Azuma Kagami, the offi cial history book compiled by the Kamakura shogunate, has many records of bizarre behavior of various organisms.Such records were kept because unusual natural phenomena including the behavior of organisms, which occurred around the Kamakura shogunate,were believed to be omens or cautions from heaven and gods or ancestors for future events or terrible disasters. Doves were one of the mostfrequently recorded animals in Azuma Kagami and have been and still are regarded as divine messengers of Hachiman. Doves were both auspicious and evil omens. In the Kamakura era of Minamoto no Yoritomo, we can see two good omens for the Kamakuraarmy signifi ed by doves in Azuma Kagami. When central fi gures of the Taira clan were drowning themselves in the last instance of Battle of Danno-ura, it is said that two doves were fl ying over the Tairaʼs ship. In the Battle of Oshu （between the Kamakura shogunate and Oshu Fujiwara）, abanner on which two doves were embroidered was brought from Kamakura to Oshu. Conversely in the era of Minamoto no Yoriie and Minamoto no Sanetomo, doves were bad signs. About two months before the forcedabdication of Yoriie, carcasses of doves were found three consecutive times in Tsurugaoka Hachimangu. Just before the assassination ofSanetomo, a gokenin had a dream in which a dove was killed. On the day Sanetomo was assassinated, a dove repeatedly twittered. After the death of Sanetomo, almost no records of doves were kept in Azuma Kagami. Thus doves were strongly linked to three shoguns ofSeiwa Genji. Doves were given the role as divine messengers of auspicious or evil omens from Hachiman to Genji in Azuma Kagami.