Etymology and distribution of 鳥頭.

Toritou 【鳥頭】^{レベル1
Very rare}  The Japanese surnames etymology dictionary.

Ehime-ken . Occupation . Ehime-ken Seiyo-shi Nomura Town Tell that Mr. Doi, who was in the Warring States period in Kamada Castle in Toriokano, got from Saionhiro Saionhiro, a warrior of warring States and Azuchi-Momoyama era, by warfare in 1584 (Tensho 12). In interpretation by estimation, the soldier of the first element is "soldier", the head of the second element is "headgear". 土居 Doi reference.