Matthew Maran / Man with Chiffchaff (Phylloscopus collybita) during ringing study, in reedbeds on the Otter Estuary, East Devon, England, UK, May 2017.

Matthew Maran / Common chiffchaff (Phylloscopus collybita) using a beaver dam to hunt for insects, East Devon, England, UK, February.

Mike Read / Common chiffchaff (Phylloscopus collybita) perched on stem of Bulrush (Typha latifolia) beside the lake at Quinta do Lago, Ria Formosa Nature Reserve, Algarve, Portugal, February.

Andy Sands / Chiffchaff (Phylloscopus collybita) perched on Hogweed stem, Hertfordshire, England, UK, March

Jussi Murtosaari / Common Chiffchaff (Phylloscopus collybita), adult with wildflowers, Finland, April.

Jussi Murtosaari / Common chiffchaff (Phylloscopus collybita), adult in spring, Finland, April.

Robin Chittenden / Common chiffchaff (Phylloscopus collybita) Norfolk UK April

Robin Chittenden / Common chiffchaff (Phylloscopus collybita) Norfolk UK April

Staffan Widstrand / Chiffchaff (Phylloscopus collybita) perched, Punia Forest Reserve, Lithuania, May.

David Tipling / Chiffchaff (Phylloscopus collybita) perched in Buckthorn, Norfolk, UK April.

Markus Varesvuo / Chiffchaff (Phylloscopus collybita) portrait. Estonia. June

Markus Varesvuo / Chiffchaff (Phylloscopus collybita) Estonia 2003