﻿EXPLANATION 
  OF 
  FIGURES 
  ILLUSTRATING 
  BIRD 
  TONGUES 
  

  

  Plate 
  1 
  

  

  No. 
  1. 
  Planesticus 
  migratorius. 
  

  

  2. 
  Dendroica 
  tigrina. 
  

  

  3. 
  Icterus 
  icterus. 
  

  

  4. 
  Chlorophanes 
  spiza. 
  

  

  5. 
  Coereba 
  bananivora. 
  

  

  6. 
  Myzomela 
  rubratra. 
  

   34 
  

  

  