Genus Apteryx is the smallest of the ratites - flightless birds such as ostriches, emus etc. However, hidden from science in the steep Korokoro valley is a small population of Apteryx flapalotii, the flighted kiwi. These elusive birds are rarely seen by humans but can be identified by their unusual high pitched call of dadwheresmytoyeggone wheresmytoyeggone repeated over and over through the night.
Although the wings of Apteryx flapalotii are similar in size to those of other kiwi they are able to fly, similarly to bumblebees, due to the extreme speed which they can flap these small wings. This grants them the ability to leave the ground but not to gain great height - you will never see a flighted kiwi soaring through the skies above Korokoro.
However most importantly this limited flight ability allows the flighted kiwi to nest in trees instead of in burrows like their more common cousins. Flighted kiwis build a nest in low tree branch forks and lay a single large egg (like other kiwi, the egg is large compared to their body size) and it is due to this nesting habit that you will most likely see evidence of Apteryx flapalotii
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