Page 3 
Table 
• Vegetative structure reiated to nest success for prairie chic 
1976-1978. 
kens, 
Without nests 
With nests, success > 50 % 
With nests, success < 50 % 
1977 Fields 
Without nests 
With nests, success 2 : 50 % 
With nests, success <150% 
1978 Fields 
Without nests 
With nests, success 2 50 % 
With nests, success <-50% 
1976-78 Fields 
Without nests 
With nests, success —50% 
With nests, success -<-50% 
MMH 
MH 
MHCS 
MD 
- Mean maximum height (cm) 
= Mean height (cm) 
= Mean he *ght of consecutive strikes (cm) 
density (percentage occurrence to 30 cm) 
51.3 
10 . I 
5- 1 
23.7 
70.4 
10.8 
6.0 
23*4 
76.4 
13.4 
8.2 
32.8 
41 .9 
8.8 
3-0 
19-0 
62.9 
9-5 
3-0 
20.0 
67.6 
1 2 a 0 
4.0 
23.5 
58. 1 
12.3 
3.5 
18. 7 
57.2 
7.9 
4.4 
21.6 
68.2 
12.4 
4.6 
24.8 
48. 7 
9.9 
4. 1 
21.4 
64.6 
9-8 
4.4 
23.6 
71.6 
12.9 
6.0 
28.2 
