Wind Fish

The Wind Fish is a creature that sleeps in a giant egg nestled in the crater at the top of Koholint Island. At the end of the game, when Link plays "The Ballad of the Wind Fish", the egg opens to reveal a whale with wings, and the island vanishes, leaving Link floating in the sea and watching the Wind Fish fly away. Background supplied by the owl make it clear that the island has disappeared because it was all the dream of the Wind Fish; once he is awoken, it ceases to exist.

An owl statue outside the Moblin's Cave in this game reads: "The Wind Fish in name only, for it is neither."