Hawaiian Goose

From 'Wikipedia': The Hawaiian Goose or Nēnē, Branta sandvicensis, is a species of goose endemic to the Hawaiian Islands. It shares a recent common ancestor with Branta canadensis, the Canada Goose. The official bird of the State of Hawaii, the Nēnē is exclusively found in the wild of the islands of Maui, Kauai and Hawa
This is the world's rarest goose and is cited on the IUCN Red List of Endangered Species as being 'Vulnerable' to extinction as less than 1,000 are thought to be in the wild. The bird was once believed to be common, with approximately 25,000 nenes living in Hawai'i when Captain James Cook arrived in 1778. However, hunting and introduced predators such as mongooses, pigs, and cats reduced the population to 30 birds by 1952. However, this species breeds well in captivity, and has been successfully re-introduced; in 2004 it was estimated that there were 800 birds in the wild, as well as 1000 in wildfowl collections and zoos.