Budorcas taxicolor bedfordi. Adult male (should it be 'bull', 'ram', 'buck' or 'biily'? ).
Note for photographers: I visited this enclosure several times during my visits, but the group were always lying down at the top of the hill. It was only on my very last opportunity, shortly before closing time, that they were in position for photography - fortunately the light from the low sun illuminated them beautifully.