Boissonneaua flavescens
            
               (L 4.25" Wt 0.26-0.31 oz)
          
         
            
               Buff in tail and under wing is
               distinctive...aggressively
               defends its territory against
               other hummingbirds.
          
         
            
               Bellavista Lodge
            
               13Jan2011
          
         
            
               Hummingbirds are the only group of
               birds with the ability to fly backward.
            
                   (Ridgely, Robert S. and Paul G. Greenfield)
          
         
         
            
               Flavescens is Latin for
               golden-yellowish.
          
         
            
               © Jay
               McGowan
            
               Macaulay
               Library