pen
Quick Summary
A pen is a female swan. Swans are large waterfowl known for their long necks and graceful swimming. They are found in the Northern Hemisphere and include species like the mute swan and trumpeter swan. Male swans are called cobs, and females are called pens. Both sexes look alike. Swans mate for life and typically lay about six unmarked eggs, which the pen incubates while the cob guards them. The young, called cygnets, are cared for by their parents for several months. Swans feed on aquatic plants by dabbling and can fly with slow wingbeats, often migrating in formations.1
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