Rusa Deer were imported from New Caledonia in 1908, under the mistaken belief that they were Sambar Deer. The small colony was positively identified in 1955 by an American biologist. The confusion is understandable, as the Rusa and Sambar are closely related and have a close resemblance, but the former is in fact smaller.
A distinctive feature is the white chest, neck, and underparts. Rusa antlers are typically of only six points (three each side).