sentences:  From a captive population of around 6–10 pairs, over 400 captive-bred juveniles have been released into the wild.Shore plovers are endangered, with a world population of around 200 birds.The species survived on only one island, Rangatira, in the Chatham Islands, from where it has since been introduced to other offshore islands, such as Mangere Island in the Chathams, Mana Island near Wellington and Motutapu near Auckland.