John Waters / Large murmuration of Common starlings (Sturnus vulgaris) swirling over reedbed roost at sunset, Ham Wall RSPB Reserve, Somerset, England, UK, January.

John Waters / Large flock of Common starlings (Sturnus vulgaris) swirling over reedbed roost at dusk, Ham Wall RSPB Reserve, Somerset, England, UK, November.

John Waters / Large flock of Common starlings (Sturnus vulgaris) swirling over reedbed roost at dusk, Ham Wall RSPB Reserve, Somerset, England, UK, November.

Five Films / Large flock of Common starlings (Sturnus vulgaris) flying at dusk, Somerset Levels, England, UK, November.

Dave Bevan / Murmuration of Common starlings (Sturnus vulgaris) flying above pier, Aberystwyth, Ceredigion, Wales, UK, October.

Terry Whittaker / Group of Common starlings (Sturnus vulgaris) feeding from a bird feeder, with an adult feeding juveniles perched on the top, Greater Manchester, England, UK, May.

Dietmar Nill / Murmuration of Common starlings (Sturnus vulgaris) at dusk, Rome, Italy, December.

Bence Mate / European Roller (Coracias garrulus) fighting with Starling (Sturnus vulgaris) in flight, Lake Csaj, Pusztaszer, Kiskunsagi National Park, Hungary, February.

Hermann Brehm / Starling (Sturnus vulgaris) at the nesthole, Germany. June

Hermann Brehm / Starling (Sturnus vulgaris) feeding young at the nesthole, Germany. May

Peter Lewis / Starling (Sturnus vulgaris) coming into roost at sunset, Brighton, Sussex, England, UK, December.

Peter Lewis / Starling (Sturnus vulgaris) murmuration at Studland, Dorset, England, UK, January.