Fergus Gill / 2020VISION / Collared dove (Streptopelia decaocto) perched on a snow covered branch, Perthshire, Scotland, UK, April.

Andrew Parkinson / Sparrowhawk (Accipiter nisus) adult killing and plucking feathers from collared dove. Derbyshire, UK, November. British Wildlife Photographer of the Year (BWPA) competition 2012, 'Animal Behaviour' ca...

Andrew Parkinson / Sparrowhawk (Accipiter nisus) adult with feather of collared dove in beak, after making kill. Derbyshire, UK, November. (Non-ex)

Andrew Parkinson / 2020VISION / Adult female Sparrowhawk (Accipiter nisus) feeding on a collared dove kill in a garden, Derbyshire, UK, November 2011

Andrew Parkinson / 2020VISION / An adult female Sparrowhawk (Accipiter nisus) landing on a collared dove kill in a garden, Derbyshire, UK, November 2011. Did you know? In falconry sparrowhawks were traditionally used by priests.

B&S Draker / Collared Peccary (Tayassu tajacu) adult in field of Huisache Daisy (Amblyolepis setigera). Sinton, Corpus Christi, Coastal Bend, Texas, USA, March.

Inaki Relanzon / White collared / Grey-headed lemur (Eulemur cinereiceps) male, captive, Manombo forest, Madagascar, critically endangered

Bence Mate / Collared Aracari (Pteroglossus torquatus) displaying at Montezuma Oropendola (Psarocolius montezuma) Laguna del Lagarto, Santa Rita, Costa Rica

Suzi Eszterhas / Black-collared Hawk (Busarellus nigricollis) fishing, Pantanal, Brazil

Jose B. Ruiz / Collared dove {Streptopelia decaocto} drinking from bird bath, Moralet, Alicante, Spain

Terry Andrewartha / Two Collared doves (Streptopelia decaocto) on tree in blossom, UK

Gabriel Rojo / Double collared seedeater {Sporophila caerulescens} La Pampa, Argentina

Gabriel Rojo / Rufous collared sparrow {Zonotrichia capensis} El Condorito NP, Argentina

Rolf Nussbaumer / Collared peccary drinking {Tayassu tajacu} Texas, USA.

Larry Minden / Collared Lizard (Crotaphytus collaris) holding itself up off of hot rocks, Mojave Desert, California

Fred Bavendam / Collared Butterflyfish (Chaetodon collare) school, Andaman Sea, Thailand

David Welling / Collared peccary, Texas, USA.

Georgette Douwma / Collared butterflyfish {Chaetodon collare} Andaman sea, Thailand

Tony Heald / Red collared rainbow lorikeets {Trichoglossus haemotadus rubritorquatus} Western Australia

Richard Du Toit / Red-collared Widowbird (Euplectes ardens) male in breeding plumage, Rietvlei Nature Reserve, Gauteng, South Africa

Juan Manuel Borrero / Illustration of Collared Pratincole (Glareola pratincola). Pencil and watercolor painting.

David Welling / Male Great Basin or Desert collared lizard (Crotaphytus insularis bicinctores) sits on a rock outcrop in Redding canyon, Owens valley, Inyo county, California, United States

Fergus Gill / 2020VISION / Collared dove (Streptopelia decaocto), Perthshire, Scotland, UK, June.

Konrad Wothe / Collared Doves (Streptopelia decaocto) nesting in letter U of neon advertising sign, Germany, Europe, October

Murray Cooper / Southern Double-collared Sunbird (Cinnyris chalybeus) male on flower, South Africa

Murray Cooper / Black-collared Barbet (Lybius torquatus), Kruger National Park, South Africa

Christophe Courteau / Common / Crested Caracara (Caracara plancus) attacking Black Collared Hawk (Busarellus nigricollis) for food, Pantanal, Brazil

Christophe Courteau / Black Collared Hawk (Busarellus nigricollis) displaying wings spread, Pantanal, Brazil

Hanne & Jens Eriksen / Collared dove (Streptopelia decaocto) on golf lawn, Oman, December

Hanne & Jens Eriksen / Collared pratincole (Glareola pratincola) calling profile in field, Oman, April

Georgette Douwma / Redtail or Collared butterflyfish (Chaetodon collare) Andaman Sea, Thailand.

Georgette Douwma / Collared or Redtail butterflyfish (Chaetodon collare) swimming over coral reef with soft corals. Andaman Sea, Thailand. (Digital composite).

Colin Varndell / Adult Collared dove (Streptopelia decaocto), Dorset, UK, March

Ann & Steve Toon / Collared sunbird male (Hedydipna collaris) on Aloe plant, Kruger National Park, South Africa, June 2012

Roger Powell / Collared Pratincole (Glareola pratincola) male claiming nesting territory in a flower meadow, Guerreiro, Castro Verde, Alentejo, Portugal, April

Roger Powell / Collared Pratincoles (Glareaola pratincola) males courting a recently arrived female, Guerreiro, Castro Verde, Alentejo, Portugal, April

Roger Powell / Collared pratincole (Glareola pratincola) male greeting a recently arrived female, Guerreiro, Castro Verde, Alentejo, Portugal, April

Roger Powell / Collared pratincole (Glareola pratincola) feeding on a flower head, Guerreiro, Castro Verde, Alentejo, Portugal, April

Roger Powell / Collared pratincole (Glareola pratincola) standing on a raised soil mound, looking for a mate, Guerreiro, Castro Verde, Alentejo, Portugal, April

Tui De Roy / Collared inca (Coeligena torquata) in flight, Guango private reserve, Papallacta Valley, Andean Cloud Forest, Ecuador

Tui De Roy / Collared inca (Coeligena torquata) profile portrait, Guango private reserve, Papallacta Valley, Andean Cloud Forest, Ecuador

Tui De Roy / Collared inca (Coeligena torquata) hovering below flower about to feed, Bellavista cloud forest private reserve, 1700m altitude, Tandayapa Valley, Andean cloud forest, Ecuador

Loic Poidevin / Collared scops owl (Otus lettia) Kanha National Park, Madhya Pradesh, India, March

Philippe Clement / Collared dove (Streptopelia decaocto) preening its tail feathers, Belgium, June

Philippe Clement / Great spotted woodpecker juvenile (Dendrocopos major), Eurasian collared dove (Streptopelia decaocto), Blue tit (Parus caeruleus) and Great tit (Parus major) eating peanuts from bird feeder on balcony...

Kerstin Hinze / Greater Double collared sunbird (Nectarinia afra), male feeding from Natal Bottle Brush (Greyia sutherlandii) Hidden Valley, KwaZulu-Natal, South Africa, October

Kerstin Hinze / Greater Double collared sunbird (Nectarinia afra), female feeding from Natal Bottle Brush (Greyia sutherlandii) Hidden Valley, KwaZulu-Natal, South Africa, October

Kerstin Hinze / Greater Double collared sunbird (Nectarinia afra), female feeding from Natal Bottle Brush (Greyia sutherlandii) Hidden Valley, KwaZulu-Natal, South Africa, October

Roy Mangersnes / Collared pratincole (Glareola praticola) on sandbank, Okavango Delta, Botswana, November.

Charlie Summers / Yellow-collared lovebird / Masked lovebird (Agapornis personatus) with food in its beak. Tarangire, Tanzania.

Charlie Summers / Yellow-collared lovebird / Masked lovebird (Agapornis personatus) drinks at a pond. Tarangire, Tanzania.

Charlie Summers / Yellow-collared lovebird / Masked lovebird (Agapornis personatus) throws its head back when drinking. Tarangire National Park, Tanzania.

Tom Vezo / Mourning Dove (Zenaida macroura), Green Valley, Arizona

Konrad Wothe / Rufous collared Sparrow (Zonotrichia capensis) singing, Costa Rica

Michel Poinsignon / Collared dove (Streptopelia decaocto) perched on mossy branch, Lorraine, France December.

Michel Poinsignon / Collared dove (Streptopelia decaocto) perched on mossy branch in winter during snowfall, Lorraine, France December.

Shibai Xiao / Collared scops owl (Otus bakkamoena lempiji) left and Asian barred owlet (Glaucidium cuculoides) on right, held captive in mans hands, being sold on market, Guangxi Province, China, November 2011.

Roland Seitre / Purple-collared Woodstar (Myrtis fanny). Chaparri reserve, Chiclayo, Lambayeque, July.

Roland Seitre / Purple-collared Woodstar (Myrtis fanny) bathing in stream. Chaparri reserve, Chiclayo, Lambayeque, Peru, July.

Roland Seitre / Collared Aracari (Pteroglossus torquatus) in profile. Canopy bird observation tower, Summit, Panama City region, Canal rainforest, 2008.

Roland Seitre / Collared Aracari (Pteroglossus torquatus) perched. Canopy bird observation tower, Summit, Panama City region, Canal rainforest, 2008.

Roland Seitre / Collared Aracari (Pteroglossus torquatus) portrait. Canopy bird observation tower, Summit, Panama City region, Canal rainforest, 2008.

Nick Garbutt / Collared nightjar (Caprimulgus enarratus) perched on branch in rainforest understorey, Ranomafana National Park, south east Madagascar.

Sue Flood / Collared aracari (Pteroglossus torquatus) near Boca Tapada, Costa Rica. January 2011

Daniel Heuclin / Collared Lizard (Crotaphytus collaris baileyi) male with a regenerated tail in defensive posture, controlled conditions, North Arizona, USA

Daniel Heuclin / Collared Lizard (Crotaphytus collaris baileyi) male with a regenerated tail, controlled conditions, North Arizona, USA

Daniel Heuclin / Great basin collared lizard (Crotaphytus bicinctores) male, taken in controlled conditions, Joshua's Tree National Monument, California, USA

Loic Poidevin / Collared brown lemur (Eulemur fulvus collaris) sitting on forest branch with long tail hanging down, Madagascar.

Loic Poidevin / Collared brown lemur (Eulemur fulvus collaris) clinging to forest branch, Madagascar.

Loic Poidevin / Collared brown lemur (Eulemur fulvus collaris) in tree with tail hanging down, Madagascar.

Inaki Relanzon / Cuvier's madagascar swift / Collared iguana (Oplurus cuvieri) seen from above, Sahamalaza National Park, North West Coast, Madagascar, October

Inaki Relanzon / Cuvier's madagascar swift / Collared iguana (Oplurus cuvieri) portrait, Sahamalaza National Park, North West Coast, Madagascar, October

Donald M. Jones / Collared Pika (Ochotona collaris), Denali National Park, Alaska

Donald M. Jones / Collared Pika (Ochotona collaris) feeding on vegetation, Denali National Park, Alaska

Luiz Claudio Marigo / Rufous-collared sparrow (Zonotrichia capensis) male looking at its own image in car mirror, Atlantic Rainforest of Serrinha do Alambari Environmental Protection Area, Rio de Janeiro State, Southeaster...

Markus Varesvuo / Collared flycatcher (Ficedula albicollis) Finland May

Markus Varesvuo / Collared doves (Streptopelia decaocto) Israel

Scott Leslie / Mourning Dove (Zenaida macroura) group in winter, Nova Scotia, Canada

Scott Leslie / Mourning Dove (Zenaida macroura) group in winter, Nova Scotia, Canada

Steve Gettle / Crimson-collared Tanager (Ramphocelus sanguinolentus) male, Costa Rica

Steve Gettle / Crimson-collared Tanager (Ramphocelus sanguinolentus) male, Costa Rica

Steve Gettle / Collared Aracari (Pteroglossus torquatus), Costa Rica

Steve Gettle / Collared Aracari (Pteroglossus torquatus), Costa Rica

Steve Gettle / Collared Redstart (Myioborus torquatus), Costa Rica

Steve Gettle / Collared Redstart (Myioborus torquatus), Costa Rica

Andrew Parkinson / 2020VISION / Adult female Sparrowhawk (Accipiter nisus) feeding on a collared dove kill in a garden, Derbyshire, UK, November 2011

Andrew Parkinson / 2020VISION / Adult female Sparrowhawk (Accipiter nisus) feeding on a collared dove kill in a garden, Derbyshire, UK, November 2011

Andrew Parkinson / 2020VISION / Adult female Sparrowhawk (Accipiter nisus) plucking a collared dove kill in a garden, Derbyshire, UK, November 2011

Andrew Parkinson / 2020VISION / Adult female Sparrowhawk (Accipiter nisus) plucking a collared dove kill in a garden, Derbyshire, UK, November 2011

Andrew Parkinson / 2020VISION / An adult female Sparrowhawk (Accipiter nisus) plucking a collared dove in a garden, Derbyshire, UK, November 2011

Andrew Parkinson / 2020VISION / An adult female Sparrowhawk (Accipiter nisus) feeding on a collared dove kill in a garden, Derbyshire, UK, November 2011

Andrew Parkinson / 2020VISION / Adult female Sparrowhawk (Accipiter nisus) feeding on a collared dove kill in a garden, Derbyshire, UK, November 2011

Andrew Parkinson / 2020VISION / Adult female Sparrowhawk (Accipiter nisus) standing on and plucking a collared dove kill in a garden, Derbyshire, UK, November 2011

Andrew Parkinson / 2020VISION / Portrait of an adult female Sparrowhawk (Accipiter nisus) on a collared dove kill in a garden, Derbyshire, UK, November 2011

Andrew Parkinson / 2020VISION / Adult female Sparrowhawk (Accipiter nisus) standing on a collared dove kill in a garden, Derbyshire, UK, November 2011

Andrew Parkinson / 2020VISION / Adult female Sparrowhawk (Accipiter nisus) standing on a collared dove kill in a garden, Derbyshire, UK, November 2011