According to "Genpei Seisui Ki" (Rise and Fall of the Minamoto and the Taira clans), a tale of military affairs during the Kamakura period, Prince Shotoku changed into a hawk to fight the Teratsutsuki, and since then Teratsutsuki no longer made its appearance.
鎌倉時代の軍事物語「源平盛衰記」によると、聖徳太子は鷹になって寺つつきに対抗したところ、寺つつきは二度と現れなくなったという。