Little Pied Cormorant

It is a small short-billed cormorant usually black above and white below with a yellow bill and small crest, although a mostly black white-throated form predominates in New Zealand. Until recently, most authorities referred to this species as Phalacrocorax melanoleucos. This species is known as the little pied cormorant in Australia, and as the little shag or by the Māori name of kawaupaka in New Zealand. The term white-throated shag is also reserved for the melanistic form there. (Wikipedia, general species account).

The little pied cormorant, little shag or little pied shag (Microcarbo melanoleucos) (Māori: kawaupaka) is a common species of Australasian waterbird, found around the coasts, islands, estuaries, and inland waters of Australia, New Guinea, New Zealand, Timor-Leste and Indonesia, and around the islands of the south-western Pacific and the subantarctic. Since then, molecular work by Sibley and Ahlquist showed the little pied and long-tailed cormorants formed a group which had diverged early on from other cormorants. (Wikipedia, general species account).