OK this is an Australasian Darter, rather than a cormorant (thank you Stewart).
Anhinga novaehollandiae (Anhingidae) - Because of its long and slender neck, the Australasian Darter is sometimes called the snakebird. Usually inhabiting freshwater wetlands, darters swim with their bodies submerged beneath the water’s surface, with only the sinuous neck protruding above the water, enhancing its serpentine qualities. Darters forage by diving to depths of about 60 centimetres, and impaling fish with its sharp, spear-like beak. Small fish are swallowed underwater, but larger ones are brought to the surface, where they are flicked off the bill (sometimes into the air) and then swallowed head-first.
[The great cormorant (Phalacrocorax carbo), known as the great black cormorant across the Northern Hemisphere, the black cormorant in Australia, the large cormorant in India and the black shag further south in New Zealand, is a widespread member of the cormorant family of seabirds. It breeds in much of the Old World and the Atlantic coast of North America.
The great cormorant is a large black bird, but there is a wide variation in size in the species wide range. Weight is reported to vary from 1.5 kg to 5.3 kg. Males are typically larger and heavier than females, with the nominate race (P. c. carbo) averaging about 10% larger in linear measurements than the smallest race in Europe (P. c. sinensis). Length can vary from 70 to 102 cm and wingspan from 121 to 160 cm. They are tied as the second largest extant species of cormorant after the flightless cormorant, with the Japanese cormorant averaging at a similar size. Great cormorants are mostly silent, but they make various guttural noises at their breeding colonies.]
The Werribee River is a perennial river of the Port Phillip catchment that is located on the plain West of Melbourne, Victoria, Australia. The headwaters of a tributary, the Lerderderg River, are north of Ballan near Daylesford and it flows across the basalt plain, through the suburb of Werribee to enter Port Phillip. A linear park follows the Werribee River along much of its course. In total the Werribee River completes a journey of approximately 110 kilometres.
This post is part of the Wednesday Waters meme,
and also part of the Waterworld Wednesday meme,
and also part of the Outdoor Wednesday meme,
and also part of the Wordless Wednesday meme,
and also part of the Wild Bird Wednesday meme.