Muntjac were brought from China to Woburn Park in Bedfordshire in the early 20th century. They are now widespread and increasing in number and range. Deliberate releases and escapes from Woburn, Northamptonshire and Warwickshire led to the establishment of feral populations. Movement and release by humans led to their rapid spread across south and central England and Wales, however, north of the Humber distribution is patchy but reaches close to the Scottish border.
Muntjac like deciduous or coniferous forests, preferably with a diverse understorey. They are also found in scrub and overgrown urban gardens.