The Muntjac found in England  (M.reevesi) is a true survivor often describe as a walking fossil – the history of most deer can be tracked back to 1 million years or so – the Muntjac precedes this and has walked the Earth with creatures such as giant beavers and Mastodons. Its skull bears testimony to that fact. In England, they escaped in the 1920’s from the Woburn Estate in Bedfordshire and have spread ever since (current estimates are 100,000 expanding at 10% per year – though that is probably an underestimate).
They can be a frustrating quarry, seldom remaining still for a for more than a second or two, but a creature that over the last 20 years has been recognised by stalkers as a truly worthy and respected quarry. 

There is no close season, the female on giving birth (after the gestation period  of 7 months), will probably be pregnant yet again within 48 hours after birth. The new born fawn that is by her side will be sexually active by the time it is 8 months old…… A potential breeding machine, however predation whether it be by foxes, humans or natural events do take there toll.