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A stoat in the Ardennes in Belgium, within its natural range. The stoat (Mustela erminea) was introduced into New Zealand to control introduced rabbits and hares, but is now a major threat to the native bird population. The natural range of the stoat is limited to parts of the Northern Hemisphere.
In New Zealand, the stoat feeds principally on birds, including the rare kiwi, kaka, mohua, yellow-crowned parakeet, and New Zealand dotterel. [44] Cases are known of stoats preying on young muskrats. The stoat typically eats about 50 g (1.8 oz) of food a day, which is equivalent to 25% of the animal's live weight. [45]
Approximately 71% of the bird species breeding in New Zealand before humans arrived are widely accepted as being endemic. [ 1 ] There is also a smaller group of species are not fully endemic, but are breeding endemic, in that they breed only in New Zealand, but migrate or range elsewhere.
The Wildlife Act 1953 made hunting of white herons illegal, and adult birds have no natural predators in New Zealand, though chicks are preyed on by stoats and Australasian harriers. [5] There are over 150 traps in the reserve, run by White Heron Sanctuary Tours, to protect the colony from stoats, rats and possums. [16]
The Field Guide to the Birds of New Zealand (rev. & updated 4th ed.). New Zealand: Penguin. ISBN 978-0143570929. Checklist Committee Ornithological Society of New Zealand (2010). "Available online as a PDF" (PDF). Checklist of the birds of New Zealand, Norfolk and Macquarie Islands, and the Ross Dependency, Antarctica (4th ed.). New Zealand: Te ...
The black stilt (Himantopus novaezelandiae) or kakī is a wading bird found in New Zealand. It is one of the world's rarest birds, with 169 adults surviving in the wild as of May 2020. It is one of the world's rarest birds, with 169 adults surviving in the wild as of May 2020.
This is the list of the birds of New Zealand. The common name of the bird in New Zealand English is given first, and its Māori-language name, if different, is also noted. The North Island and South Island are the two largest islands of New Zealand. Stewart Island is the largest of the smaller islands.
Illustration of Sterna striata from A History of the Birds of New Zealand, Buller,1888. The white-fronted tern is described as an average-sized bird. Its dimensions are 35–43 cm (14–17 in) in length, with a wingspan between 79 and 82 cm (31 and 32 in); the male weighs on average 130 g (4.6 oz). [3]