﻿U. 
  S. 
  DEPARTMENT 
  OE 
  AGRICULTURE 
  

   BUREAU 
  OF 
  BIOLOGICAL 
  SURVEY— 
  BULLETIN 
  No. 
  21 
  

  

  C. 
  HART 
  MERKIAM, 
  Chief 
  

  

  THE 
  BOBWHITE 
  AND 
  OTHER 
  QUAILS 
  OF 
  THE 
  UNITED 
  STATES 
  

   IN 
  THEIR 
  ECONOMIC 
  RELATIONS 
  

  

  BY 
  

  

  SYLVESTER 
  D. 
  JUDD 
  

   Assistant, 
  Biological 
  Survey 
  

  

  WASHINGTON 
  

   GOVERNMENT 
  PRINTING 
  OFFICE 
  

  

  1905 
  

  

  