The Regulative Action of Birds upon Insect Oscillations. 
25 
TABLES OF THE FOOD — Continued. 
Warbling Vireo. 
si 
X 
£ 
u 
e3 
■o 
© 
Cliff Swallow. 
American Gold- 
finch. 
Yellow winged 
Spanow. 
Chipping Sparrow 
Field Sparrow. 
Black -throated 
Bunting. 
Rose-breasted 
Grosbeak. 
Indigo Bird. 
Total. 
'C 
S 
* 
0 
0 
Red-winged 
Blackbird. 
Baltimore Oriole. 
Number of Birds 
3 
7 
1 
1 
1 
8 
3 
14 
2 
18 
47 
1 
2 4 
’ 3 
KINDS OF FOOD. 
NUMBER OF SPECIMENS AND RATIOS IN WHICH EACH ELEMENT 
OF FOOD WAS FOUND. 
Rhynchophora 
5. FTemiptera 
1 
.03 
1 
.01 
5 
.06 
3 
.08 
1 
.01 
6 
.02 
2 
.08 
6 
.03 
1 
+ 
1 
+ 
18 
.03 
7 
.01 
1 
+ 
1 
+ 
1 
.01 
1 
.04 
1 
f 
1 
+ 
1 
.02 
HoiuoptcrR 
TT pf.pi’Anf.pra 
i 
.03 
1 
.03 
Lygaeidae 
Cydnidse 
i 
6. Orthoptera (Acridi- 
dae) 
III. Arachnida 
Vegetable Food (seeds) 
Composite 
Pn1vo , nnnm 
1 
.70 
1 
.30 
1 
.35 
6 
.01 
4 
.04 
' 2 
i 
”9 
.01 
17 
.07 
2 
.01 
1 
.10 
3 
.06 
2 
.20 
6 
.03 
2 
.01 
1 
.70 
2 
.50 
1 
05 
1 
05 
1 
.45 
2 
.01 
1 
.05 
2 
+ 
1 
.02 
7 
.01 
1 
2 
.01 
1 
.60 
Panicum 
1 
.01 
1 
+ 
