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Parekareka, the spotted shag.
NZ
Compared with typical cormorants, the spotted shag is a light-coloured bird. Its back is brown. Its belly is pale blue-grey (often appearing white), and the white continues up the sides of the neck and face, but the throat and the top of the head are dark blue-green. In the mating season, it has an obvious double crest. There is little sexual dimorphism.
Spotted shags feed at sea, often in substantial flocks, taking its prey from mid-water rather than the bottom. It is likely that pilchard and anchovy are important prey species. Original public domain image from Flickr
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