Greater koa finch below. It had a thick black bill which allowed it to break open seed pods that were found in the trees. In historical times, its range was largely confined to the Kona District of the island of Hawaii, although it was observed in the Kīlauea area in 1895. It was much more widespread prior to the arrival of humans in Hawaii, and related species lived on other islands. In Kona, it co-occurred with the closely related lesser koa finch ("Rhodocanthis flaviceps"), and the Kona grosbeak. The lesser and greater koa finches were once thought by scientists to be the minimum
Acacia melanoxylon 20%. It may also be used for producing decorative veneers. The tree's twigs and bark are used to poison fish as a way of fishing. This tree can also be used as a fire barrier plant, amongst other plants, in rural situations Plain and figured Australian blackwood is used in musical instrument making (in particular guitars, drums, Hawaiian ukuleles, violin bows and organ pipes), and in recent years has become increasingly valued as a substitute for koa wood. Acacia melanoxylon Acacia melanoxylon, commonly known as the Australian blackwood, is an "Acacia" species native in South eastern Australia. The species is