Old World Warblers (Sylviidae)

Madagascar Swamp-warbler (Acrocephalus newtoni) - HBW 11, p. 634

French: Rousserolle de Newton German: Madagaskarrohrsänger Spanish: Carricero Malgache
Other common names: Madagascar Warbler

Taxonomy: Calamoherpe newtoni Hartlaub, 1863, near Soamandrikazay, Madagascar.
Genetic study suggests that this species may form a monophyletic clade with A. rufescens, A. brevipennis, A. gracilirostris, A. rodericanus and A. sechellensis; these sometimes considered to comprise a separate genus, Calamocichla. Recent phylogenetic analysis found strong support for a sister relationship between present species and A. sechellensis. Monotypic.

Distribution: Madagascar.