This sound is from Sound Effects - The Guardian Legend - Sound Effects (NES)

VFX involves the integration of live-action footage and CGI elements to create realistic imagery. VFX uses computer-generated imagery (CGI) and generated-imagery (digital or optics, animals or creatures) which look realistic but would be dangerous, expensive, impractical, time-consuming or impossible to capture on film.
See also: Academy Award for Best Visual Effects, Legend of the Guardians: The Owls of Ga'Hoole, The Movies, Animal Logic, Lola Visual Effects, Mowgli: Legend of the Jungle.