Distribution and Habitat
The Invisible Rail is native to the remotest and densest parts of the sago swamp forests and wetlands of Halmahera, Indonesia, favoring the edge habitats where swamp meets forests and clearings. Specific locales in that region where it has been sighted are Fanaha, Gani, Pasir Putih, Sondo, Tewe, and Weda Bay. There are also local reports of it living in the Kao sago swamp. It is classified as vulnerable with an estimated population of 2500–9999. Causes of this vulnerability are ongoing habitat loss from agriculture and aquaculture, fragmentation, predation, small population size, limited range and hunting in some areas. Its stealthy, skulking behavior and dense habitat make it especially difficult to study in the wild. Consequently, it is poorly known and may even be more numerous than believed. Much of these sago swamps have been destroyed through sago extraction, predation, irrigation, conversion to wet rice fields, and fishpond development. Natives hunt this bird with snares and dogs.
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