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 male bittern's booming mating call is evidence of the species' recovery in the UK Record numbers of bittern booming calls have been heard in Yorkshire during the bird's breeding season, the RSPB ...

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, ...

The boom is getting louder as researchers discover more bitterns in the wetlands of UK, since the heron's disappearance many years ago. Bitterns are bright brown herons with dark streaks, flying on ...