Breeding-population Index (millions) 
Figure 3. 
40 
Ww 
ul 
Ww 
oO 
IN 
Ui 
NN 
© 
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So 
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A Comparison of Trends in Breeding-population 
Indexes for Hunting and Nonhunting States 
within Management Units. 
CENTRAL UNIT 
Hunting States 

# EASTERN UNIT 
Hunting States 
ei. 
Nonhunting States 
on. ; 
Pd 2D te A on oe <n ana dien, 0 Ee ie Oe ND ED OE SAD ES SS NS OD Gey cS ENED aD ED me ea Migr ED OD OD ED ED DB 2 ee oe ete oe oe 

1953 1954 1955 1956 1957 1958 1959 1960 1961 1962 1963 
