Himalayan Cuckoo

Adult male Himalayan cuckoos are dark ashy-grey above with a brown, almost black tail that is spotted and tipped white. The legs and feet range between yellow and orange. The chin to breast is ash-grey, the lower breast and abdomen white with black bars, and the vent white to milky orange with varying bars. The eye-ring is yellow with yellow to brown irises, and the bill is black with an orange-yellow or green-yellow base. They are about 30–35 centimetres long and 70–140 grams. (Wikipedia, general species account)

A brood-parasitic cuckoo, it breeds from the Himalayas eastward to southern China and Taiwan and migrates to Southeast Asia and the Greater Sunda Islands for the winter. It was formerly known as the Oriental cuckoo and covered several subspecies over most of Asia, but in 2005 the group was shown to consist of three distinct lineages, the Himalayan, the Oriental proper and the Sunda cuckoo, now usually treated as separate species. (Wikipedia, general species account)