Table 1 .—Trends in doves heard calling on call-count routes, 1963 to 196k - con. 
WESTERN MANAGEMENT UNIT - HUNTING STATES 
State 
Est. dove 
habitat 
(sq. mi.) 
Compa¬ 
rable 
routes 
Percent change Adjusted average 
in number of heard per route & indexes * * 
doves heard 1963 1964 
comp, routes Heard Index Heard Index 
Percent 
change 
Ariz. 
113,580 
47 
+ 21.61 
31.2 
3,539 
37.9 
4,305 
Calif. 
141,123 
52 
+ 9.74 
48.0 
6,774- 
52.7 
7,437 
Idaho 
4-9,685 
10 
+13.03 
27.6 
1,371 
31.2 
1,550 
Ney. 
108,704 
16 
+ 61.29 
23.3 
2,533 
37.6 
4,087 
Oreg. 
72,263 
16 
+ 8.02 
39.6 
2,864 
42.8 
3,093 
Utah 
74,111 
l4 
- 4.27 
25.5 
1,890 
24.4 
1,808 
Wash. 
46,884 
16 
+ 33.76 
33.1 
1,554 
44.3 
2,077 
Western Unit 
Total 
606,350 
171 
20,525 
24,357 
+18.7 
U.S. Total 
2,606,585 
789 
86,647 
93,472 
+ 7.9 
Table 2.—Trends in doves heard calling on Canadian call-count routes, 1963 to 1964 
Average 
Est. dove Conrpa- heard per route and indexes* 
habitat rable 1963 19&4 Percent 
Province (sq. mi.) routes Heard Index Heard Index change 
Ontario*** ** 26 12.7 ** 12.2 ** - 3-9 
* From a base year, average doyes heard calling per route for each State 
has been adjusted annually according to the percentage change from the 
preceding year in counts on comparable routes. The index, expressed 
in thousands, is the product of the adjusted average doves heard per 
route and the estimated area of doye habitat. 
** The area of dove habitat has not been estimated for Maine, New Hampshire, 
Rhode Island, Vermont, or Canadian Provinces. 
*** To date only Ontario has submitted comparable data for routes run in 
consecutive years. 
