The black stilt or kakī (Māori), Himantopus novaezelandiae, is found only in New Zealand, and is the world's rarest wading bird: less than 100 adults survive in the wild. Adult kakī have distinctive black plumage, very long red legs, and a long thin black bill. Black stilts currently breed only in the Mackenzie Basin in the South Island, and are threatened by introduced feral cats and ferrets, as well as habitat degradation from hydroelectric dams, agriculture, and invasive weeds.