-animal-roar-creature-royalty-free-stock-music-887451 https://soundideas.sourceaudio.com/track/7620207 https://soundeffects.fandom.com/wiki/Sound_Ideas,_ANIMAL,_CREATURE_-_LARGE_ANIMAL_ROAR_02#Audio_Samples