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North-island-kaka South-island-kaka. The calls include a harsh ka-aa and a whistling u-wiia. [16] Kākā beak morphology also differs slightly from its closest relatives, the kea and kākāpō. The rhinotheca (upper part of the beak) of the kākā is narrower than the kākāpo and slightly longer. [17]
The kākāpō is the only flightless bird in the world to use a lek-breeding system. Usually, they breed only every 3–5 years when certain podocarp trees like rimu (Dacrydium cupressinum) mast abundantly. The kea is well adapted to life at high altitudes, and they are regularly observed in the snow at ski resorts.
Clianthus maximus, commonly known as kaka beak (kōwhai ngutu-kākā in Māori), is a woody legume shrub native to New Zealand's North Island. It is one of two species of Clianthus (kaka beak) and both have striking clusters of red flowers which resemble the beak of the kaka , a New Zealand parrot.
Endangered [10] Similar to the North Island kaka, but slightly smaller, brighter colours, the crown is almost white, and the bill is longer and more arched in males. [11] New Zealand: South Island Unbroken tracts of Nothofagus and Podocarpus forests 450–850 m AMSL in summer and 0–550 m in winter. [14] North Island kākā
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The two species are the critically endangered Clianthus puniceus which is now known in the wild only on Moturemu Island in the Kaipara Harbour, and the endangered Clianthus maximus. In a 2005 survey, only 153 plants of C. maximus were found (down from over 1000 in 1996), mainly in the East Cape region. [ 10 ]
This week's featured article is "The Endangered Species Act at 50" by Tate Watkins. This audio was generated using AI trained on the voice of Katherine Mangu-Ward .
The Chatham kaka became extinct in pre-European times, after Polynesians arrived at the island, between 1550 and 1700, and is only known from subfossil bones. [21] The mainland kaka is listed as endangered, [ 17 ] [ 18 ] and the kea is listed as vulnerable.