Vietnam Adventure Tours & Travel, Trekking, Cycling, Family Tours

Arborophila is a bird genus in the family Phasianidae. 
The genus has the second most members within the Galliformes after Pternistis, although Arborophila species vary very little in bodily proportions with different species varying only in colouration/patterning and overall size. 

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).
Arborophila: the Latin arbor, arboris meaning "tree" with the Ancient Greek philos meaning "-loving".

1/ Orange-necked partridge (Gà so cổ hung/cam, Arborophila davidi)
2/ Common hill partridge, necklaced hill partridge, or simply hill partridge (Gà so họng đen, Arborophila torqueola) 
3/ Rufous-throated partridge (Gà so họng hung, Arborophila rufogularis)
4/ Bar-backed partridge (Gà so họng trắng, Arborophila brunneopectus), also known as the brown-breasted hill-partridge

The genus Bambusicola in the family Phasianidae includes bamboo partridges, sometimes called ridge partridges which are medium-sized non-migratory birds.

1/ Mountain bamboo partridge (Gà so, Bambusicola fytchii)

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)