Mike Read / Great reed warbler (Acrocephalus arundinaceus) perched in Common reed (Phragmites australis) in marshland near Tiszaalpar, Hungary, June.

Karl Seddon / Australian Reed-Warbler (Acrocephalus australis), Australia

Rob Drummond / Australian Reed-Warbler (Acrocephalus australis), Bairnsdale, Victoria, Australia

Jan Wegener / Australian Reed-Warbler (Acrocephalus australis), Australia

Wild Wonders of Europe / della Ferrera / Great reed warbler (Acrocephalus arundinaceus) singing amongst Common reeds (Phragmites australis) Hutovo Blato Nature Park, Bosnia and Herzegovina, May 2009

Jouan & Rius / Clamorous reed-warbler (Acrocephalus australis), Central Australia, Australia

Rolf Nussbaumer / Male Great Reed Warbler (Acrocephalus arundinaceus) singing on Common Reed (Phragmites australis), Denja, Spain. May 1997

Rolf Nussbaumer / Male Sedge Warbler (Acrocephalus schoenobaenus) singing on Common Reed (Phragmites australis), Illmitz, Lake of Neusiedl, Austria. May 1996

Bruce Thomson / Australian reed warbler (Acrocephalus australis) male, perched among reeds (Typha sp.) at edge of lake, Canberra, ACT, Australia.

Bruce Thomson / Australian reed warbler (Acrocephalus australis) male, perched among reeds (Typha sp.) at edge of lake, Canberra, ACT, Australia.

Nick Upton / Reed warbler (Acrocephalus scirpaceus) perched with beakful of Common reed (Phragmites australis) flowers to line nest with, Gloucestershire, UK, June.

Robin Chittenden / Sedge warbler (Acrocephalus schoenobaenus) singing, perched on Reed (Phragmites australis) stem. Norwich, England, UK. April.