A tool-user...will drop bait
            
               (bread, insects, worms, etc) into
            
               water and catch attracted fish.
          
         
            
               Green heron cannily arches her neck
            
               as food moves in mudflat water.
            
               In an instant her arrow will strike:
            
               muscles tense, neck feathers fluffed,
            
               toes curled in mud, neck a strung bow.
            
               A Natural.
            
                                (by John Caddy)