Shadhavar
Shâd'havâr (Arabic: شادهافار (Šādhāfār)) or Âras (آرس) is a legendary creature from medieval Muslim bestiaries resembling a unicorn. Al-Qazwini said that it lives in the country of Rūm (Byzantium) and that it has one horn with 42 hollow branches which, when the wind passes through them, produces a pleasant sound that makes the animals sit around and listen.