Green-legged partridge, also known as the scaly-breasted partridge or green-legged hill-partridge
(Gà so ngực gụ, Tropicoperdix chloropus)

Phasianidae from Phasianus: Latin for "pheasant", derived from the Ancient Greek φἀσιἀνος, phāsiānos, meaning "(bird) of the Phasis", the River Phasis (now the Rioni) in Colchis on the east coast of the Black Sea (now western Georgia).

trópico m (plural trópicos), tropic (either of the two parallels north and south of the equator);
Perdix (Ancient Greek: Πέρδιξ means "partridge";
the Greek chloropus (khloros χλωρός green or yellow; pous πούς foot).

The green-legged partridge, also known as the scaly-breasted partridge or green-legged hill-partridge, is a bird species in the family Phasianidae. 
The Vietnam partridge, Annam partridge, or Annam hill partridge, Tonkin Partridge, Tropicoperdix chloropus merlini, is now usually considered a subspecies of the green-legged partridge.