Great Cormorant

Great cormorants have a broad distribution across Europe, Asia, Africa, Australia, and northeastern coastal North America. They inhabit both freshwater and marine environments, including lakes, rivers, estuaries, and coasts. Adults measure 84–90 centimetres, have wingspans of 130–160 centimetres, and weigh 2.6–3.7 kilograms. Their plumage is principally dark with a bluish gloss, browner wings, and a yellow facial and throat area edged with white. During breeding, short white plumes appear on the head and neck (Animal Diversity Web).

Fish smaller than 20 centimetres make up nearly all of the great cormorant's diet, although larger fish and occasional crustaceans are also eaten. The birds dive and pursue prey visually, usually in water less than 20 metres deep. Small fish may be swallowed underwater, while larger catches are brought to the surface. Males choose and defend nest sites, attracting females with wing-waving displays that expose white thigh patches. Pairs are monogamous, and some reunite across multiple breeding seasons (Animal Diversity Web).