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

Gary K. Smith / Sedge Warbler {Acrocephalus schoenobaenus} in display flight over coastal reed scrub, Norfolk, UK, May

Gary K. Smith / Sedge Warbler {Acrocephalus schoenobaenus} singing in coastal reed scrub, Norfolk, UK, May

Dave Bevan / Reed warbler (Acrocephalus scirpaceus) perched on reed with caterpillar prey, UK, June

Tim Laman / Marquesas Reed-Warbler (Acrocephalus mendanae) Ua Huka Island, Marquesas Islands, French Polynesia. Endemic to Marquesas Islands.

Dietmar Nill / Great Reed Warbler singing (Arcocephalus arundinaceus) amongst reeds, Bulgaria

Nature Production / Shrenk's / Black-browed Reed-warbler {Acrocephalus bistrigiceps} singing at dawn, Yamanashi, Japan

Nature Production / Shrenk's / Black-browed reed warbler {Acrocephalus bistrigiceps} singing at dusk, Hokkaido, Japan

Nature Production / Great Reed Warbler {Acrocephalus arundinaceus} singing, Saitama, Japan

Nature Production / Great Reed Warbler {Acrocephalus arundinaceus} pair with chicks at nest in Common Reeds {Phragmites communis} Shiga, Japan

Paul Hobson / Reed Warbler (Acrocephalus scirpaceus) nest and eggs, Yorkshire, uk

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

Kerstin Hinze / Great Reed Warbler (Acrocephalus arundinaceus) singing in top of reed, Bulgaria

Steve Knell / Reed warbler (Acrocephalus scirpaceus) at nest with chicks, UK

Yuri Shibnev / Shrenk's reed warbler at nest {Acrocephalus bistrigiceps} Ussuriland, Primorskiy, Russia

Yuri Shibnev / Shrenk's reed warbler at nest {Acrocephalus bistrigiceps} feeding chicks, Ussuriland, Primorskiy, Russia

David Tipling / Migrant Reed warbler on passenger on boat {Acrocephalus scirpaceus} Bay of Biscay

Jose B. Ruiz / Great Reed warbler feeds chicks at nest (Acrocephalus arundinaceus) Spain

Mike Wilkes / Reed warbler {Acrocephalus scirpaceus} nest with own eggs and European cuckoo egg (Cuculus canorus) Worcestershire, UK

Jose B. Ruiz / Reed warbler in reeds (Acrocephalus scipraceus) SPain

Jim Hallett / Reed warbler {Acrocephalus scirpaceus} on nest in reeds, Somerset levels, UK

Paul Hobson / Reed warbler {Acrocephalus scirpaceus} male in reeds, Derbyshire, UK

Andy Sands / Sedge Warbler {Acrocephalus schoenobaenus} perching on reed stem, Hertfordshire, UK.

Steve Knell / Reed warbler bringing food to chicks in nest{Acrocephalus scirpaceus} UK

Steve Knell / Reed warbler at nest with chicks {Acrocephalus scirpaceus} UK

Mike Wilkes / Reed warbler on nest {Acrocephalus scirpaceus} Worcestershire, UK

Philippe Clement / Reed warbler on reed {Acrocephalus scirpaceus} France

Philippe Clement / Reed warbler amongst reeds {Acrocephalus scirpaceus} France

Philippe Clement / Reed warbler on reed {Acrocephalus scirpaceus} France

Philippe Clement / Reed warbler perched amongst reeds {Acrocephalus scirpaceus} France

Philippe Clement / Reed warbler singing on reed {Acrocephalus scirpaceus} France

Philippe Clement / Reed warbler singing on reed {Acrocephalus scirpaceus} France

Philippe Clement / Reed warbler perched on reed {Acrocephalus scirpaceus} France

David Kjaer / Juvenile European cuckoo {Cuculus canorus} fed by Reed warbler parent host {Acrocephalus scirpaceus}. Cuckoos lay their eggs in the nests of reed warblers and when they hatch, the warbler mother will...

John Cancalosi / European cuckoo chick {Cuculus canorus} fed by Reed warbler {Acrocephalus

David Kjaer / Reed warbler in reeds {Acrocephalus scirpaceus} Buckinghamshire, UK

Chris Gomersall / Reed warbler singing in reeds {Acrocephalus scirpaceus} UK

David Kjaer / Reed Warbler at nest with young. UK

Jose B. Ruiz / Great reed warbler feeds chick, Spain

DAVID TIPLING / Fan-tailed warbler (Cisticolia juncidis) on reed. Greece, Europe

Dietmar Nill / Great reed warbler (Acrocephalus arundinaceus) singing amongst reeds, Germany

Robin Chittenden / Reed warbler (Acrocephalus scirpaceus) on reed, Whitlingham CP, Norwich, England, May

Robin Chittenden / Reed warbler (Acrocephalus scirpaceus) on reed, Whitlingham CP, Norwich, England, May

Tim Laman / Marquesas Reed-Warbler (Acrocephalus mendanae) feeding on rainforest fruit, Ua Huka Island, Marquesas Islands, French Polynesia. Endemic to Marquesas Islands.

Nature Production / Shrenk's / Black-browed Reed-warbler {Acrocephalus bistrigiceps} singing, Oshino-mura, Yamanashi, Japan

Nature Production / Shrenk's / Black-browed Reed-warbler {Acrocephalus bistrigiceps} singing, Oshino-mura, Yamanashi, Japan

Nature Production / Great Reed Warbler {Acrocephalus arundinaceus} singing perched amongst Weigela blossom, Niigata, Japan, May

Nature Production / Black-browed / Shrenk's Reed warbler {Acrocephalus bistrigiceps} singing perched on lily flower, Sarobetsu, Hokkaido, Japan, June

Nature Production / Great Reed Warbler {Acrocephalus arundinaceus} singing perched amongst Weigela blossom, Niigata, Japan, May