Vo l. 8, No. 7 
Page 3 
Table 2. Percentages of hen pheasants observed (including repeat observations of 
individual birds) during July and August that were accompanying broods, Neoga, 
Illinois, i960 through 1963- Numbers of hens observed are in parentheses. 
Strains of Pheasants 
Years 
All V/ ^ 
rs 
I960 
1961 
1962 
1963 
M 1 1 Y 63 
California 
29(7)* 
(0)* 
33(3)* 
(0) 
30(lof 
Korean 
---- 
— 
— 
50(6)* 
50(6) 
35(17) 
Japanese 
— 
— 
0(1)* 
(0)* 
0(0 J 
W i 1 d -111ino i s 
58(70* 
40(10)* 
(0) 
33(15)* 
52 ( 96 r 
- 52(97) 
Wi Id-Kansas 
---- 
— 
0(1)* 
(0) 
0(1) _ 
Native 
— 
82(34) 
68(25) 
49(70) 
61(129) 
Undetermined 
100(1) 
(0) 
83(6) 
25(4) 
64(11) 
Al 1 Strains 
56(79) 
73(44) 
64(36) 
45(95) 
56(254) 
* Pheasants of these strains were released the preceding winter. 
4. Respo nses of Bobwhites to Hab ? tat Manipulation 
J. A. Ellis, R. L. Westemeier 
Counts of calling quail made on the Forbes, Dale, and Alma areas from early 
May until mid-July, I 965 , provided a means for comparing populations of whistling 
bobwhites with those of preceding years (Table 3)• 
On the Forbes Area in I 965 , the average number of cock quail heard to call at 
each of 11 stops ranged from 0.2 to 2.5 (T^ble 3) during the spring - summer period 
(May 6 - July 14). Although the data for 1963 and 1964 are not strictly comparable 
w : '- the data for 1965 . the maximum counts declined from 6.4 in I 963 to 5-5 in 
1964 and to 2.5 in 1965- By this measure, the number of whistling cocks cn Forbes 
in Ki 65 was 55 percent less than in 1964 and 61 percent less than in I 963 . 
On the Dale Area in 1 965 , the average number of cock quail heard to call at 
each of 12 stops ranged from 1.8 to 6.3 (Table 3)* The maximum count of 6.3 in 
1565 is 6 percent lower than the maximum count in lg64 (6.7)» but is 13 percent 
higher than the I 963 maximum (5*5)• 
On the Alma Area, the average number of cocks heard to call at each of 20 stops 
ranged from 1.4 to 4.2 in 1964 and from 0.7 to 3-2 in I 965 , the maximum count 
declining by 24 percent. 
Several investigators have shown that the numbers of whistling cocks in summer 
are not necessarily predictive of fall populations. However, since the decline in 
the numbers of whistling males on the Forbes Area is severe, the autumn population 
on this area is likely to be smaller than in I 963 and 1964. On the basis of the 
May-July whistle counts, the reproductive potential of quail on the Dale and Alma 
areas in 1465 is, respectively, relatively equal to and somewhat less than the 
reproducti/e potential in 1964 (both areas) and 1 96 3 (Dale). 
