ABSTRACT 
An index of size of the woodcock breeding population 
in 1964 was obtained from singing-ground counts conducted 
in 20 eastern and central States and 4 eastern Canadian 
Provinces. East of the Appalachians, 153 routes run in 
both 1963 and 1964 were available for comparison. West 
of the mountains, 133 comparable routes were covered. 
The population index rose 7 percent in the East and 
13 percent in the West. For both regions combined, the 
index increased 11 percent. It is doubtful if this repre¬ 
sents a significant change in size of the breeding population 
from 1963 to 1964 . 
An index of woodcock productivity in 1962 and 1963 
was obtained from age ratios in the hunting kill as deter¬ 
mined from 28,141 wings contributed by hunters. 
The number of immatures per adult female in the con¬ 
tinent-wide kill, weighted by kill estimates, was 1.8 in 
1962 and 1963 • Similarly, the number of immatures per 
adult (both sexes combined) was 1.1 in both years. These 
identical age ratios suggest that productivity did not 
change from 1962 to 1963* 
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