Filmed in Ireland, on the River Shannon, and posted at Vimeo, where it has garnered over 700 comments. The video is particularly nice for the combination of the aerobatics, the music chosen to replace wind sounds, and the steady hand of the young woman filming from a canoe! I love the simply and beauty of this movie...
Mathematical analysis of flock dynamics show how each starling’s movement is influenced by every other starling, and vice versa. It doesn’t matter how large a flock is, or if two birds are on opposite sides. It’s as if every individual is connected to the same network.
That phenomenon is known as scale-free correlation, and transcends biology. The closest fit to equations describing starling flock patterns come from the literature of “criticality,” of crystal formation and avalanches — systems poised on the brink, capable of near-instantaneous transformation. More here