The great cormorant(Phalacrocorax carbo), is a member of the cormorant family of seabirds.[2] It is a large black bird which breeds in much of the Old World and the Atlantic coast of North America. There is a lot of variation in its size in different parts of the world.Weight is reported to vary from 1.5 kg (3.3 lb)[3] to 5.3 kg (12 lb).[4]
↑It is also known as the great black cormorant across the Northern Hemisphere, the black cormorant in Australia, the large cormorant in India and the black shag in New Zealand.
↑Ribak, Gal; Weihs, Daniel & Arad, Zeev 2005. Water retention in the plumage of diving great cormorants Phalacrocorax carbo sinensis. Journal of Avian Biology36 (2): 89. [1]