STATE OF ILLINOIS 
DEPARTMENT OF REGISTRATION AND EDUCATION 
NATURAL HISTORY SURVEY DIVISION 
STEPHEN A. FORBES, Chief 
Vol. XIV. BULLETIN Article VI. 
The Numbers and Local Distribution in 
Summer of Illinois Land Birds 
of the Open Country 
BY 
STEPHEN A. FORBES 
and 
ALFRED O. GROSS 
PRINTED BY AUTHORITY OF THE STATE OF ILLINOIS 
URBANA, ILLINOIS 
April, 1922 
