Brian Bevan / Pair of Reed warblers (Acrocephalus scirpaceus) feeding young at nest, Bedfordshire, England, UK, July.

Bence Mate / Little bittern (Ixobrychus minutus) watching Great warbler (Acrocephalus arundinaceus) with prey, Lake Csaj, Kiskunsagi National Park, Hungary.

Bence Mate / Great reed warbler (Acrocephalus arundinaceus) taking fish from water, Hungary, June.

Bence Mate / Great reed warbler (Acrocephalus arundinaceus) feeding Cuckoo chick (Cuculus canorus) Pusztaszer, Kiskunsagi National Park, Hungary, June.

Bence Mate / Great reed warbler (Arcocephalus arundinaceus) chick begging for food, with bokeh affect from water, Pusztaszer, Hungary, June.

Bence Mate / Common cuckoo chick (Cuculus canorus) begging for food from Great reed warbler (Acrocephalus arundinaceus) foster parent, Pusztaszer, Kiskunsagi National Park, Hungary

Paul Hobson / Sedge warbler (Acrocephalus schoenobaenus) male singing whilst perched on Willow (Salix sp) branch. Sheffield, England, UK. May.

Paul Hobson / Reed warbler (Acrocephalus scirpaceus) vocalising whilst perched amongst reeds in morning light. Sheffield, England, UK. May.

Paul Hobson / Reed warbler (Acrocephalus scirpaceus) perched on stem in morning light. Sheffield, England, UK. May.

David Tipling / Cuckoo (Cuculus canorus) 12 day old chick in Reed Warblers (Acrocephalus scirpaceus) nest, Norfolk, England, UK. May.

David Perpinan / Sedge warbler (Acrocephalus schoenobaenus) singing. Scotland, UK, July.

Matthew Maran / Reed warbler (Acrocephalus scirpaceus) being released after ringing, reedbeds on the Otter Estuary, Devon, England, UK, May.