New Zealand – Sir Apirana Ngata – Kokako – $50 – 2007 – Pick 188 – Crisp Uncirculated – The Kokako (Callaeas cinereus) is a forest bird which is endemic to New Zealand. It is slate-grey with wattles and a black mask. Previously widespread, Kokako populations throughout New Zealand have been decimated by the predations of mammalian invasive species such as possums, stoats, cats and rats and their range has contracted significantly. In the past this bird was called the New Zealand Crow even though it is not a crow at all, but looks like one from a distance. This polymer banknote was issued in 2007 and is in Crisp Uncirculated condition.