Acrocephalus orientalis (Temminck & Schlegel, 1847)

Bishop, K. David, 2023, The avifauna of Biak Island, Papua, Indonesia with comments on status, conservation, natural history and taxonomy, Bulletin of the British Ornithologists’ Club 143 (1), pp. 3-62 : 52

[ORIENTAL REED WARBLER Acrocephalus orientalis ]

G. F. Mees informed M. LeCroy (1969) about a male orientalis labelled as being from Soek (= Biak) Island in Teluk Cenderawasih, collected by von Rosenberg and held in the Leiden Museum. The specimen was formerly mounted and the original label is lost. Von Rosenberg collected on Biak in 1869 but, because the specimen is undated, Mees felt it unwise to add this taxon to the New Guinea avifauna on such a basis. Given that orientalis has since been collected on the Vogelkop, the Biak record is probably also valid.