Info: During spring in Denmark, approximately half an hour before sunset, flocks of more than a million starlings gather to join in these incredible formations. This phenomenon is called Black Sun and can be witnessed in early spring throughout the marshlands of western Denmark, from March through to the middle of April. The starlings migrate from the south and spend the day in the meadows gathering food, sleeping in the reeds during the night.
The best place to view this amazing aerial dance is in the place called "Tondermarsken," where these pictures were taken.