About Turdus dissimilis Blyth, 1847
The black-breasted thrush (Turdus dissimilis Blyth, 1847) measures 22 to 23.5 centimetres (8.7 to 9.3 inches) in total length, including the tail. While lower body parts are the same color in both sexes, male and female black-breasted thrushes differ in their upper and middle body regions. For males, the area stretching from the head to the back of the neck and breast is black, and the rest of the upper body is slate gray. Females are gray-brown from the eyes to the tail, and the area from the throat to the breast is a diffused shade of buff. This species ranges from north-eastern India to northern Vietnam, and can also be found in hilly areas of southwestern China. Its preferred habitat is moist tropical and subtropical montane forests. Less important secondary suitable habitats include tropical and subtropical dry forests for resident native populations, tropical and subtropical moist shrubland, and mangroves located above the high tide line. Black-breasted thrushes typically occur at relatively high elevations between 1,220 metres (4,000 ft) and 2,500 metres (8,200 ft), and descend to lower altitudes around 200 metres (660 ft) during the winter. The black-breasted thrush is listed as Least Concern on the IUCN Red List, despite its population having declined over the past ten years. The population reduction is not rapid enough to qualify the species for Vulnerable status under IUCN population trend criteria, which require a decline of more than 30% over ten years or three generations. The ongoing population decline is attributed to continued destruction and degradation of the species' natural habitat. The black-breasted thrush's distribution range covers more than 752,000 square kilometres (290,000 sq mi).
