Botaurus poiciloptilus Original caption: “New-Zealand Bittern, Botaurus pæciloptilus.”
English: Illustration of the Australasian Bittern.
Date Published 1888
Source New Zealand Electronic Text Centre
Author By J. G. Keulemans, in W.L. Buller's A History of the Birds of New Zealand. 2nd edition. Published 1888.
Source: https://commons.wikimedia.org/wiki/File:Bul02BirdP037.jpg
