Vol. 7, No. 1 I 
Page 5 
Table 4. Land use on 10 prairie chicken census areas (76,720 acres) in Illinois, 
I 963 and 1964, expressed as percentage of total area. 
1963 
1964 
Grain Crops 
74.2 
78.0 
Legume Hay 
2.3 
1 .6 
Legumes* 
• 9 
.6 
Grass Hay 
2.3 
2.0 
Grass* 
4.2 
3-6 
Grass Pasture 
9-2 
6.7 
Weeds* 
• 3 
1 .4 
Trees and Brush 
4.4 
3.4 
Other Uses 
2.2 
2.7 
Idle fields. 
Ellis, Ralph J. 
1964. Responses 
of bobwhites and pra 
irie chickens 
to habitat 
manipulation (B. 
Prairie chickens). 
Pittman-Robertson Job 
Completion Rept. 
W-66-R-3, Job 13. 
1 1 + [_ 1 Sj pp- 
