This sound effect can be found on The General Series 6000 Sound Effects Library, which was made by Sound Ideas.
Links:
https://soundeffects.fandom.com/wiki/Sound_Ideas,_ANIMAL,_CREATURE_-_GIANT_WING_FLAP,_BIRD,_FANTASY_01#Audio_Samples
Godzilla and his Titan allies battle three threats, the ancient SpaceGodzilla, the renewed threat of Apex and other rouge humans and Biollante and Dagahra, two Titans who are boundaries between nature and pollution. Godzilla tackles his darker instincts.
