Table 1. Trends in Doves Heard Calling on Call-count Routes, 1960 to 1961 (Cont'd 
aad 

WESTERN MANAGEMENT UNIT - HUNTING STATES 
Est. Dove Compa- Average Heard per Route and Indexes* 
Habitat rable 1960 1961 Percent 
State (sq. mi.) Routes Heard Tndex Heard Index Change 
Ariz. 113,580 18 26.3 2,987 WF 1. 5,350 +79.2 
Calif. 141,123 27 59.5 8,397 yO .7 6,026 ~28 2 
Tdaho 49,685 Lh 30.8 1,530 {<2 1,851 -11.7 
Nev. 108, , 704 24 2h.1 2,620 29.6 3,218 422.9 
Oreg. 72,263 18 38.8 2,804, 43.0 3,107 +10.7 
Utah TAs LLL 17 35.2 2,609 28.0 2,075 ~20.4 
Wash. 46,884 16 35.3 1,055 31.0 1,453 -12.3 
Western Unit 
Total 606, 350 134 22,602 22,580 -0.1 

* From a base year, average doves 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 tle product of the adjusted average doves heard per 
route and the estimated area of dove habitat. 
** The area of dove habitat has not been estimated for Maine, New 
Hampshire, Rhode Island, and Vermont. 
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