The Regulative Action of Birds upon Insect Oscillations. 
23 
TABLES OF THE FOOD- Continued. 
Robin. 
Catbird. 
Brown Thrush. 
Total. 
Bluebird. 
Black-capped 
Chickadee. 
House Wren. 
Tennessee War- 
bler. 
I Summer Yellow 
Bird. 
Chestnut-sided 
Warbler. 
Black-poll War- 
bler. 
Black-throated 
Green Warbler. 
Maryland Yellow- 
throat. 
Total. 
Number of Birds 
9 
14 
4 
27 
5 
2 
5 
1 
5 
2 
4 
1 
2 
15 
KI^DS OF FOOD. 
NUMBER OF SPECIMENS AND RATIOS IN WHICH EACH ELEMENT 
OF FOOD WAS FOUND. 
Homoptera 
1 
.02 
1 
.05 
1 
.05 
Aphides .. 
Tettigonidae 
Heteroptera 
Aradidae 
3 
.02 
"i 
02 
"6 
.02 
1 
.02 
1 
.06 
1 
.02 
1 
.02 
1 
.02 
3 
.15 
1 
.05 
1 
+ 
Lygzeidse 
1 
.05 
1 
+ 
Chinchbugs. . . . 
Coreidae. 
1 
.01 
2 
.01 
2 
05 
1 
.01 
1 
.01 
5 
01 
Cydnidse 
3 
.02 
' 2’ 
.02 
3 
.15 
2 
.02 
III. Arachnida 
IV. Myriapoda.. 
VI. Vermes (Lumbri- 
”i 
.06 
5 
.03 
1 
.01 
3 
.06 
1 
01 
3 
.06 
1 
+ 
1 
+ 
5 
.02 
Vegetable Food (seeds). 
1 
.05 
1 
.01 
