The Chatham Pigeon, Chatham Island Pigeon, or Parea (from Moriori

Moriori language

Moriori is an extinct Malayo-Polynesian language most closely related to New Zealand Māori. It is the native language of the Moriori, the indigenous people of the Chatham Islands , which are east of New Zealand and under its sovereignty....

) (Hemiphaga chathamensis) is a bird

Bird

Birds are feathered, winged, bipedal, endothermic , egg-laying, vertebrate animals. Around 10,000 living species and 188 families makes them the most speciose class of tetrapod vertebrates. They inhabit ecosystems across the globe, from the Arctic to the Antarctic. Extant birds range in size from...

 endemic

Endemic (ecology)

Endemism is the ecological state of being unique to a defined geographic location, such as an island, nation or other defined zone, or habitat type; organisms that are indigenous to a place are not endemic to it if they are also found elsewhere. For example, all species of lemur are endemic to the...

 to 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...

 in 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...

. Growing to 800g in weight and 55 cm in length, the Chatham Pigeon is a relative of the Kererū

Kereru

The New Zealand Pigeon or kererū is a bird endemic to New Zealand. Māori call it Kererū in most of the country but kūkupa and kūkū in some parts of the North Island, particularly in Northland...

 or New Zealand Pigeon (Hemiphaga novaeseelandiae).

While not rated by IUCN (where considered a subspecies of the Kererū), it is a threatened species, with a population of around 150 birds largely restricted to the southern forests of Chatham Island/Rekohu

Chatham Island/Rekohu

Chatham Island is by far the largest island of the Chatham Islands group, in the south Pacific Ocean off the eastern coast of New Zealand, — not exactly "halfway between the equator and the pole, and right on the International Date Line" but close enough for tourism marketing purposes...

 (particularly those around the Tuku River).