NATURAL HISTORY SURVEY -YYXju^ 
DEC 9 1968 Xulyinjunvru 
LIBRARY 
MONTHLY WILDLIFE RESEARCH LETTER 
Department of Conservation and Natural History Survey, Cooperating 
Glen C. Sanderson and Helen C. Schultz, Editors 
Urbana, Illinois 
November, 1968 
Vol. 11, No. 11 
1. Pheasant Populations and Land Use S. L. Etter, R. E. Greenberg 
During the period 1962-68, 121 nests which hatched in June and July were 
located by systematic nest searches. The mean number of chicks that hatched in 84 
nests, in June, was 9.4, significantly greater (£=<0.005) than the mean number of 
chicks in the clutches that hatched in July--7*6* 
The sizes of completely counted broods observed along roadside transects 
indicated that brood size, also, differed according to the month of hatch. During 
the period 1962-68, complete counts were obtained for 189 broods which were 3 to 6 
weeks old at the time of observation. The mean number of chicks in 125 broods 
that hatched in June (5.6) was significantly greater (P=<0.025) than the mean 
number of chicks in 64 broods that hatched in July (4.7)* 
These data suggest that the differences in observed brood sizes during the 
past 7 years (MWRL ll(10):l) resulted primarily from differences in the chronology 
of hatch among years. 
2. Manipulation of Pheasant Habitat G - Joselyn 
Total cost of manipulation of roadside cover on the Ford County Management Unit 
(MWRL ll(10):l) is estimated to be $10,124. Seedings cost $9,650, and nitrogen 
fertilization, $474. The 81 miles of roadside within and abutting on the manage¬ 
ment unit are the equivalent of roadsides around 20£ sections of land. Thus, the 
cost of treatment came to approximately $500 per square mile. 
Material for seeding operations cost $5,929; costs for application of materials 
and for operations not utilizing materials (e.g., mowing) totaled $3,721. The cost 
and application of limestone and fertilizer ($4,249) was by far the greatest seg¬ 
ment of total seeding expenses (44 percent). Seed accounted for 17 percent of the 
total seeding costs, and the chemical defoliate, 10 percent. Mowing, rolling, and 
miscellaneous activities accounted for 4-5 percent of the total cost of seeding. 
Supervisory expenses were about 16 percent of this total. 
On a unit area basis, costs for all material and operations on the management 
unit averaged $68 per acre and $139 P®r mile of roadside (one side of road only). 
