The main predators of kiwis are introduced mammalian predators, such as stoats, ferrets, weasels, cats, dogs, rats, and possums. These predators pose a major threat to kiwis as they prey on eggs, chicks and adult kiwis. Other predators include birds of prey such as the harrier hawk and the morepork, which hunt adult kiwis, and large snakes, which are thought to have preyed upon kiwis in the past.