The Javan blue robin is a species of bird in the family Muscicapidae. It is endemic to the Indonesian island of Java. Its natural habitat is subtropical or tropical moist montane forests. The Sumatran blue robin was formerly considered a subspecies of M. diana, with both the Javan and Sumatran subspecies being grouped under the name Sunda robin.
Region
Java (Greater Sunda Islands)
Typical Environment
Occurs in subtropical and tropical moist montane forests across the mountains of Java. Favors dense, shady ravines, stream edges, and bamboo or shrub tangles with abundant leaf litter. Often keeps low to the ground or perches on low branches in quiet, mature forest. It avoids heavily degraded habitat but may use older secondary growth near intact forest.
Altitude Range
800–2400 m
Climate Zone
Highland
Ease of Keeping
Beginner friendly: 2/5
The Javan blue robin is a shy, understory insect-hunter of Java’s cool, mossy montane forests. Males are striking cobalt-blue above with pale grey underparts, while females are mostly brown with a bluish tinge to the tail. It was once lumped with the Sumatran blue robin under the name Sunda robin but is now recognized as a distinct species. Its clear, melodious whistles often reveal its presence before the bird is seen.
Temperament
shy and skulking
Flight Pattern
short rapid wingbeats through understory
Social Behavior
Typically solitary or in pairs, especially during the breeding season. Territorial in suitable forest patches, with males singing from low, concealed perches. Nests are cup-shaped and placed low in banks, roots, or dense shrubs near streams; both parents care for the young.
Migratory Pattern
Resident
Song Description
A clear, sweet series of fluted whistles and short phrases delivered at measured pace. Calls include thin, high tseep notes given from cover, especially at dawn and dusk.
