means A small wind instrument, typically egg- or vessel-shaped and made of clay or ceramic, played by blowing across a mouthpiece and covering finger holes to change pitch.

from From Italian 'ocarina,' a diminutive meaning roughly 'little goose,' from 'oca' (goose) — itself from Late Latin 'auca,' a contraction of an unrecorded form tied to Latin 'avis' (bird). The name reportedly came from the instrument's plump, beaked silhouette, said to resemble a little goose. So the link to birds is baked right into the word, even if 'ghost of a bird you never met' is the essence's own embellishment.