Unfortunately, the preferred habitat of the celestial monarch is highly threatened. Widespread deforestation in the Philippines, particularly in the more easily accessed lowlands, has vastly reduced the extent of original forest, and the remaining patches of forest continue to be threatened by further logging and potential mining (3). Further threats to the celestial monarch’s lowland forest habitat come in the form of road development, forest clearance so that exotic trees can be planted for paper production (3), and uncontrolled settlement by the rapidly growing human population (3) (5).
The subspecies Hypothymis coelestis rabori is now considered to be extremely rare; on Negros, where forest cover was reduced by 96 percent by the late 1980s, the celestial monarch has not been seen recently, and may be extinct. Surveys to find this subspecies on the other island it inhabits, Sibuyan, between 1989 and 1992, were also unsuccessful (2).