The isabelline bush-hen, also known as Sulawesi waterhen or isabelline waterhen, is a large, up to 40 cm long, rufous and brown rail. The term isabelline refers to the colouration. It is the largest member of the genus Amaurornis. Both sexes are similar with olive brown plumage, pale green bill, greenish brown legs and rufous below.
Region
Wallacea (Sulawesi, Indonesia)
Typical Environment
Found across Sulawesi and some adjacent satellite islands where dense low vegetation meets water. It inhabits swamps, marsh edges, overgrown ditches, rice fields, forest streams, and secondary thickets. The species favors tangled undergrowth and tall grasses that provide cover for foraging and nesting. It will use disturbed habitats, provided there is thick cover and nearby shallow water.
Altitude Range
Sea level to 1200 m
Climate Zone
Tropical
Ease of Keeping
Beginner friendly: 1/5
This skulking rail is endemic to Sulawesi, Indonesia, and is the largest member of the genus Amaurornis. The name “isabelline” refers to its warm rufous-buff coloration. It is far more often heard than seen, giving loud, carrying calls from dense cover. Despite its secretive nature, it tolerates modified landscapes such as rice paddies and village wetlands.
Temperament
skulking and wary
Flight Pattern
short rapid wingbeats; reluctant flier that prefers to run into cover
Social Behavior
Usually encountered singly or in pairs, remaining concealed in dense grass and reedbeds. Nests are placed low in thick vegetation near water, with both sexes likely involved in incubation and chick care. Territorial calls are given most often at dawn and dusk during the breeding season.
Migratory Pattern
Resident
Song Description
Vocalizations are loud and abrupt, including series of harsh croaks and kek-kek notes that carry through thickets. Calls often come from deep cover and may be given antiphonally by a pair.