a 
lecade occurred in 1966; the 1968 breeding population In the 5 years following the pheasant high of 1963, 
vas estimated to be about 10 percent above that of | the abundance of pheasants in Illinois declined by 
966 (William L. Preno, unpublished). about 50 percent. Much of this decline in abundance, 
uy ies 
Alt 
eeule 
Pere eeceetetatatatetetetetete AM || [petetoll ||| || otters MeL TTTITITIIIII] | NeeeNee LL Lifes ced UmtiiMi | Resaracasaenees 
or eta tere 
Oe 
APRIL, 1968 
PHEASANTS PER 
lOO MILES 
MM 100.1 Pus 
Re 50.1 100.0 
(MM 10.1-50.0 
4 1.1-10.0 
01-10 
[ _] LEss THAN o1 
Fig. 4.—Distribution and abundance of pheasants in Illinois as mapped from township statistics obtained 
by a rural mail carrier census, April, 1968. Counties below the heavy line were not censused. 
a (mea 
SS PERRY fas 
FRANKLIN 
