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.