About Enicurus ruficapillus Temminck, 1832
The chestnut-naped forktail (scientific name Enicurus ruficapillus Temminck, 1832) measures 18 to 20 cm (7.1–7.9 in) in length and weighs an average of 27 g (0.95 oz). Males have a chestnut-colored head, a white forehead, and a black mask extending in front of the eye. Their wings are black with a white wing-bar; the breast is white with black barring that fades toward the white belly. The rump is white, while the tail is black with white stripes and a white tip. Females match the description of males except that their back and mantle are chestnut. This species calls while in flight, producing either a single whistle or a series of three whistles. It inhabits clear rivers and streams within lowland and hill rainforests, and can also be found in secondary scrub, dry ridges, and along logging roads. It occurs from sea level up to 1,300 m (4,300 ft) across most of its range, with the exception of southern Thailand, where it only occurs up to 900 m (3,000 ft).
