 Fruit, seeds, flowers and nectar forms around half the diet based on direct observation, with the species observed feeding on 15 species of plant.Endemic mulberries ("Morus boninensis") are a favoured food, but a range of fruits and flowers are fed on, both species native to the island and introduced.Among the natives fed on other than mulberries are "Rhaphiolepis", "Leucaena", and "Solanum nigrum".