GULL CALL.                            
  
                                          
 THE  SEAGULL  IS A METAPHYSICS TRICK;  A 
 WORLD-BUILDER'S  SHORTCUT,  TO DEFINE  A 
 SECTION  OF REALITY  AND IMPLY ITS SIZE: 
 PLACE A FLOCK OF  BIRDS AT  THE EDGE AND 
 MAKE  THEIR  CALLS  TESSELATE  OVER  THE 
 ENTIRE VOLUME                            
                                          
 A SEAGULL  CAN BE DEFINED  BY AS  LITTLE 
 AS  FIVE  VERTICES;  SIX  TRIANGLES.  (I 
 WOULD  RECOMMEND HANDLING IN  SWARMS  OF 
 AT LEAST A DOZEN BIRDS.)