﻿U. 
  S. 
  DEPARTMENT 
  OF 
  AGRICULTURE 
  

  

  BUREAU 
  OF 
  BIOLOGICAL 
  SURVEY— 
  BULLETIN 
  No. 
  21 
  

  

  C. 
  HART 
  MER 
  HI 
  AM, 
  Chief 
  

  

  THE 
  B0BWH1TE 
  

  

  AND 
  OTHER 
  QUAILS 
  OF 
  THE 
  UNITED 
  STATES 
  

   IN 
  THEIR 
  ECONOMIC 
  RELATIONS 
  

  

  BY 
  

  

  SYLVESTER 
  ID. 
  JUDD 
  

   Assistant, 
  Biological 
  Survey 
  

  

  WASHINGTON 
  

  

  GOVERNMENT 
  PRINTING 
  OFFICE 
  

  

  100 
  5 
  

  

  