Table 3. Trends in the Breeding-population Index, 1953-60. 
The first figure listed for each State by years is average doves 
heard calling per route for the State adjusted from a 1956 base. 
The 
base figure is adjusted by applying annual percentage changes deter- 
mined from comparable routes. 
is used as a base. 
For States having random routes, 1957 
The second figure for each State is an index ex- 
pressed in thousands which is calculated by multiplying average doves 
heard calling per route times the estimated area of dove habitat in the 
State (habitat area given in Table 1). 

State 
Sa 
SOF J 3 
Ala. 
Ariz. 
Ark. 
Calif. 
Colo. 
Conn. 
Dela. 
Fla. 
Ga. 
Idaho 
Til. 
Ind. 
1953 
17.4 
889 — 
30.7 
3,487 
34.6 
1,824 
37.8 
5,334 
no 
index 
5.0 
20 
28.0 
55 
18.2 
988 
17.2 
1,007 
22.8 
1,133 
23.7 
1,326 
23.5 
851 
1954 
21.3 
1,088 | 
31.8 
3,612 
27-1 
1,429 
34.7 
4,897 
46.5 
3,384 
0.0 
0 
29.0 
57 
15.2 
825. 
17.3 
1,012 
30.0 
1,491 
19.4 
1,085 
42.4 
1,535 
1955 
19.7 
1,006 
29.4 
3,339 
32.0 
1,687 
30.0 
4,234 
50.2 
3,653 
5.6 
22 
30.0 
59 
16.7. 
906 
15.5 
907 
26.3 
1,307 
19.7 
1,102 
35.7 
1,293 
1956 
19.9 
1,016 
40.0 
4,543 
29.4 
1,550 
34.9 
4,925 
70.5 
5,131 
5.5 
14.6 
792 
22.5 
1,317 
26.8 
1,332 
22.8 
1,276 
29.3 
1,061 
13 
1957 
ahd 078 
33.1 
3,759 
32.6 
1,719 
36.7 
5,179 
57.6 
4,192 
9.0 
35 
31.0 
61 
13.8 
749 
21.4 
1,252 - 
27.0 
1,341 
30.3 
1,695 
32.8 
1,188 
1958 
23.8 
1,216 
31.0 
3,521 
33.7 
1,777 
41.2 
5,814 
46.4 
3,377 
7.0 
27 
30.0 
59 
11.0 
597 
15.9. 
930 
23.8 
1,183 
32.8 
1,835 
34.0 
1,231 
1959 
18.7 
955 
33.6 
3,816 
30.0 
1,582 
55.1 
7,776 | 
23.8 2 
1,732. , 
6.0 
24 
54.0 « 
107 
11.0 
597 
1,106 
26.7 
1,327 
33.2 
1,857 
35.4 
1,282 
18.9, 
1960 
1,159 
26.3 
2,987 
28.0 
1,476 
8,397 
3439 
2-540 
: 9.6 
376 
49.0 
97 
12.9 
700 
‘ 24. 0 
1,404 - 
30.8 
1,530 
41.6 
1, 768 
26.8 
970 
