 It also has a short song that sounds like “cheer-wee”.The Maui parrotbill is an insectivore.It uses its large beak and powerful jaw muscles to remove bark and wood from small trees and shrubs such as "ākala" ("Rubus hawaiensis"), "kanawao" ("Broussaisia arguta"), and "ōhia lehua" ("Metrosideros polymorpha"), eating the insects underneath.