ECONOMIC RELATIONS OF OUR BIRDS. 
521 
Table showing the kind and number of insects and spiders eaten by the Vireos. 
Number and Name of Speci¬ 
mens Examined. 
Of forty-nine Red-eyed 
Vireos * examined.. 
5 
32 
4 
15 
5 
5 
4 
o 
IV 
39 
1 
33 
3 
Of sixteeen Warbling 
Vireos examined ... 
Classification 
OF Food. 
21 
Hymenoptera ... 
59 
Lepidoptera. 
9 
Diptera. 
32 
Beetles. 
71 
Hemiptera. 
6 
Grasshoppers .... 
5 
Nem-optera. 
2 
Spiders. 
Ratios Represented by Lines. 
212 
1 
56 
30 
Pupa 
Larvee 
Insect eggs 
8 
34 
Caterpillars. 
2 
5 
Beetles. 
3 
^^3 
3 
Hemiptera. 
2 
<D 
.g 
5 
Diptera . 
1 
d 
C 
o 
1 
Grasshopper. 
6 
o 
29 
Adult forms. 
8 
31 
Larvae . 
2 
28 
Insect eggs. 
Of twenty-one Yellow 
throated Vireos ex¬ 
amined . 
7 
2 
8 
2 
3 
16 
5 
O) 
a 
• pH 
a 
o 
o 
19 
12 
18 
2 
3 
58 
22 
30 
Lepidoptera 
Diptera 
Beetles 
Heteroptera 
Grasshoppers 
Adult forms . .... 
Larvm 
Insect eggs . i 
69. ViREO OLIVACEUS (LiNN.), ViEiLL. REI)-E\E1) VIREO; RED-EYED 
GREENLET. Group I. Class b. 
No Vireo in Wisconsin is as numerous, and no summer resident of the wood¬ 
lands as abundant as this species. The depths of deciduous foiests, the out¬ 
skirts of swamps, Ioav damp woods, and thick groves of young trees are its usual 
haunts; occasionally it enters orchards, gardens and the shady portions of vil. 
lages, but these it generally leaves to its cousin the Warbling Vireo. The greater 
portion of its food is taken from the foliage of trees and shrubs while at rest, 
> Scale reduced one-half for the Red-eyed Vireo. 
