Family: Paridae (Tits and chickadees)

Authority: (Ijima, 1893)

Red List Category

Criteria: B1ab(ii,iii,v)+2ab(ii,iii,v)

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Justification of Red List category
This species has a very small range, split into three separate subpopulations. This species is considered to be declining as a result of habitat loss, and may also be being threatened by invasive species. Therefore, the species is precautionarily listed as Endangered, though further information regarding the impact of threats on the species may mean this warrants revising in the future.

Population size: 2900-3600 mature individuals

Population trend: decreasing

Extent of occurrence (breeding/resident): 1,100 km²

Country endemic: yes