Table 1. Trends in Doves Heard Calling on Call-count Routes, 1959 to 1960 (Contd) 
a A a 
WESTERN MANAGEMENT UNIT - HUNTING STATES 
LS a a gd noho yaya epaoarg era? 
_Est. Dove Compa- Average Heard per Route and Indexes* 

| Habitat rable 1959 1960 Percent 
State . (Sqe mi.) Routes Heard Index Heard Index Change 
Ariz. 113,580 20 33.6 3,816 26.3 2,987 -21.8 
Calif. 141,123 28 55.1 7,776 59.5 8,397 + 7.9 
Idaho 49,685 17 26.7 1,327 30.8 1,530 +15.2 
Nev. / 108,704 19 33.2 3,609 24.1 «2,620 -27.3 
' Oreg. 72,263 17 42.3 3,057  ~=-38.8 2,804 -8.3 
Utah 74,111 17 43.5 3,224 35.2 2,609 -19.0 
Wash. . 46 ,884 15 51.3 2,405 35.3 1,655 ~31.2 
Western Unit | : | | , 
Total 606 ,350 131 25,214 22,602 -10.4 

*Average doves heard calling per route for each State is a base figure 
which has been adjugted annually by applying the percentage change 
occurring on comparable routes from year to year. The State index is 
expressed in thousands and is calculated by multiplying average doves 
heard calling per route times the estimated area of dove habitat in: 
the State. 
*k*kThe area of dove habitat has not yea adtimaied for Maine, New Hampshire, 
Rhode Island, and Vermont. 
11 
