The Black Kite(M. migrans) is a medium-sized bird of prey in the family Accipitridae, which also includes many other diurnal raptors. Unlike others of the group, Black Kites are opportunistic hunters and are more likely to scavenge. They spend a lot of time soaring and gliding in thermals in search of food. Their angled wing and distinctive forked tail make them easy to identify.

A branch of the warm Kuroshio Current warms the bay, allowing it to host marine organisms typical of more southerly regions and giving a mild climate to the land bordering the bay. The maximum depth of the bay is about 1500 meters.