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Chalcophaps is a genus of small doves, commonly called emerald doves, that are found in Indomalaya and Australasia.

1/ Emerald dove or common emerald dove (Cu luồng, Chalcophaps indica), also called Asian emerald dove and grey-capped emerald dove

Columba, Columbidae: Latin columba (“dove, pigeon”). Ancient Greek κόλυμβος (kólumbos, “a diver”), from κολυμβάω (kolumbáō, “dive, plunge headlong, swim”).
ChalcophapsIn the Ancient Greek language: khalkos meaning "bronze" and phaps meaning "pigeon".

The common emerald dove (Emerald Dove, Chalcophaps indica, Cu luồng), also called Asian emerald dove and grey-capped emerald dove, is a widespread resident breeding pigeon native to the tropical and subtropical parts of the Indian Subcontinent and Southeast Asia.