What did the Honshu wolf eat?

The Honshu wolf (Canis lupus hattai) was an extinct subspecies of wolf that once inhabited the island of Honshu in Japan. Its diet primarily consisted of deer, such as the sika deer and the Japanese serow, as well as other ungulates like wild boar and goats. It also likely preyed on smaller mammals such as hares, rabbits, and rodents. Additionally, it may have occasionally consumed fruits, berries, and other plant matter to supplement its meat-based diet.