Scientific name: Mergus merganser
Nature Stars: 50
About: A large duck, part of a group known as 'sawbills' after their long narrow bills with saw-like 'teeth' for gripping fish. A long, streamlined bird.
How to identify: A big white diving duck, the male has a dark green head, a black back and a long red bill. The white sides and breast sometimes have a pink glow. The female is grey with a brown head and a white throat.
Where: Breeds on rivers in the north and west of Britain, winters on lakes and reservoirs.
Fantastic fact: Goosander nest in holes in trees along the riverbank.
Photograph credit: Photo credit tbc