The Wallacean island thrush, also known as the Sulawesi island thrush, is a species of passerine in the family Turdidae. It is found in Indonesia and Timor-Leste. It was formerly considered to be multiple subspecies of the island thrush, but was classified as a distinct species in 2024 by the IOC and Clements checklist based on morphological and phylogenic evidence.
Region
Wallacea
Typical Environment
Occurs in montane and submontane forests of Sulawesi and nearby Lesser Sunda islands extending east to Timor-Leste. It favors mature evergreen forest, mossy ridges, and forest edges, and may use adjacent secondary growth where cover remains dense. On smaller or drier islands it is mostly tied to higher, cooler elevations. It forages primarily on or near the ground in leaf litter but also visits fruiting trees in the midstory.
Altitude Range
800–3000 m
Climate Zone
Highland
Ease of Keeping
Beginner friendly: 2/5
Recently split from the widespread Island Thrush complex, the Wallacean island thrush was recognized as a distinct species in 2024 based on morphology and genetic data. It shows marked plumage variation across islands, from sooty to rufescent tones, which long obscured its true limits. Typically shy and terrestrial, it forages quietly on the forest floor. Its presence often indicates relatively intact montane forest habitats.
Temperament
shy and skulking
Flight Pattern
short rapid wingbeats with low, direct flights through understory
Social Behavior
Usually solitary or in pairs, becoming loosely gregarious where food is abundant. Territorial during breeding, with pairs nesting in a cup of twigs and moss placed in a shrub or low tree. Clutch size is small, and both parents attend the nest. Outside breeding, it may join mixed-species flocks at fruiting trees.
Migratory Pattern
Resident
Song Description
A mellow, fluty series of clear whistles delivered from a concealed perch, most often at dawn and dusk. Calls include a soft tchik or seep and a sharper alarm when disturbed.
