population along the route between April and July since the activity 
index remained rourhly the same for each station. Thus, stations 5, 
10, 12, 15, 20 which showed high activity in April and May remained in 
general as "best" stations in June and July. It is interesting to note 
that one or two "good" stations alternated rather consistently with 
"poor" stations all along the route (Figure 4); this indicates that 
breeding deves were fairly evenly distributed along the route, but 
tended to concentrate to some extent. This agrees with our general 
observation that in Georgia doves show a moderate colony nesting be- 
havior, but do not concentrate in large colonies as reported for some 
mid-western and southwestern areas. 
The Relation of Actual Density to Call Counts 
During May and June Hopkins and Odum determined by means of the 
spot-mapping method that the actual breeding population of a 100-acre 
area with station 10 as the center was four pairs. Both five-crew and 
one-crew countS indicated that station 10 was one of the most active 
Stations with from one to four doves being heard consistently; the 
average for May and June on one-crew counts was 2.6 doves heard per 
3-minute stop. Plans for second year's study call for population 
density determinations for a number of stations in order to establish 
more definitely a correlation between call counts and actual breeding 
density. 
Morning vs. Afternoon Counts 
While morning counts are consistently higher and less variable 
than afternoon counts at the peak of the season, there is much to be 
said for the afternoon count as a practical index for future use in 
determining population trends. As shown in Figure 3 there is less 
time bias and more equal sampling of all stations along the route. 
Most important, however, is fact that cooperation of wildlife rangers, 
busy state and federal personnel, and voluntary observers will likely 
be much greater with afternoon counts than with morning ones. Early 
morning counts in May and June are hard on the health of persons who 
have full time duties in other matters. 
The Relation of Call Counts to Production 
It is interesting and perhaps significant that both the magnitude 
and form of the morning counts' curve shown in Figure 2 is very similar 
to that obtained by Wagner in Wisconsin. If the level of calling is 
directly correlated with actual nesting activity, a relation not yet 
definitely determined, this comparison suggests that the breeding season 
