The Cretto di Burri is a white concrete sculpture located on the ancient small town of Gibellina in Sicily. Alberto Burri built this monumental landscape artwork on the ruins of the town, destroyed by an earthquake.
The murmurations phenomenon concerns the gregarious behavior of birds. The individuals in a group act together, with no direction planned, forming waves of birds in the sky. This flock characterize social species, their behavior is similar to fish schools or swarms of insects.