The genus Daulias contains the Nightingales, birds of plain plumage but of great powers of song. The one species that has been known to occur in India is of extreme rarity in that country, only two instances of its occurrence being known.
In Daulias the whole plumage is brown, somewhat ruddy on the tail, but making no approach to the chestnut exhibited in the preceding genera. The sexes are quite alike. The first primary is much smaller than in any other genus of this subfamily, being considerably less than a third of the length of the second. The tail is long and rounded, and the tarsus is also long.
The Nightingales frequent dense brushwood and are shy birds. They feed principally on the ground like Robins, and they nest near the ground in dense underwood.