Little Mangere Island or Tapuaenuku is part of the Chatham Islands

Chatham Islands

The Chatham Islands are an archipelago and New Zealand territory in the Pacific Ocean consisting of about ten islands within a radius, the largest of which are Chatham Island and Pitt Island. Their name in the indigenous language, Moriori, means Misty Sun...

 chain, located 800 kilometres (497 mi) east of New Zealand

New Zealand

New Zealand is an island country in the south-western Pacific Ocean comprising two main landmasses and numerous smaller islands. The country is situated some east of Australia across the Tasman Sea, and roughly south of the Pacific island nations of New Caledonia, Fiji, and Tonga...

's South Island

South Island

The South Island is the larger of the two major islands of New Zealand, the other being the more populous North Island. It is bordered to the north by Cook Strait, to the west by the Tasman Sea, to the south and east by the Pacific Ocean...

. The island lies off the west coast of Pitt Island, 45 kilometres (28 mi) south-east of the chain's main settlement, Waitangi

Waitangi, Chatham Islands

Waitangi is the main port and settlement on the Chatham Islands. It is located on the southern shore of Petre Bay, on the west coast of the main island...

, on Chatham Island. Less than 15 hectares (37.1 acre) in size and 214 metres (702 ft) tall, the island is surrounded by steep cliffs.

Little Mangere is privately owned and was once the last refuge of the few remaining Black robin

Black Robin

The Black Robin or Chatham Island Robin is an endangered bird from the Chatham Islands off the east coast of New Zealand. It is closely related to the New Zealand Robin . It was first described by Walter Buller in 1872. The binomial commemorates the New Zealand botanist Henry H. Travers...

 until they were transferred to nearby Mangere Island

Mangere Island

Mangere Island is part of the Chatham Islands archipelago, located east of New Zealand's South Island and has an area of . The island lies off the west coast of Pitt Island, south-east of the main settlement in the Chathams, Waitangi, on Chatham Island....

 and South East Island/Rangatira

South East Island/Rangatira

South East Island/Rangatira is the third largest island in the Chatham Islands chain, and covers an area of . It is located east of New Zealand's South Island...

 as part of a species recovery plan in the early 1980s. The island hosts the largest sooty shearwater

Sooty Shearwater

The Sooty Shearwater is a medium-large shearwater in the seabird family Procellariidae. In New Zealand it is also known by its Māori name tītī and as "muttonbird", like its relatives the Wedge-tailed Shearwater and the Australian Short-tailed Shearwater The Sooty Shearwater (Puffinus griseus) is...

(Puffinus griseus) colony in the Chathams group.