Ashok Jain / Rose Ringed Parakeet looking out of nest hole. Keoladeo NP India (Psittacula krameri)

Robin Chittenden / Rose ringed Parakeet (Psittacula krameri) perched on wall, London, UK January

Robin Chittenden / Rose ringed Parakeet (Psittacula krameri) at bird feeders in urban garden, London, UK January

Robin Chittenden / Rose ringed Parakeet (Psittacula krameri) at bird feeders in urban garden, London, UK January

Andy Sands / Ring-necked Parakeet (Psittacula krameri) feeding on wind fallen apples. Hertfordshire, England, UK, January.

Hanne & Jens Eriksen / Rose ringed parakeet (Psittacula krameri) drinking, Oman, January

Laurent Geslin / Rose-ringed / Ring-necked Parakeet (Psittacula krameri) and Feral pigeon (Columba livia) on a feeder, in urban park, London, England, UK, November.

Laurent Geslin / Rose-ringed / Ring-necked Parakeet (Psittacula krameri) and Feral pigeon (Columba livia) on a feeder, in urban park, London, England, UK, November.

Laurent Geslin / Rose-ringed / Ring-necked Parakeets (Psittacula krameri) on a feeder, in urban park, London, England, UK, November.

Laurent Geslin / Rose-ringed / Ring-necked Parakeets (Psittacula krameri) being fed in the hand, in urban park, London, England, UK, November.

Laurent Geslin / Rose-ringed / Ring-necked Parakeets (Psittacula krameri) being fed in the hand, in urban park, London, England, UK, November.

Laurent Geslin / Rose-ringed / Ring-necked Parakeets (Psittacula krameri) being fed in the hand by an elderly lady, in urban park, London, England, UK, November.

Laurent Geslin / Rose-ringed / Ring-necked Parakeets (Psittacula krameri) on a feeder in urban park, with young girl on bicycle behind, London, England, UK, November.

Laurent Geslin / Rose-ringed / Ring-necked Parakeets (Psittacula krameri) on a feeder in urban park, London, England, UK, November.

Laurent Geslin / Rose-ringed / Ring-necked Parakeets (Psittacula krameri) on a feeder in urban park, London, England, UK, November.

Laurent Geslin / Rose-ringed / Ring-necked Parakeet (Psittacula krameri) and Feral pigeons (Columba livia) on a feeder, in urban garden, London, England, UK, November.

Laurent Geslin / Rose-ringed / Ring-necked Parakeet (Psittacula krameri) feeding on fallen apple impaled on a branch, urban park, London, England, UK, November.

Laurent Geslin / Rose-ringed / Ring-necked Parakeet (Psittacula krameri) feeding on fallen apple impaled on a branch, urban park, London, England, UK, November.

Dietmar Nill / Rose ringed / Ring-necked parakeet (Psittacula krameri) at nest hole in Plane tree in city, Mannheim, Germany, invasive alien species

Dietmar Nill / Rose ringed / Ringnecked parakeet (Psittacula krameri) in flight, Mannheim, Germany, invasive alien species

Dietmar Nill / Rose ringed / Ringnecked parakeet (Psittacula krameri) pair perched in tree, interacting, Mannheim, Germany, invasive alien species

Dietmar Nill / Rose ringed / Ringnecked parakeet (Psittacula krameri) flying from nest hole in tree, Mannheim, Germany, invasive alien species

Dietmar Nill / Rose ringed / Ringnecked parakeet (Psittacula krameri) pair at nest hole, Mannheim, Germany, invasive alien species

Kerstin Hinze / Rose-ringed / Ring-necked Parakeet (Psittacula krameri) pair in tree, wild, Mannheim, Baden-Wuerttemberg, Germany

Kerstin Hinze / Rose ringed / Ring-necked Parakeet (Psittacula krameri) feeding on flowers of Japanese Cherry (Prunus serrulata) Mannheim, Baden-Wuerttemberg, Germany

Kerstin Hinze / Rose-ringed / Ring-necked Parakeet (Psittacula krameri) feeding on spring flowers / catkins, wild, Mannheim, Baden-Wuerttemberg, Germany

Kerstin Hinze / Rose-ringed / Ring-necked Parakeet (Psittacula krameri) male and female at nest hole in Plane tree (Platanus sp) wild, Mannheim, Baden-Wuerttemberg, Germany

Kerstin Hinze / Rose-ringed / Ring-necked Parakeet (Psittacula krameri) male feeding female in Plane tree (Platanus sp) wild, Mannheim, Baden-Wuerttemberg, Germany

Kerstin Hinze / Rose-ringed / Ring-necked Parakeet (Psittacula krameri) at nest hole in Plane tree (Platanus sp) wild, Mannheim, Baden-Wuerttemberg, Germany

Kerstin Hinze / Rose-ringed / Ring-necked Parakeet (Psittacula krameri) at nest hole in Plane tree (Platanus sp) wild, Mannheim, Baden-Wuerttemberg, Germany

Kerstin Hinze / Rose ringed / Ring-necked Parakeet (Psittacula krameri) feeding on flowers of Japanese Cherry (Prunus serrulata) Mannheim, Baden-Wuerttemberg, Germany

Kerstin Hinze / Rose-ringed / Ring-necked Parakeet (Psittacula krameri) looking out of nest hole in Plane tree (Platanus sp) wild, Mannheim, Baden-Wuerttemberg, Germany

Kerstin Hinze / Rose-ringed / Ring-necked Parakeet (Psittacula krameri) flying to nest hole in Plane tree (Platanus sp) wild, Mannheim, Baden-Wuerttemberg, Germany

Kerstin Hinze / Rose ringed / Ring-necked Parakeet (Psittacula krameri) at its nest hole in a Plane tree (Platanus sp) Mannheim, Baden-Wuerttemberg, Germany

TJ Rich / Ring-necked / Rose-ringed Parakeet (Psittacula krameri) perched on branch outside nesting hole, Ranthambhore NP, Rajasthan, India

TJ Rich / Rose ringed / Ring-necked Parakeet {Psittacula krameri} perched with one foot raised, Ranthambhore NP, Rajasthan, India

TJ Rich / Rose ringed / Ring-necked Parakeet {Psittacula krameri} stretching wing, Ranthambhore NP, Rajasthan, India

TJ Rich / Rose ringed / Ring-necked Parakeet {Psittacula krameri} perched, Ranthambhore NP, Rajasthan, India

TJ Rich / Ring-necked / Rose-ringed Parakeet (Psittacula krameri) peeping out of nesting hole in tree, Ranthambhore NP, Rajasthan, India

David Kjaer / Rose-Ringed Parakeet (Psittacula krameri) hanging upside down feeding on hawthorn leaves, Richmond Park, London, UK, naturalised british population from cage birds that escaped into the wild.

David Kjaer / Rose-Ringed Parakeet (Psittacula krameri) at nest hole in tree, Richmond Park, London, UK, naturalised british population from cage birds that escaped into the wild.

David Kjaer / Rose-Ringed Parakeet (Psittacula krameri) five perched, Richmond Park, London, UK, naturalised british population from cage birds that escaped into the wild.

David Kjaer / Rose-Ringed Parakeet (Psittacula krameri) feeding on Tinder fungus (probably taking a mineral supplement) Richmond Park, London, UK, naturalised british population from cage birds that escaped into th...

David Kjaer / Rose-Ringed Parakeet (Psittacula krameri) Richmond Park, London, UK, naturalised british population from cage birds that escaped into the wild.

David Kjaer / Rose-Ringed Parakeet (Psittacula krameri) feeding on Hawthorn berries, Richmond Park, London, UK, naturalised british population from cage birds that escaped into the wild.

David Kjaer / Rose-Ringed Parakeet (Psittacula krameri) feeding on Hawthorn berries, Richmond Park, London, UK, naturalised british population from cage birds that escaped into the wild.

David Kjaer / Rose-Ringed Parakeet (Psittacula krameri) feeding on horse chestnut conker, Richmond Park, London, UK, naturalised british population from cage birds that escaped into the wild.

David Kjaer / Rose-Ringed Parakeet (Psittacula krameri) feeding on Hawthorn berries, Richmond Park, London, UK, naturalised british population from cage birds that escaped into the wild.

David Kjaer / Rose-Ringed Parakeet (Psittacula krameri) feeding on Tinder fungus (probably taking a mineral supplement), Richmond Park, London, UK, naturalised british population from cage birds that escaped into t...

David Kjaer / Rose-Ringed Parakeet (Psittacula krameri) Richmond Park, London, UK, naturalised british population from cage birds that escaped into the wild.

David Kjaer / Rose-Ringed Parakeets (Psittacula krameri) Richmond Park, London, UK, naturalised british population from cage birds that escaped into the wild.

Nature Production / Rose ringed Parakeet {Psittacula krameri} feeding on cherry flowers {Prunus Cerasus kanzakura 'Kanzakura'} Tokyo, Japan

Steven David Miller / Rose ringed parakeet {Psittacula krameri} Captive, Australia

Pete Oxford / Male Rose ringed parakeet {Psittacula krameri} Keoladeo Ghana NP Bharatpur, India

Bernard Castelein / Rose ringed parakeet {Psittacula krameri} feeding in Flame of the Forest tree, India

Hanne Jens Eriksen / Rose-ringed parakeet on wire eating desert squash {Psittacula krameri} Oman,

Bernard Castelein / Rose ringed parakeet {Psittacula kramerI} Keoladeo Ghana, Bharatpur, India

Michael Pitts / Rose ringed parakeet chicks in cage for sale {Psittacula krameri}

Michael Pitts / Rose ringed parakeets in cage for sale {Psittacula krameri}

Michael Durham / Blue phase of normally green Rose ringed parakeet {Psittacula krameri} female

Michael Durham / Blue phase of normally green Rose ringed parakeet {Psittacula krameri} female. Captive, USA.

Bernard Castelein / Rose ringed parakeet male feeding in tree {Psittacula krameri} Keoladeo NP, Rajasthan, India

Bernard Castelein / Rose ringed parakeet drinking from puddle {Psittacula krameri} Keoladeo Ghana NP / Bharatphur, India

Bernard Castelein / Rose ringed parakeet looks for minerals in sandstone of Jain temple {Psittacula krameri} India Rajasthan

Bernard Castelein / Rose ringed parakeet, mating behaviour {Psittacula krameri} Keoladeo Ghana NP, Rajasthan, India

Bernard Castelein / Rose ringed parakeet drinks from stand pipe (Psittacula krameri) Keoladeo / Bharaptpur NP, India

Bernard Castelein / Rose ringed parakeet portrait Keoladeo(Psittacula krameri) India

LUKE B. BARNETT / Wild Rose ringed parakeet eating hornbeam fruits {Psittacula krameri} Richmond