Materials and Methods 
The area chosen for the call-road count is northeast of Knoxville. 
Its most southwestern point is about seven miles from the city and the 
most northeastern point is a mile and a half from the Union County line. 
The twenty-mile course (Figure 1) avoids highways and consists of soil, 
gravel, and bituminous surfaced roads. The roads chosen do not follow 
the valleys but instead "take the hills as they come to them." The 
twenty-mile route lies almost wholly within the forest type known as 
Yellow Pine-Hardwoods, although in a few places there is a sprinkling 
of upland hardwoods. About 75 percent of this area is in farms. There 
is a liberal sprinkling of cedars throughout the entire area. The route 
crosses no rivers but there are five small streams and many artificial 
ponds along the twenty-mile course. The average elevation of the area 
which the route traverses is 1,000 feet above sea level, but at one point 
it comes within a quarter of a mile of House Mountain the top of which is 
2,000 feet above sea level. 
The route was laid off according to the suggestions of Foote, 1951. 
Beginning with station number 1 as the point on the course nearest Knox- 
ville, the stations were numbered clockwise. 
Beginning in April, 1951, and ending the following August the course 
was run one morning and one afternoon a week by the writer. The starting 
times were one half an hour before sunrise and one hour and a half before 
sunset. A speed of 25 miles an hour was maintained between stations, hence 
the entire course was run in two hours. The route was always run in the 
same direction (Figure 1). 
Doves heard calling over the route are shown in Figure 2 on basis of 
morning versus evening aS well as on a monthly basis. 
A count by five two-man crews was made in April, June, and August. 
This five-crew count was made to check the findings of the one-man count 
that was being run. 
An absolute census of the square mile surrounding station number 8 
was made during the periods from June 18 to June 22; another absolute 
census was made from July 19 to July 23, and another from July 31 to 
August 6 (Figures 3, 4, 5). The square mile consisted of about 70 percent 
farm land. The remainder of the area supported stands of the Yellow Pine- 
Hardwood type. There were four artificial ponds and one intermittent 
stream on this square mile. There was an abundance of cedar trees in all 
parts of the area. The farms consisted largely of permment pasture, al~ 
though there were two grain fields bordering the road to the right and left 
of the station. Other crops raised were corn and a small amount of tobacco. 
