Part of a project of moving artworks powered by natural elements, this installation depicts a flock of birds made from the same material as the school of sardines, suspended on fishing lines in stop-motion. The movement of the water in the aquarium makes the birds vibrate, simulating flight. The work is closely connected to the school of sardines: both show how individual units come together in complex collective behaviors, without hierarchies, through simple and effective rules of self-organization. In the Piazza San Marco version, the flock symbolizes the people filling the squares, asserting their voice, and creating a superorganism with collective intelligence.