This species may be extinct on Guam. Historically it was found island-wide. This bird was last found on Guam in mature limestone forest. Nothing is known about periodicity in this diurnal species. Zosterops c. conspicillata does not migrate.
Nothing is known of cover or shelter requirements for the bridled white-eye on Guam.
Little is known of the reproductive site requirements for Zosterops c. conspicillata. Nests reported in the literature were located relatively low in forest areas. Little is known of the reproductive behavior of the Zosterops c. conspicillata on Guam. It is not known whether both parents participate in nest building, incubating, brooding or feeding of young. No information is available on incubation, nesting or fledgling periods.