The Somerset Wildlife Trust is asking people to listen to hear the boom of a bittern as it tries to track them for a study. The distinctive boom of the male can be heard up to two miles (3.2km) away.
The numbers of one of Britain's rarest birds, the bittern, have increased in the East Anglian Fens, the RSPB has revealed. Newly created habitats are helping the bittern, known for its "booming" call, ...
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