Figure 3, 
40 
Ww we) 
oO ur 
N 
wm 
Breeding-population Index (millions) 
co au °o 
8 

A Comparison of Trends in Breeding -population 
Indexes for Hunting and Non-hunting States 
within Management Units, 
CENTRAL UNIT 
Hunting States 


.-  Non-hunting States 
Tome” EASTERN UNIT 
pipe ae Rita tl 
ee enemas essen eSene Seren apes gp ane N on -hunting State 8 

1953 1954 1955 1956 1957 1958 1959 1960 
