Muntjac Deer Muntiacus reevesi

Muntjac Deer buck
Muntjac Deer doe
The Muntjac is Britain's smallest common deer. It is an Asian deer, from China, Taiwan and Japan, escaped from captivity (from Woburn) and quickly colonising parts of the country. It is similar in size to the Chinese Water Deer (both about 20 inches high at the shoulder) which is also feral in more limited parts of the UK. There are several species of Muntjac in the wild in Asia, including the Red Muntjacs, previously lumped together as the Common or Indian Muntjac, Muntiacus muntjak (link below).
Muntjac Deer buck with antlers
Muntjac Deer growing antlers The buck (male) has small antlers, re-grown each year.
Muntjac Deer with crab apple
The buck above is losing the initial "velvet" protective skin on his antlers (the gaping mouth is because he's eating a large crab apple fallen from a tree).
Muntjac Deer with antlers and canine tusk
Muntjac Deer with tusk
Muntjac Deer with tusk
The buck (male), above, has fully-grown antlers and is showing the long, downward-pointing canine tooth or tusk also used for defence.
Muntjac Deer doe
Muntjac Deer doe
Muntjac Deer
The doe (female), above, has no antlers. (Male and female smaller deer are generally called Buck and Doe, like rabbits; larger deer are called Stag and Hind.)
Muntjac Deer pair A pair.
Muntjac Deer size comparison with Fallow Deer Size comparison: Fallow Deer and Muntjac.
Muntjac Deer tail up Usual view of a Muntjac disappearing, tail up in alarm.
Due to its tropical origins, the Muntjac reproduces at any time of year even in a temperate climate. However, it does, in the UK at least, have a thicker, winter brown/brown-grey coat and a sleeker, redder brown summer coat.