Something amazing happened above Utrecht, The Netherlands. This man was just filming the sky and filmed accidentally something amazing.
Have you ever seen a cloud of birds doing something very artistic? I didn't.. This man had to be so lucky when he filmed this cloud of birds doing something I never knew they could do.
A lot of people call it 'The beauty of chaos' but the real reason they're doing this is to protect themselves against a predator bird. The birds are trying to make themselves as big as possible to scare the predator away.
If you look close you will see one bird alone, that's the predator who is bigger and stronger that the rest of the birds, as a result of this we are lucky to attend a beautiful air ballet.