Cinnamon-headed green pigeon 
(Cu xanh cổ nâu, Treron fulvicollis)

The cinnamon-headed green pigeon (Treron fulvicollis) is a species of bird in the family Columbidae. The bird is found in Brunei, Indonesia, Malaysia, Myanmar, Singapore, and Thailand, Vietnam.

Columbidae, Columba: Latin columba (“dove, pigeon”). Ancient Greek κόλυμβος (kólumbos, “a diver”), from κολυμβάω (kolumbáō, “dive, plunge headlong, swim”).
Pigeon is a French word that derives from the Latin pīpiō, for a "peeping" chick;
Dove is an ultimately Germanic word that refers to the bird's diving flight.
The genus name Treron is from the Ancient Greek trērōn meaning "pigeon" or "dove".
fulvicollis Latin fulvus tawny; Latin -collis -necked (Latin collum neck).