For 60 million years, in New Zealand, there were no mammal predators or browsers of plants, native flightless birds (e.g. Kiwi and Moa), unusual creatures (e.g. Tuatara and Giant Wētā) and unusual plants were able to evolve and thrive. Today, New Zealand has 825 endemic species, so the introduction of invasive mammals when the natives have not adapted to defend themselves is catastrophic.

Originally, TAHI had just about every introduced mammalian species—and our forests had no understory, no regeneration, and a canopy that was heavily browsed. Since 2004, an intense programme of stock removal and invasive species management has been underway covering our land and neighbouring properties. 

20 years later, an abundant natural regeneration in our forests and shrublands, as well as recovery of the forest canopy, has welcomed home native birdlife. Once absent, our native birds and creatures are now thriving again.