Ecology and management of the Black StiltHimantopus novaezelandiae

Abstract

New Zealand's endangered Black StiltHimantopus novaezelandiaeis confined largely to South Island's upper Waitaki River Basin, where it breeds on braided riverbeds and associated wetlands. It is under pressure from nest predators (particularly introduced carnivorous mammals), habitat loss and hybridization with the Pied StiltH. himantopus leucocephalus. Management focuses on localized predator control, habitat enhancement, egg manipulation and cross-fostering, and more recently captive breeding and release. Future management may be extended to establish an island population.