 Slightly finer material is used to line the inside of the nest.The eggs of the Bonin white-eye measure 19.5–20.5 mm × 15–15.8 mm (0.77–0.81 in × 0.59–0.62 in) and are greenish-blue spotted and blotched with brown.The usual clutch size is around two eggs, which is a small clutch for a Japanese bird.