Gavia arctica, also known as the Arctic loon which has a grey head and hindneck, with a black throat and a large black patch on the fore-neck, both of which have a soft purple gloss.
Length : 70 cm (28 in)
Weight : 1.3 to 3.4 kilograms (2.9 to 7.5 lb)
Population :275,000-1,500,000 individuals
Habitat: Arctic loon is a migratory aquatic bird found in the northern hemisphere, primarily breeding in freshwater lakes in northern Europe and Asia. When breeding, it is found in the area around isolated, deep freshwater lakes larger, especially those with inlets, as it prefers to face only small stretches of open water.
Diet: It feeds on fish and sometimes insects, molluscs, crustaceans, and plant matter.