Vol. 22, No. 10 
Page 3 
To date, the data suggest that grass seed harvesting is the management 
category to emphasize, but not all redtop-timothy meadows are suitable for seed 
harvesting, hence the undisturbed category. Also, if stands of redtop and 
timothy go much over 1 year with no disturbance, weed and woody sprout invasion 
can become a problem. Brome has shown a high degree of resistance to weed 
invasion with minimal maintenance plus high use and success by hens. Thus brome 
merits greater emphasis in our management. Also, research must (1) continue to 
seek the best means of managing prairie grasses, and (2) demonstrate greater 
acceptance and success by prairie chickens (see MWRL 21(11):2-3) so that we are 
not limited to the cool-season-introduced grasses and legumes. 
Table 2. Prairie chicken nest numbers and success according to the management 
prior to nesting on the Yeatter-Field-McGraw sanctuary unit at Bogota, 1963 - 79 . 
Undisturbed 
Harvested 
for 
Grass Seed 
Mowed 
for 
Weeds 
Mowed 
for 
Hay 
Acres Searched 
853 
598 
670 
131 
Nests Found 
181 
106 
77 
11 
Total Nests/10 Acres 
2.1 
1.8 
1.1 
0.8 
Hatched Nests/10 Acres 
1.0 
1.0 
0.4 
0.5 
% Success 
48.2 
54.3 
40.5 
54.5 
Ecology and Management of 
Deer 
C 
. M. Nixon, 
L. 
P. Hansen, 
J. 
E. Chelsvig 
This study will be inactive until December 1, 1979. 
