Adult Description:
- Dorsal Plumage: Dark grayish-black, with a slight greenish sheen.
- Wings and Tail: Slightly darker than the dorsal plumage, with a more pronounced greenish sheen. The tips of the tail feathers are white.
- Throat, Chin, and Breast Plumage: The feathers are loose (not tightly packed together) and have dark shafts that are easily visible.
- Chest and Abdomen: Gray.
- Remaining Ventral Surface: Pale grayish-black.
- Supercilium: A narrow white stripe comprised of small, stiff feathers with pale feather shafts.
- Eyes: Brown or red.
- Periocular Skin: Reddish-purple.
- Bill: Grayish-green, with reddish bases and edges.
- Legs: Dark grayish-black.
Measurements:
- Wing: 140 – 163 mm
- Tail: 352 – 394 mm
- Tarsus: 39 mm
- Bill: 30 – 32 mm
Distribution:
This subspecies is found in Myanmar, Southern Thailand, Cambodia, Southern Vietnam, and Malaysia.
Vietnam:
This species is present in the South Central Coast and Southern regions. They commonly inhabit forest edges and areas with dense vegetation.