﻿LLUSTRATIONS. 
  

  

  PLATES. 
  

  

  Page. 
  

  

  Plate 
  I. 
  Ruffed 
  grouse 
  (Bonasa 
  umbellus) 
  Frontispiece. 
  

  

  II. 
  Sage 
  grouse 
  ( 
  Centrocercus 
  urophasianus) 
  24 
  

  

  6 
  

  

  