 In 1995 they were able to show that it was indeed a white-eye (family Zosteropidae), and closely related to the golden white-eye and the white-eyes of the genus "Rukia" of Micronesia.The molecular evidence was supported by behavioural similarities to the white-eyes, such as the highly social allopreening and maintaining close contact when roosting.There are two subspecies of Bonin white-eye, the extinct nominate, formerly found in Mukojima and Chichijima, and the southern subspecies, "A. f. hahasima", of Hahajima.