A cygnet is a young swan. An adult male swan is a cob, and a female is called a pen. These birds mate for life. Swans can fly as fast as 60 miles per hour. Mating age for swans begin at 3-4 years old, and their eggs take 35-42 days to hatch. A group of swans is called a herd, a group in captivity is called a fleet. A swan can have up to 25,000 feathers on its body.

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