One of the most
beautiful birds in the world, swans form monogamous pair bonds that last
for many years, and in some cases for their entire life. The size of
the clutch is usually 4 to 7 eggs. The cygnets learn to fly when their
flight feathers have fully grown. This happens at about four and a half
months of age. The birds reach maturity at about 2-3 years of age. By
this time, their plumage should be completely white.
