Ehecatl is the Aztec word for "wind". The wind god Quetzalcoatl-Ehecatl is often depicted as a human figure with a pre-tied beak mask. Another characteristic feature is his conical headdress. Quetzalcoatl, who was already worshipped as an important deity in the precursor cultures of the Aztecs, the cultures of Teotihuacan and Tula, was apparently only depicted in his aspect as the wind god Ehecatl in the Aztecs in the Late Postclassic period with a beak mask and conical hat. (M.Gaida 2003)