Progne chalybea 
            
               (L 7" Wt 1.2-1.8 oz)  6 oz)
          
         
            
               Intervales State Park
            
               10Oct2017
          
         
            
               In Central and much of So.
               America ...3 subspecies with
               different distributions.
          
         
            
               Progne in Greek mythology refers
               to Pandio who was turned into a
               swallow; chalybea in Latin means
               steel.
          
         
            
               No wild animals live so freely and
               in such variety and numbers
               among humans as do birds.
               (Jim Robbins)
          
         
            
               Paul A.
               Schwartz
               Macaulay
               Library