Tropicoperdix is a genus of three species of birds in the pheasant family, Phasianidae, referred to as East Asian forest partridges.

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";

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

2/ Vietnam partridge, Annam partridge, or Annam hill partridge (Gà so trung bộ, Tropicoperdix chloropus merlini)
Now usually considered a subspecies of the green-legged partridge (Tropicoperdix chloropus).
It is endemic to Vietnam in the dense moist lowland forests of central Vietnam (once called Annam).

3/ Chestnut-necklaced partridge (Gà so vòng cổ, Tropicoperdix charltonii)