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Black Swan. The swans are the largest members of the waterfowl family Anatidae, and are among the largest flying birds. The largest species, including the mute swan, trumpeter swan, and whooper swan, can reach length of over 60 inches & weigh over 33 pounds. Their wingspans can be almost 10 ft. Compared to the closely related geese, they are much larger in size: feet and necks. They also have a patch of unfeathered skin between the eyes and bill in adults. Young are called Cygnet
Swans. Male swan (called a cob) Female (called a pen) Swans usually form pairs for life. The young or baby swans are called cygnets. Swan nests are usually a large pile of reeds and water plants. Female usually lays four to six eggs. She incubates them until they hatch about 30-35 days later.The male guards the nest from predators and may take over incubation so that the female can feed. The babies emerge short-necked and thickly downed.