The wedge-tailed jery is a small bird endemic to the east of Madagascar. The species has been the cause of some taxonomic confusion, it was originally placed with the jeries in the genus Neomixis (Cisticolidae) before being placed in its own monotypic genus Hartertula, but still considered close to Neomixis. Recent research indicates it is part of an endemic Malagasy radiation currently known as the Malagasy warblers.
Region
Eastern Madagascar
Typical Environment
Occurs in the island’s eastern humid evergreen forests, from lowland rainforests to mid-elevation montane forest. It favors dense understory and vine tangles, forest edges, and secondary growth where cover is abundant. The species is typically encountered in thickets, along forest trails, and in bamboo patches. It readily joins mixed-species flocks, especially with other Malagasy warblers and tetrakas.
Altitude Range
Sea level to 1800 m
Climate Zone
Tropical
Ease of Keeping
Beginner friendly: 1/5
The wedge-tailed jery is a Malagasy warbler confined to the humid forests of eastern Madagascar. It was once grouped with the jeries (Neomixis) but is now placed in its own monotypic genus, Hartertula, within the Malagasy warbler radiation (Bernieridae). Its distinctive, slightly graduated wedge-shaped tail and yellow‑olive tones help separate it from similar small forest birds. It often forages with mixed-species flocks, moving methodically through dense understory.
Temperament
skulking but active
Flight Pattern
short rapid wingbeats
Social Behavior
Usually found singly, in pairs, or small family groups, and commonly associates with mixed-species flocks while foraging. Nests are cup-shaped and placed low to mid-level in dense vegetation. Breeding is likely during the austral spring to early summer, with both parents involved in care.
Migratory Pattern
Resident
Song Description
A high, thin series of chips and trills delivered in short phrases from the understory. Calls are sharp, sibilant notes used to keep contact within pairs or mixed flocks.
Plumage
Soft yellow-olive plumage with greener upperparts and paler yellowish underparts; slightly darker wings and tail with a subtly graduated, wedge-like shape.
Diet
Primarily gleans small insects and other arthropods from foliage, twigs, and dead leaf clusters. It takes caterpillars, beetles, and spiders, occasionally sallying short distances to snatch disturbed prey. Rarely, it may peck at soft plant matter or tiny berries, but animal prey dominates its intake.
Preferred Environment
Feeds in the shaded understory and midstory of humid evergreen forest, especially in dense thickets and along edges. Frequently follows mixed-species flocks to exploit flushed insects and shared vigilance.
