The Grey-headed Parakeet Psittacula finschii is closely related to the Slaty-headed Parakeet

Slaty-headed Parakeet

The Slaty-headed Parakeet is the only psittacid species to exhibit altitudinal migration. The species' range extends from the foothills of the Western Himalayas in India, through Nepal and Bhutan and up to the Eastern Himalayas in the northeastern Indian state of Arunachal Pradesh...

 which together form a super-species. It occurs from the North-eastern states of India

India

India , officially the Republic of India , is a country in South Asia. It is the seventh-largest country by geographical area, the second-most populous country with over 1.2 billion people, and the most populous democracy in the world...

, into Burma, Thailand

Thailand

Thailand , officially the Kingdom of Thailand , formerly known as Siam , is a country located at the centre of the Indochina peninsula and Southeast Asia. It is bordered to the north by Burma and Laos, to the east by Laos and Cambodia, to the south by the Gulf of Thailand and Malaysia, and to the...

, Cambodia

Cambodia

Cambodia , officially known as the Kingdom of Cambodia, is a country located in the southern portion of the Indochina Peninsula in Southeast Asia...

, Laos

Laos

Laos Lao: ສາທາລະນະລັດ ປະຊາທິປະໄຕ ປະຊາຊົນລາວ Sathalanalat Paxathipatai Paxaxon Lao, officially the Lao People's Democratic Republic, is a landlocked country in Southeast Asia, bordered by Burma and China to the northwest, Vietnam to the east, Cambodia to the south and Thailand to the west...

 and Vietnam

Vietnam

Vietnam – sometimes spelled Viet Nam , officially the Socialist Republic of Vietnam – is the easternmost country on the Indochina Peninsula in Southeast Asia. It is bordered by China to the north, Laos to the northwest, Cambodia to the southwest, and the South China Sea –...

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The binomial of this bird commemorates the German naturalist and explorer Otto Finsch

Otto Finsch

Friedrich Hermann Otto Finsch was a German ethnographer, naturalist and colonial explorer.-Biography:...

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Its face is grey/green, and the rest of its head is dull green with faint pale green band below cheeks to hindcrown and its wing are patch absent and has a short tail.