Steve Downer / Wood pigeon (Columba palumbus) feeding in a garden, flies to fence and then out of frame, Birmingham, England, UK, March.

Andy Trowbridge / Female Northern goshawk (Accipiter gentilis) perched on a branch in falling snow, with Wood pigeon (Columba palumbus) prey, Norway, January.

Markus Varesvuo / Stock Dove (Columba oenas) in flight, Helsinki, Finland, March

Alan Williams / Domestic pigeons (Columba livia) flock in flight over houses, Cheshire, UK, June.

Andy Trowbridge / Female goshawk (Accipiter gentilis) hiding Wood pigeon (Columba palumbus) prey from passing crows. Southern Norway, February.

Laurent Geslin / Rock dove / Feral pigeon (Columba livia) pair displaying, London, UK

Laurent Geslin / Rock dove / Feral pigeon (Columba livia) pair interacting, London, UK

Laurent Geslin / Rock dove / Feral pigeon (Columba livia) pair interacting, London, UK

Laurent Geslin / Man with a feral pigeon (Columba livia) on his shoulder. Trafalgar Square, London, UK

Laurent Geslin / Feral pigeon (Columba livia) on its nest with two chicks, above the streets of Geneva, Switzerland

Laurent Geslin / Feral pigeon (Columba livia) in flight, London, UK

Robin Chittenden,Robin Chittenden / Wood Pigeon (Columba palumbus) Norwich, Norfolk, UK, March