Brown-cheeked rail or eastern water rail (Gà nước Ấn Độ, Rallus indicus)

The brown-cheeked rail or eastern water rail (Rallus indicus) is a species of bird in the family Rallidae. 
The bird breeds in northern Mongolia, eastern Siberia, northeast China, Korea and northern Japan, and winters in southeast Asia.

Gruiformes, Gruidae: from the Latin word grus meaning "crane".
Rallidae: from rallus new Latin for rail, an aquatic bird.
The genus name Rallus comes from the pre-binomial Latin name Rallus aquaticus for the water rail, or possibly from French rale, related to a rasping sound, with potential roots connecting to Greek krekein (to weave) for the bird's sound/motion, but the exact etymology of the word is uncertain.

Aquaticus is a Latin word meaning "of water," "belonging to water," or "living/growing in water," derived from aqua ("water"), used to describe things like water-dwelling animals, plants, or habitats.