From: 07.013@scorecrow.com   
      
   On 02/12/2017 06:41, JAB wrote:   
   > The art of flying is a short film about "murmurations": the mysterious   
   > flights of the Common Starling. It is still unknown how the thousands   
   > of birds are able to fly in such dense swarms without colliding.   
      
   They do occasionally collide though. I've seen it on BBC footage from   
   one of their many nature programmes. What happens is that the two birds   
   simply carry on, hardly missing a beat.   
      
   And, presumably, the reason they can recover and carry on, and not cause   
   a catastrophic chain reaction of collisions, is that the 'dense swarm'   
   isn't really that dense - at least not in starling terms. It just looks   
   that way to us.   
      
   > Every   
   > night the starlings gather at dusk to perform their stunning air show.   
   > Because of the relatively warm winter of 2014/2015, the starlings   
   > stayed in the Netherlands instead of migrating southwards.   
   >   
   > https://vimeo.com/241007433   
   >   
      
   --   
   Bruce Horrocks   
   Surrey   
   England   
   (bruce at scorecrow dot com)   
      
   --- SoupGate-Win32 v1.05   
    * Origin: you cannot sedate... all the things you hate (1:229/2)