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In May the swans make a nest in some reeds by the lake. Why is the swan sitting on the eggs
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She is sitting on the eggs to keep them warm and safe. There is a hungry fox around who would like to eat the eggs.  

 
























Eggs
When the nest is ready the mum swan will lay the eggs. She sits on the eggs to keep them warm for 5 weeks. The dad swan looks out for danger and keeps them safe.