Bushwren The Bushwren was a small bird, native to New Zealand, which was characterized by nesting on or near the ground. It was found in abundance throughout the country till the introduction of mustelids - predatory mammal from weasel family, was introduced on the Island. The first half of the 20th century was marked by rare sightings of Bushwren. A subspecies of the bird, Stead's Bushwren, found on Stewart Island, got extinct due to excessive predation by the feral cats. As the last attempt to revive the population, they were transferred to Kaimohu Island, where the last sighting took place in 1972.
