尾呼 散

Nicknamed "Okosan", San is a strange and hyperactive Fantail Pigeon, and also Hiyoko's classmate. Despite his odd obsession with pudding and general eccentricity, San is brilliant at most sports, and is the incredibly fast-footed captain of the school's track team. He is unable to speak human languages; speaking in in-game translated "coos" instead. The "pudding" he mentions frequently is apparently different from your run-of-the-mill varieties...

Based on the URL=http://clione.halfmoon.jp/hatoful-boyfriend/character/okosan.htmlofficial wesbite.