Yellow-legged buttonquail (Cun cút chân vàng, Cun cút lưng hung, Turnix tanki)
resemble, but are unrelated to, the true quails.

The yellow-legged buttonquail (Turnix tanki) is a buttonquail, one of a small family of birds which resemble, but are unrelated to, the true quails.

The genus name is an abbreviation of the genus Coturnix.
Turnicidae is from Turnix abbreviation from genus Coturnix, quail(Coturnix is the Latin for the common quail); coined to reflect the quail-like appearance and lack of hind-toe.
hemipodes: Greek hemi half, semi; podes from Greek pous, podos foot (Latin pes).