This forest bird is endemic to Tinian. Juveniles have a yellow bill base and buff tips on the wing bars and rump, which distinguish them from adults.
Juveniles have a yellow base to the bill and buff tips to the wing bars and rump. Adults are described with a gray bill base and white tips in those areas.
It is a forest bird endemic to Tinian. A 2006–2007 mark-recapture study estimated annual adult survival at 0.89, but the authors cautioned that this could be an overestimate because younger birds are harder to capture or observe.
An extinction-risk assessment has not been added yet.