Table 2.--Trends in the Breeding-Population Index, 1957-63 
The first figure listed for each State by years is the adjusted 
average doves heard calling per route. The method of adjustment is 
described in the text. The base year for adjustments was 1956 or 1957. 
States for which 1957 was the base year are those that reorganized call- 
count routes in that year. These States are Alabama, Georgia, Kentucky, 
Mississippi, North Carolina, South Carolina, and Tennessee. 
The second figure for each State is the breeding-population index. 
The index, expressed in thousands, is the product of the adjusted aver- 
age doves heard per route and the estimated area of dove habitat. 
(Habitat area is given in table 1.) 
Data for the years 1953 through 1956 may be obtained from Special 
Scientific Report-Wildlife No. 70. 



State 1957 1958 1959 1960 1961 1962 1963 
Alabama 21.1 23.8 18.7 22.7 20.1 19.5 16.0 
1,078 1,216 955 1,159 1,027 996 817 
Arizona 33-1 31.0 33.6 26.3 47.1 32.8 31.2 
3,759 3,521 3,816 2,987 5,350 3,725 3,539 
“Arkansas 32.6 33-7 30.0 28.0 30.5 16.9 25.8 
1,719 1,777 1,582 1,476 1,608 891 1,360 
California 36.7 41.2 55.1 59.5 42.7 48.0 48.0 
5,179 5,814 7,776 8,397 6,026 6,774 6,774 
Colorado 57 .6 46.4 23.8 34.9 16.8 16.8 12.5 
| 4,192 3,377 S-11,732 2,540) 1,223: 1,223 910 
Connecticut 9.0 7.0 6.0 9.6 5.2 5.2 Wed 
35 27 ek 38 20 20 17 
Delaware 31.0 30.0 54.0 49.0 36.0 4h.o 40.0 
61 29 LOT 97 rar 87 79 
Florida 13.8 11.0 11.0 12.9 12.0 14.5 12.4 
Th9 597 59T 700 651 787 673 
Georgia 21.4 15.9 18.9 24.0 20.4 23.8 20.4 
1,252 930 1,106 1,404 1,194 1,393 1,194 
me ae 
