(J/MtX. 
Department of 
G1 en 
MONTHLY WILDLIFE RESEARCH LETTER 
Illinois Federal Aid Project W- 66 -R 
Conservation and Natural History Survey, Cooperating 
C. Sanderson and Helen C. Schultz, Editors 
Urbana, Illinois 
April, 1977 
Vol. 20 , No. 4 
Manipulation of Pheasa nt Habitat 
R* E. Warner 
and^O.s'acres^f graded^oadsUes* (T Tr Ford . Count y Management Unit 
F Conservation we^archeSt tongb? d ItT ^ ^ 
SESHSSlI 
to evaluate the innMcnces^f^he 0 ^ ° n J° adside nestin 9 > it is not possible 
composition) on nest,’ , Q f sonoh y e 9 etation (vegetative 
to songbird populations of hwi T o determine the relative benefits, 
roadsides scattered throuoh OL , t -ast-centra 1 V '| H^ ^ C ° ,,T1pared with seed, ‘ n 9 graded 
In 
(FCMU) 
ment of 
and gra< 
August, 
on the 
densiti< 
on the 
sides. 
rable 
Densities of songbird 
nests on seeded roadsides, 1976. 
t vo1 we sveuti g 
Nests 
Acres 
Nests per acre 
„FCMI| 
r ""> »- 
J f oi.n-'-., 
r, <* u a 0 vj 
1963 
1972 
1 S 74 
1975- 
47 
40 
O 
U 
9 
41.8 
41.7 
9.1 
9.9 
1.2 
O.96 
0.38 
0.91 
104 
102.5 
X = l.o 
The seedings of ]Q 7 q WPr p , 
found to have less brome end mor- ?e\ C °' TO ete ' V establ '-ied; these plots were 
made i n ! 9 60, l 97 ->. ,„ d |r;;t _ “ 9Ln,6s “ nb broadleaf weeds than the seeding: 
DMUMUKIMT SMtfCT 
MAY 12 1977 
UBRAW 
