Kagu been voiced before this and dog control measures had been enacted in some areas in the 1980s. The kagu is listed as endangered (CITES I) and enjoys full protection in New Caledonia. It has been the subject of dedicated conservation efforts and is receptive to ex-situ conservation, breeding well in Nouméa Zoo. It is also prospering in Rivière Bleue Territorial Park, which has a pest-management programme and has been the site of releases into the wild of captive-bred birds. Recent research has shown that naturally occurring heavy metals in the soil may affect Kagu through their food supply. Kagu in
Kagu some range contraction due to hunting and predation by introduced species. Its original, pre-human distribution, and the extent to which it and its sister species "R. orarius" coexisted in lowland areas of New Caledonia, is still not fully understood and awaits further research into the subfossil record. Kagu are territorial, maintaining year-round territories of around 10–28 hectares (22–62 acres). Within the territory the pairs are solitary during the non-breeding season, and may have separate but overlapping foraging areas. Kagus make a range of different sounds, most commonly while duetting in the morning, each duet lasting about 15 minutes. The kagu's