ECONOMIC RELATIONS OF OUR BIRDS. 
407 
Table allowing kinds and mimher of animals, mostly insects, eaten by American 
Warblers — continued. 
Number and Name op Speci¬ 
mens Examined. 
Classification 
of Food. 
Ratios Represented by Lines. 
1 
2 
Ants. 
■ 
1 
0) 
2 
Caterpillars. 
■ 
Of six Black-throated 
.g 
Blue Warblers exam- 
1 
5 
Beetles. 
■■■ 
6 
O 
O 
oo 
Adult forms. 
1 
2 
Larvae. 
1 
Of twenty-one Yellow- 
rumped Warblers ex¬ 
amined . 
4 
22 
Lepidoptera. 
5 
14 
Diptera. 
15 
48 
Beetles. 
1 
o 
53 
4 
Hymenoptera .... 
1 
3 
•4^ 
1 
Caddis-fly. 
1 
o 
o 
1 
Spider. 
19 
84 
Adult forms. 
3 
21 
Larvae. 
1 
15 
Tipulid eggs. 
Of nine Hemlock War¬ 
blers examined ... 
OJ 
a 
a 
o 
o 
8 
19 
7 
9 
2 
Hymenoptera .... 
Caterpillars 
Diptera 
Beetles 
Heteroptera 
37 
Adult forms. 
19 
Larvae. 
— 
Of nineteen Bay¬ 
breasted Warblers 
examined. 
3 
6 
3 
7 
1 
1 
18 
5 
1 
7 
7 
6 
15 
6 
1 
80 
6 
1 
Ants . 
Lepidoptera . . 
Diptera . 
Beetles . 
Leaf-hoppers. 
Dragon-fly — 
Adult forms. 
Larvae . 
Pupa. 
Of seventeen Black- 
and-yellow Warblers 
examined. 
3 
4 
Hymenoptera ... 
6 
18 
Lepidoptera . 
6 
0) 
B 
'3 
15 
Diptera . 
6 
o 
12 
Beetles . 
15 
O 
50 
Adult forms . 
7 
20 
Larv’ae . 
VoL. I— 33 
