Great Northern Diver
Tweet of the Day is a series of fascinating stories about our British birds inspired by their calls and songs.
Chris Packham presents the story of the great northern diver. The wailing cries of a great northern diver echo around the lakes where they live. If the bird sounds striking, then its appearance is just as dramatic....a dagger bill, sleek submarine-shaped body, it's plumage covered in graphic patterns of black and white stripes, dots and dashes.