Pitcairn Reed-Warbler (Acrocephalus vaughani)

Other Names (World)
Pitcairn Reed-Warbler, Pitcairn Warbler, Henderson Warbler, Henderson Sparrow (on Pitcairn), Pitcairn Reed Warbler

Family
Acrocephalidae (Reed-warblers)

Size
17 cm

First Described (Guide)
(Sharpe, 1900)

Habitat
Brushy forest, villages.

Range (Guide)

Pitcairn Islands (B) (NB).

Pitcairn, in Pitcairn Is (southern Polynesia).

Rarity Status
Currently this species is not classified as a rarity in this country OR information has not been updated.

Population
Estimated population is 250 - 999 (2012) and decreasing.

Status EN
Habitat destruction and degradation, predation by Pacific rat Rattus exulans and feral cats, are the main threats.

For more information see BirdLife International Species Factsheet.

Voice
Alarm call is a loud 'chack-chack' or a shrill chirp.

Xeno-Canto Sound Files

Pitcairn Reed Warbler (Acrocephalus vaughani) [XC97378]
by id from Adamstown, Pitcairn Island, United Kingdom (song)

Subspecies
No subspecies.

Acrocephalus vaughani (Sibley and Monroe 1990) has been split into Pitcairn Reed-Warbler (Acrocephalus vaughani), Rimatara Reed-Warbler (Acrocephalus rimitarae) and Henderson Reed-Warbler (Acrocephalus taiti) following Sibley and Monroe (1993). Note that Collar et al. (1994) followed Sibley and Monroe (1990) in treating these three taxa as a single species, Pitcairn Reed-Warbler (Acrocephalus vaughani).

According to mitochondrial DNA sequences and morphology, this species is part of a monophyletic clade together with Great Reed-Warbler (Acrocephalus arundinaceus), Oriental Reed-Warbler (Acrocephalus orientalis), Clamorous Reed-Warbler (Acrocephalus stentoreus) and Australian Reed-Warbler (Acrocephalus australis). Probably other Pacific species also belong to this clade, but genetic data lacking. Has been treated as conspecific with Rimatara Reed-Warbler (Acrocephalus rimitarae) and Henderson Reed-Warbler (Acrocephalus taiti), but basic differences in sequence and pattern of leucistic plumage among the taxa suggest substantial genetic differentiation at species level. As they are separated by great distances of open ocean, gene flow among them is probably less than minimal.

References
See References.

Files:

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BirdLife International

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