14 
doves heard calling 
in mean 
Change 
per route between 1970 and 1971 

[7~ 
BS 
Oo 
rc 
v 
Ww 
o 
‘OD 
S 
w 
het 
oO 
O 
A 
Increase (>10%) 

[| Insufficient Data 
ic region between 1970 and 
h 
lograp 
i doves by phys 
ing mourning 
densities of breed 
in 
6. --Changes 
Figure 

