Orange-necked Partridge

The orange-necked partridge is about 27 cm (11 in) long and weighs about 241 g (8.5 oz). The forehead and crown are dusky, and the nape is mottled brown. A black band extends from the beak to the sides of the neck, and a whitish band extends from the eye to the neck-sides, becoming orange. There is also a black breast-band. The chin is pale buff, and the throat is rusty-orange. The breast is olive-brown, and the belly is greyish and whitish. The flanks have black and white scallops. The back and rump are olive-brown, with dark brown bars. The wing coverts have black and grey bands. The eyes are brown, the beak is black, and the legs are pinkish.

The orange-necked partridge is found in southern Vietnam and a small area in Mondulkiri, Cambodia. It lives in forest in hills at elevations of 120–600 m (390–1,970 ft), preferring bamboos. It also occurs in some disturbed habitats, including scrubs, bamboos and logged plantations. In Vietnam, it occurs in several national parks and state forest enterprises. All of the individuals recorded in a 2005 survey lived less than 2 km (1.2 mi) from water.

Little is known about this partridge's behaviour. The territorial calls are a repeated, accelerating prruu, becoming pwi at higher pitches, and also a series of fast tu notes. In duets, the other bird responds with tchew-tchew-tchew. The alarm call is a pher or phu.