ECONOMIC RELATIONS OF OUR BIRDS. 
511 
Tabular Summary of Economic Relations showing the number of specimens con¬ 
taining animal and vegetable food, and the number of insects and spiders 
taken from the stomachs, classified as to economic relations under the heads 
Beneficial, Detrimental and Unknown Relations. 
Number and Name op Speci¬ 
mens Examined. 
Classification 
OF Food. 
Ratios Represented by Lines. 
20 
Animal food.. 
4 
o 
Vegetal food . 
■1 
Of twenty-nine Scarlet 
7 
.5 
15 
Beneflcial. 
Tanagers examined. 
10 
o 
38 
Detrimental... 
25 
CJ 
94 
_ 
Table showing the kinds and number of insects and spiders eaten by the Scarlet 
Tanager. 
Number and Name op Speci¬ 
mens Examined. 
Classification 
OF Food. 
Ratios Represented by Lines. 
4 
4 
Hymenoptera 
■■ 
8 
26 
Caterpillars .. 
3 
6 
Diptera. 
17 
47 
Beetles. 
3 
6 
Hemiptera ... 
EDI 
Of twenty-nine Scarlet 
4 
7 
Grasshoppers. 
BBB 
Tanagers examined. 
1 
a 
o 
o 
1 
Dragon-fly_ 
1 
3 
11 
Spiders. 
27 
8 
120 
26 
Adult forms.. 
1 
1 
Pupa. 
' 
59. Pyranga rubra (Linn.), Vieill. SCARLET TANAGER. Group I. 
Class b. 
This brilliant bird is very common with us, and breeds abundantly in groves 
and the borders of woodlands, and, occasionally, in orchards. These situations 
are also its usual haunts during the summer. In its choice of food and in its 
manner of obtaining it, the Scarlet Tanager is quite comprehensive. It is quite 
an expert fly-catcher, but, apparently, seizes only the larger winged insects. I 
have seen it beat out into a fleld, from the border of a piece of woods, and capt¬ 
ure a butterfly fColias philodicej, which was flying ten rods distant. If proper 
breeding grounds are provided for it, I see no reason why it should not maintain 
a steady and considerable abundance, and prove itself a very useful bird. The 
