Nail & Hamer Noise/Sound by Funny Green Ring-neck Parrot, this parrot is very intelligent, can copy

This Funny Green Ring Parrot Learn the noise/sound of Hamer hitting the nail.
Rose-ringed parakeet
The rose-ringed parakeet (Psittacula krameri), also known as the ring-necked parakeet, is a medium-sized parrot in the genus Psittacula, of the family Psittacidae. It has disjunct native ranges in Africa and the Indian Subcontinent, and is now introduced into many other parts of the world where feral populations have established themselves and are bred for the exotic pet trade.

One of the few parrot species that have successfully adapted to living in disturbed habitats, it has withstood the onslaught of urbanisation and deforestation. As a popular pet species, escaped birds have colonised a number of cities around the world, including Northern and Western Europe.[2] These parakeets have also proven themselves capable of living in a variety of climates outside their native range, and are able to survive low winter temperatures in Northern Europe.[3][4] The species is listed as least concern by the International Union for Conservation of Nature (IUCN) because its population appears to be increasing, but its popularity as a pet and unpopularity with farmers have reduced its numbers in some parts of its native range.[1]

Taxonomy
Four subspecies are recognised, though they differ little:

African subspecies:
African rose-ringed parakeet (P. k. krameri): western Africa in Guinea, Senegal, and southern Mauritania, east to western Uganda and southern Sudan, north to Egypt. Resident along the Nile valley and certainly Giza, it is sometimes seen on the north coast and in Sinai. The African parakeet also started to breed in Israel and Jordan in the 1980s and is considered an invasive species.
Abyssinian rose-ringed parakeet (P. k. parvirostris): northwest Somalia, west across northern Ethiopia to Sennar state, Sudan
Asian subspecies:
Indian rose-ringed parakeet (P. k. manillensis) originates from the southern Indian subcontinent and has feral and naturalised populations worldwide. In Australia, Great Britain (mainly around London), the United States, and other western countries, it is often referred to as the Indian ringneck parrot.[5][6]
Boreal rose-ringed parakeet (P. k. borealis) is distributed in Bangladesh, Pakistan, northern India and Nepal to central Burma; introduced populations are found worldwide.

Head detail of P. k. manillensis.
The Indian subspecies are both larger than the African subspecies.[5]

The genus name Psittacula is a diminutive of Latin psittacus, "parrot", and the specific krameri commemorates the Austrian naturalist Wilhelm Heinrich Kramer.[7]

Description
The rose-ringed parakeet is sexually dimorphic. The adult male sports a red and black neck ring, and the hen and immature birds of both sexes either show no neck rings, or display shadow-like pale to dark grey neck rings. Both sexes have a distinctive green colour in the wild, and captive bred ringnecks have multiple colour mutations which include turquoise, cinnamon, olive, white, blue, violet, grey and yellow. Rose-ringed parakeets measure on average 40 cm (16 in) in length, including the tail feathers, a large portion of their total length. Their average single-wing length is about 15 to 17.5 cm (5.9 to 6.9 in). In the wild, this is a noisy species with an unmistakable squawking call. Captive individuals can be taught to speak. They are a herbivorous and non-migratory species.

Ecology and behaviour
Diet
In the wild, rose-ringed parakeets usually feed on buds, fruits, vegetables, nuts, berries, and seeds. Wild flocks also fly several miles to forage in farmlands and orchards, causing extensive damage. Feral parakeets will regularly visit gardens and other locations near human habitation, taking food from bird feeders.

In India, they feed on cereal grains, and during winter also on pigeon peas.[9] In Egypt during the spring, they feed on mulberry and in summer they feed on dates and nest inside palm trees and eat from sunflower and corn fields.

In captivity, rose-ringed parakeets will take a large variety of food and can be fed on a number of fruits, vegetables, pellets, seeds, and even small amounts of cooked meat for protein. Oils, salts, chocolate, alcohol, and other preservatives should be avoided.[10][11]

Reproduction
In north-west India, Indian rose-ringed parakeets form pairs from September to December. They do not have life mates and often breed with another partner during the following breeding season. During this cold season, they select and defend nest sites, thus avoiding competition for sites with other birds. Feeding on winter pea crops provides the female with nutrients necessary for egg production. From April to June, they care for their young. Fledglings are ready to leave the nest before monsoon.[12]

In the Netherlands, the feral population in the four largest urban areas (Amsterdam, Rotterdam, Utrecht and The Hague) was estimated at 20,000 birds in 2021,[21]