The Bornean forktail is a small, black and white bird, with a long and deeply forked tail, in the Old World flycatcher family. It is endemic to the Southeast Asian island of Borneo, where it occupies streamside habitats in montane primary forest.
Region
Borneo
Typical Environment
Endemic to the island of Borneo, occurring in Malaysian states of Sabah and Sarawak, Brunei, and Indonesian Kalimantan. It inhabits shaded, rocky streams and rivers within primary and mature secondary montane forest. Birds favor clear, fast-flowing water with boulders, cascades, and fallen logs. They keep close to riparian cover and are rarely far from water. Human disturbance and sedimentation can reduce suitable habitat along streams.
Altitude Range
300–2000 m
Climate Zone
Tropical
Ease of Keeping
Beginner friendly: 1/5
This striking black-and-white forktail is confined to the island of Borneo, where it haunts clear, rocky forest streams. It constantly flicks and fans its long, deeply forked tail while foraging on boulders and along the water’s edge. It is often heard before seen, giving sharp, high calls over rushing water. Nests are typically placed on ledges, under roots, or near waterfalls, built from moss and plant fibers.
Temperament
solitary and territorial
Flight Pattern
short rapid wingbeats low over water
Social Behavior
Typically seen alone or in pairs defending linear stretches of stream. Breeding pairs build cup-like nests of moss and rootlets on protected ledges, banks, or behind waterfalls. They wag and fan the tail frequently and perch on boulders to scan for prey.
Migratory Pattern
Resident
Song Description
Vocalizations include sharp, high-pitched whistles and thin, piping notes that carry over rushing water. Calls are often given during short flights along the stream and while foraging. Song is simple and repetitive compared to many forest passerines.
