Amidst the serenity of a spring morning in the British wetlands, there is one particular noise that is eagerly awaited more than anything else. Resonant and metallic in its sound, it reverberates ...

The Eurasian bittern (Botaurus stellaris) is a reclusive bird belonging to the heron family. Close to the size of a chicken, bitterns are a mix of golden-brown mottled with delicate black and tan.