During the breeding season – only once every three to five years – male kākāpō gather in a central arena. Each male creates a booming bowl – a basin – and a network of tracks leading to it. They sit in their bowls night after night from December to March, producing a deep boom to attract females. Kākāpō boom by inflating air sacs in their chest, which act as resonating chambers. These deep calls carry over a long distance. They are alternated with a series of higher ‘chinging’ calls which help the female locate the male more precisely.
Using this item
This item has been provided for private study purposes (such as school projects, family and local history research) and any published reproduction (print or electronic) may infringe copyright law. It is the responsibility of the user of any material to obtain clearance from the copyright holder.