Ducula bicolor (Pied Imperial-pigeon) is not known.
Listed in the International Union for Conservation of Nature (IUCN) ver 3.1: Red List of Birds 2010.
Listed in China's national key protected animal class: second class
It is distributed in Indochina Peninsula and southeast coastal areas of China, including Myanmar, Vietnam, Laos, Cambodia, Thailand, southeast coastal areas of China, Hong Kong region of China and Hainan Island. The Pacific islands, including China's Taiwan Province, Dongsha Islands, Xisha Islands, Zhongsha Islands, Nansha Islands and the Philippines, Brunei, Malaysia, Singapore, Indonesia's Sumatra, Java Islands, and Papua New Guinea. Wallace Zone refers to the area east of the traditional Wallace Line (from the eastern side of Mindanao through the Makassar Strait between Bali and Lombok) and west of Papua New Guinea, including the Indonesian islands of Sulawesi, Nusa Tenggara Islands, the Southwest Islands, the Moluccas (Maluku Islands), East Timor and other islands.