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Swans are the largest birds in the duck family. There are six different kinds of swans which have white bodies, but in a few parts of the world. there are black swans too. Swans are clever and remember people who have been kind or unkind to them! A frightened and really angry swan can break a man's leg its strong wings! Swans live on rivers and lakes. But in the winter months, some might live near the sea because salt water is usually a little warmer than river water. Swans don't usually fly very far from the place where they build their nests. It takes between 35 and 42 days for a baby swan, which is called a 'cugnet', to break open its eqg. A baby swan can be grey or white. Wild swans usually live for about seven years, but some live a lot longer. A swaneats underwater plants. It finds these by plunging its long neck deep into the water and its tail up into the air! Swans might also eat small frogs and insects.