1 NORTH — 30! COUNTS 
80 CENTRAL—123 COUNTS 
“| SOUTH—103 CGOUNTS 
(PER CENT OF COUNTS) 
FREQUENCY 
oO 
CT) ES = | ¢ 
Fig. Sree mercy of occurrence of the relatively common species of hawks reported on Christmas counts in northern, 
linois, 1903-1955. 
central, and southern [| 
70 
o 
jo} 
50 M NORTH—3O!l COUNTS 
ao CENTRAL— 123 COUNTS 
FE) SOUTH—103 COUNTS 
FREQUENCY (PER CENT OF COUNTS) 
30 
20 
10 
O 
& Ss 4 Ss 8 zl Ss Ss 
Ip CR ony, No 4 © On Op 4y 
%V & & ly ’ CG > > 
C fa) la ~ S Wy, 
4 &4 & > 
o £o 
Fig. 6.—Frequency of occurrence of the relatively common species of owls reported on Christmas counts in northern, 
central, and southern inewe, 1903-1955. 
