In detail

The swan - profile


Characteristics

Surname: Swan
Latin name: Cygnus olor
class: Birds
size: 1.1 - 1.6m
mass: 7 - 12kg
Older: 10 - 20 years
Appearance: white plumage
Sexual dimorphism: No
Nutrition type: mainly herbivore (herbivor)
food: Aquatic plants, fish, frogs, shells, snails
distribution: Europe, Asia, North America
original origin:
Sleep-wake rhythm: diurnal
habitat: nutrient-rich lakes
natural enemies: Fox
sexual maturity: with 3 - 5 years
mating season: March May
breeding season: about 40 days
clutch size: 4 - 7 eggs
social behavior: Family Association
Threatened with extinction: No
Further profiles of animals can be found in the Encyclopaedia.

Interesting facts about the swan

  • Swans are loyal to their partner for a lifetime.
  • Diving for food is also known as purging. The swan dives his head down and tilts his body vertically upwards.
  • The mute swan is reliably identified by its orange-colored beak.
  • Swans can only breed on nutrient-rich lakes, as aquatic plants count as their main food. In low-nutrient lakes, the abundance of natural vegetation is not enough to feed the swans.
  • With a maximum weight of 12 - 13 kg swans belong to the heaviest, airworthy birds. Otherwise only pelicans reach a similar weight.
  • A female mute swan lays about 5 - 10 eggs. After about 40 days, the young hatch and are fed by both swans for up to six months.
  • Young birds still have a gray plumage compared to adult birds.
  • Swans often build a floating nest near the shore to protect them from egg-eating land animals. The building material is woody plants and plants.
  • During the annual plumage change (moulting), the swans can not fly for about 4 to 8 weeks.
  • The mute swan is considered as endangered with a worldwide population of more than 500,000 animals. In Germany, mute swans may even be shot during the hunting season.