Dong Lei / Spotted dove (Spilopelia chinensis) roosting in tree, half moon in sky. Mount Luoji Nature Reserve, Sichuan Province, China. May.

Staffan Widstrand / Spotted dove (Spilopelia chinensis) Keoladeo Ghana National Park, Bharatpur, Rajasthan, India

Staffan Widstrand / Wild Wonders of China / Oriental turtle dove (Streptopelia chinensis), flying, Yangxian Biosphere Reserve, Shaanxi, China

Staffan Widstrand / Wild Wonders of China / Oriental turtle dove (Streptopelia chinensis), flying, Yangxian Biosphere Reserve, Shaanxi, China

Staffan Widstrand / Wild Wonders of China / Oriental turtle doves (Streptopelia chinensis), male in courtship display to female, Yangxian Biosphere Reserve, Shaanxi, China

Staffan Widstrand / Wild Wonders of China / Oriental turtle dove (Streptopelia chinensis) perched on branch, Yangxian Biosphere Reserve, Shaanxi, China

Staffan Widstrand / Wild Wonders of China / Oriental turtle dove (Streptopelia chinensis), walking on grass in Yangxian Biosphere Reserve, Shaanxi, China, April.

Roger Powell / Collared dove pair (Streptopelia decaocto) in courtship flight. Alentejo, Portugal

Dave Bevan / Group of Collared doves (Streptopelia decaocto) feeding from a birdtable, Norfolk, England, UK. December.

Brian Bevan / Two juvenile Collared doves (Streptopelia decaocto) near nest, Bedfordshire, England, UK, June.

Brian Bevan / Close-up of a juvenile Collared dove (Streptopelia decaocto) preening near nest, Bedfordshire, England, UK, June.

Brian Bevan / Two juvenile Collared doves (Streptopelia decaocto) preening near nest, Bedfordshire, England, UK, June.

Brian Bevan / Collared dove (Streptopelia decaocto) with chicks at nest, Bedfordshire, England, UK, June.

Brian Bevan / Collared dove (Streptopelia decaocto) feeding chicks, Bedfordshire, England, UK, June.

Brian Bevan / Collared dove (Streptopelia decaocto) feeding chicks, Bedfordshire, England, UK, June.

Hanne & Jens Eriksen / Spotted dove (Spilopelia chinensis) on branch, Thailand, February

Ingo Arndt / Eurasian Collared-dove (Streptopelia decaocto) nest built from wire collected at a nearby junkyard, in collection at State Museum of Natural History Stuttgart / Staatliches Museum fr Naturkunde Stuttg...

Fabrice Cahez / Eurasian collared dove (Streptopelia decaocto) silhouetted, Vosges, France, February.

Martin Gabriel / Madagascar Turtle Dove (Streptopelia picturata), Curieuse Island, Republic of Seychelles

Martin Gabriel / Madagascar turtle dove (Streptopelia picturata), feeding on coconut, La Digue Island, Republic of Seychelles

Gary K. Smith / Eurasian Collared dove (Streptopelia decaocto) UK

Roger Powell / Spotted turtle-dove (Streptopelia chinensis) male in full courtship display on a garden fence. Werribee, Victoria, Australia

Loic Poidevin / Eurasian collared dove (Streptopelia decaocto) on ground, Loire Atlantique, France, March

Loic Poidevin / Eurasian collared dove (Streptopelia decaocto) pair on branch, Loire Atlantique, France, March

Hanne & Jens Eriksen / Eurasian collared dove (Streptopelia decaocto) perched, Oman, April.

Jussi Murtosaari / Eurasian collared-dove (Streptopelia decaocto) perched on branch, Pori, Satakunta, Lounais-Suomi, Varsinais-Suomi / Southwestern Finland, Finland. January

Loic Poidevin / Spotted dove (Streptopelia chinensis) on a branch, India, April

Loic Poidevin / Spotted Dove (Streptopelia chinensis) on the ground, India.

Bernard Castelein / Oriental turtle dove (Streptopelia orientalis), near Zemitang, Arunchal Pradesh, India.

Ashish & Shanthi Chandola / Spotted dove (Spilopelia chinensis), Sri Lanka.

Brent Stephenson / Adult Spotted dove (Streptopelia chinensis) perched on a powerline against a blue sky. Cairns, Queensland, Australia. April.

Philippe Clement / Eurasian collared dove (Streptopelia decaocto) perched in tree, Belgium, June.

Philippe Clement / Eurasian collared dove (Streptopelia decaocto) perched in the snow in winter, Belgium, January.

Philippe Clement / Songbirds - Robin (Erithacus rubecula), Blue tits (Cyanistes caeruleus), Eurasian collared dove (Streptopelia decaocto), Crested tit (Lophophanes cristatus) and Great tits (Parus major) feeding on nut...

Philippe Clement / Eurasian collared dove (Streptopelia decaocto) drinking water from bird bath in garden, Belgium, April.

Florian Möllers / Eurasian Collared dove (Streptopelia decaocto) perched in small bush, Vogelpark Marlow, Germany. May

Florian Möllers / Eurasian Collared dove (Streptopelia decaocto) perched in small bush, Vogelpark Marlow, Germany. May

Florian Möllers / Eurasian Collared dove (Streptopelia decaocto) couple perched in a small bush, Vogelpark Marlow, Germany. May

Julian Hume / Illustration of Reunion's pigeons in a gorge above St Louis, Mauritius. Malagasy / Madagascar turtle dove (Nesoenas picturata) (top left - extant); Reunion pink pigeon (Nesoenas duboisi) (centre left)...

Bernard Castelein / Collared dove (Streptopelia decaocto) bathing, Brasschaat, Belgium. January.

Bernard Castelein / Collared dove (Streptopelia decaocto) bathing, Brasschaat, Belgium. January.

Bernard Castelein / Collared dove (Streptopelia decaocto) bathing, Brasschaat, Belgium. January.

Joel Sartore / Photo Ark / Eurasian collared-dove (Streptopelia decaocto decaocto) head portrait, Sheikh Butti Maktoum Wildlife, Dubai, UAE. Captive.

Brian Bevan / Collared dove (Streptopelia decaocto) feeding chicks in nest in Palm tree (Arecaceae sp.), Bedfordshire, UK, June.

Brian Bevan / Collared dove (Streptopelia decaocto) fledglings exercising wings in nest in Palm tree (Arecaceae sp.), Bedfordshire UK, June.

Brian Bevan / Close up of Collared dove (Streptopelia decaocto) feeding chicks at nest in Palm tree (Arecaceae sp.), Bedfordshire UK, June.

Brian Bevan / Close up of Collared dove (Streptopelia decaocto) youngsters preening at nest in Palm tree (Arecaceae sp.) Bedfordshire UK, June

Roland Seitre / Two Collared dove (Streptopelia decaocto) chicks, aged two days, in the nest, Belgium. Captive.

Nick Upton / Collared dove (Streptopelia decaocto) perched on a tree branch, Gloucestershire, UK, August.

Roland Seitre / Two Madagascar turtle doves (Nesoenas picturata) foraging in grass, La Digue, Seychelles.

Roland Seitre / Two Madagascar turtle doves (Nesoenas picturata) foraging in grass, La Digue, Seychelles.

Roland Seitre / Madagascar turtle dove (Nesoenas picturata) juvenile, perched on a rock, Aride Island, Seychelles.

Franco Banfi / Eurasian collared dove (Streptopelia decaocto) sitting on nest. Dominica.

Franco Banfi / Eurasian collared dove (Streptopelia decaocto) sitting on nest. Dominica.

Vishal Jadhav / Spotted dove (Spilopelia chinensis) walking on forest floor to drink water from a jungle stream, Maharashtra, India, March.

Vishal Jadhav / Spotted dove (Spilopelia chinensis) drinking water from a jungle stream with bees flying around, Maharashtra, India, March.

Robin Chittenden / European collared dove (Streptopelia decaocto) walking on ground, Norwich, UK. September.

Neil Challis / Spotted necked dove (Streptopelia chinensis) drinking at the edge of river before walking away out of frame, Western Thailand.

John Chan / Eurasian collared dove (Streptopelia decaocto) grooming its fledgling, Bolsa Chica Ecological Reserve, Southern California, USA, March.

John Chan / Eurasian collared dove (Streptopelia decaocto) stretching its wings, Bolsa Chica Ecological Reserve, Southern California, USA, March.

Nick Upton / Collared dove (Streptopelia decaocto) perched on a chimney pot, Gloucestershire, UK, January.

Ashish & Shanthi Chandola / Spotted dove (Streptopilea chinenesis), Whitefield , Bangalore, April.

Ashish & Shanthi Chandola / Spotted dove ( Streptopilea chinenesis) pair mating, Whitefield , Bangalore, April.

Loic Poidevin / Eurasian collared dove (Streptopelia decaocto) on a branch, Vendee, France, November.