Tundra swan

Common card · No. 220558

The tundra swan (Cygnus columbianus) is a species of swan which breeds in the arctic, and overwinters in North America, Europe, and Asia. It is the smallest of the Holarctic swans, at 115–150 cm (45–59 in) in length, 168–211 cm (66–83 in) in wingspan and 3.4–9.6 kg (7.5–21.2 lb) in weight. Typically, the plumage of adults is entirely white, with solid black feet, a black beak that has varying amounts of yellow, and a thin streak of pink along the mouthline, although colour variation is common. In the summer, they mainly eat aquatic vegetation, while at other times of year they often eat leftover crops, such as potatoes. They have few natural predators, although sometimes Arctic foxes, parasitic jaegers, and glaucous gulls will prey upon their eggs and chicks. Their main cause of death is poaching. During the breeding season, tundra swans become aggressive, and may attack passing animals and other tundra swans; outside of the breeding season, they can form groups. They make a high-pitched...

Read on Wikipedia · Image Maga-chan, CC BY-SA 2.5