Muntjac Taiwan and Southern China. They are also found in the lower Himalayas (Terai regions of Nepal and Bhutan) and in some areas of Japan (the Bōsō Peninsula and Ōshima Island). They have been introduced to Britain and Ireland. A large invasive species population of barking deer exists in the United Kingdom. Reeves's muntjac has been introduced to the United Kingdom, with wild deer descended from escapees from the Woburn Abbey estate around 1925. Muntjac have expanded very rapidly, and are now present in most English counties and have also expanded their range into Wales, although they are less common in
Indian muntjac is among the most widespread but least known of all mammals in southern Asia. It is found in Bangladesh, southern China, northeastern India, Sri Lanka, Nepal, Pakistan, Cambodia, Vietnam, the Malay Peninsula, the Riau Archipelago, Sumatra, Bangka Island, Belitung, Java, Bali, and Borneo. The Indian muntjac is found in tropical and subtropical deciduous forests, grasslands, savannas, and scrub forests, as well as in the hilly country on the slopes of the Himalayas. They are found at altitudes ranging from sea level up to . They never wander far from water. "Muntiacua muntjac" is a terrestrial mammal. A close survey of