Eurasian bittern

Heard, but not seen

An Eurasian bittern in flight, photo Tomi Muukkonen

If you’re wondering why you’re hearing the sound of a ship’s foghorn coming from the middle of the reed beds in the spring, it’s because of the Eurasian bittern (Botaurus stellaris). The Eurasian bittern lives completely hidden among the reeds, and only flies around in the twilight hours. It does not nest every year in Vanhankaupunginlahti.

Kauluhaikara ruovikon kätkössä, kuva Eero Haapanen.

An Eurasian bittern hiding in the reeds, photo Eero Haapanen.