Black swan

Black swan Cygnus atratus

ClassAves
OrderAnseriformes
FamilyAnatidae
Size1.6-2m wing-span
Weight4-6kg
Incubation34-36 days
Eggs4-6
Life-span25 years
Diet
aquatic plants

Habitat
lakes, rivers

Range
Australia, New Zealand


Black swan couples build large nests from branches and reeds, either floating on the water or on the ground. Both males and females incubate the eggs. Young swans can fly at about 5 or 6 months but stay with their parents until the following spring. Cygnets have a light-grey plumage that turns black by the time they are a year old.
 
To defend their territory, males assume an intimidating stance, spreading their wings, bending their neck into an S shape and puffing up their feathers while pretending to charge their enemy.




Status in the wild (Source: IUCN)

  • Not evaluated
    NE
  • Data deficient
    DD
  • Least concern
    LC
  • Near threatened
    NT
  • Vulnerable
    VU
  • Endangered
    EN
  •  Critically endangered
    CR
  • Extinct in the wild
    EW
  • Extinct
    EX

In the zoo