Hawaiʻi creeper is able to climb up and down trees. It uses its short, sharp beak to probe bark for insects residing underneath. If available, it will sip nectar from koa ("Acacia koa") or ōhia lehua ("Metrosideros polymorpha"). The breeding season of the Hawaii creeper lasts from April to July, during which female birds lay one to three eggs. Nests are hidden in a tree cavity or built on a high branch in either a koa ("Acacia koa") or a ōhia lehua ("Metrosideros polymorpha"). Eggs hatch after around thirteen days. The Hawaii creeper was put on the endangered species list in 1975;
Koa people their territory. In 1998 grazier Noel Kennedy applied to the Federal Court to have his property Castle Hill declared to be free of native title. This was challenged by the descendants of the Koa the following year, in a counterclaim for native title to the Castle Hill Pastoral Holding and the Bladensburg National Park in the Shire of Winton. In mid-2002 a Federal Court declared that the Koa claim did not apply to Kennedy's pastoral lands because the Koa could not demonstrate continuity of cultural practices in that area over the last half-century. In 2015, a further claim to title