The southern Marquesan reed warbler is a species of Old World warbler in the family Acrocephalidae.
Region
South Pacific, Marquesas Islands
Typical Environment
Confined to the southern Marquesas, this warbler occupies dense lowland and mid-elevation vegetation, including riverine thickets, secondary scrub, coastal groves, and coconut plantations. It often uses Hibiscus, Pandanus, and other native shrubs for cover. The species tolerates some disturbance and secondary growth but depends on areas with continuous dense foliage. Nests are typically placed in tangled vegetation near watercourses or in sheltered thickets.
Altitude Range
Sea level to 800 m
Climate Zone
Tropical
Ease of Keeping
Beginner friendly: 1/5
The southern Marquesan reed warbler is a relatively large Old World warbler endemic to the southern Marquesas Islands of French Polynesia. It favors dense thickets and secondary growth, where it skulks low and sings a rich, varied warble. The species is threatened by habitat alteration and invasive predators such as rats and cats. Conservation actions focus on habitat protection and predator control.
Temperament
shy and skulking
Flight Pattern
short rapid wingbeats, usually low over vegetation
Social Behavior
Typically found singly or in pairs, maintaining small territories during the breeding season. Pairs are believed to be monogamous, weaving cup-like nests in dense shrubs or reeds. Clutches are small, and both sexes participate in parental care. Outside breeding, it may join loose mixed flocks only rarely.
Migratory Pattern
Resident
Song Description
A rich, variable warble interspersed with chatters and scolds, delivered from within cover or from a low perch. Calls include sharp tcks and harsher churrs used in agitation. The song carries well in dense thicket habitat.
Plumage
Warm brown upperparts with slightly paler, buffy underparts and a whitish throat; feathers appear plain with minimal streaking. A distinct pale supercilium contrasts with the darker lores. The bill is long and slightly decurved, suited to probing foliage.
Diet
Primarily takes insects and other small arthropods such as beetles, caterpillars, and spiders. It gleans from leaves, probes into leaf clusters and bark crevices, and occasionally makes short sallies to catch flying prey. Small berries may be taken opportunistically when available.
Preferred Environment
Feeds in dense shrubs, along streamside vegetation, and at the edges of secondary forest and plantations. It works methodically through mid-level foliage and tangles, often staying concealed.
