Black Sun

If you're going on a mini-vacation in Southern Jutland this spring or autumn, you might be lucky enough to experience the natural phenomenon of the Black Sun, when starlings gather in the south-west Jutland marshes in huge flocks for migration. The many starlings come from the countries around the Baltic Sea and from Norway. The large flocks of birds make fascinating patterns in the sky just before they land on the ground for the night - this phenomenon is called Black Sun and can in some cases contain as many as 1 million birds. The spring migration of starlings runs from February to mid-April, and the autumn migration begins in August and can last until December.