Oʻahu nukupuʻu bill to pluck insects found underneath tree bark, the Oahu nukupuu fed on insects on flowering trees such as the koa ("Acacia koa") and ohia ("Metrosideros polymorpha"). These trees attract a large amount of insects due to their nectar-filled flowers. The Oahu nukupuu fed on koa in high elevation forests and fed on ohia in low elevations. The species was believed to have vanished as the spread of disease occurred, killing off nukupuu populations across the islands. In order to control the rat population in the sugar cane fields, mongooses were introduced to Hawaii and were suspected to be predators
Koa Kannon Koa Kannon The refers to a statue of Kannon, the bodhisattva of compassion, located atop Mount Izu in Atami, Shizuoka Prefecture, as well as to the temple, formally a religious corporation called the Reihaizan Koa Kannon, which is dedicated to it. Koa Kannon is from the same lineage as the Hokke Shu Jin-Monryu, a breakaway sect of Nichiren Buddhism based in Sanjo in Niigata Prefecture, but it is not formally affiliated with them and is the only independent Buddhist temple in Japan with its own unique history and rites. The temple admits all worshipers regardless of their religion. The temple