The kiwikiu is only found on Maui at elevations of about 1,000 to 3,000 feet in mesic and wet forest within a range of only19 square miles. Sexes are alike with olive green and yellow bodies. Their insectivorous diet is aided by their large hooked upper bill which enables them to peel bark off trees and in search of beetle larvae and other insects. The name kiwikiu (‘Kiwi’ meaning curved, and ‘Kiu’ meaning secretive or cold breeze) was given by the Hawaiian Lexicon Committee in 2010.