kereru

:  a large, fruit-eating pigeon (Hemiphaga novaeseelandiae) native to New Zealand that has metallic purplish-green upperparts and white underparts Apart from their size and striking iridescent-green colouring, kereru are known for their comical antics in spring and summer when they become drunk from gorging on berries which ferment in their stomachs. — New Zealand Herald, 26 July 2006 —called also kuku, kukupa, New Zealand pigeon, wood pigeon