ECONOMIC RELATIONS OF OUR BIRDS. 
571 
Tabular Sianma^uj of Economic Relations of Woodpeckers — continued. 
Number and Name of Speci¬ 
mens Examined. 
Of t h i r t y Yellow- 
27 
9 
<v 
fl 
bellied Woodpeckers 
1 
1 
1 
examined. 
4 
13 
o 
O 
4 
2G 
205 
Classification 
OP Pood. 
Animal food 
Vegetal food 
Ratios Represented bt Lines. 
Beneficial ... 
Detrimental , 
Unknown..., 
Of eighteen Red-head¬ 
ed Woodpeckers ex¬ 
amined . 
If) 
It 
O 
•V 
0 
15 
s 
a 
o 
o 
Animal food . 
Vegetal food. 
2 
8 
66 
Beneficial .. 
Detrimental 
Unknown. . . , 
Of twenty-two Golden- 
wingeti Woodpeckers 
exahiined . 
20 
7 
2 
8 
19 
<D 
3 
a 
o 
O 
Animal food 
Vegetal food , 
18 
127 
13S3 
Beneficial ... 
Detrimental, 
Unknown.... 
Table showing the kinds and number of insects, spiders and snails eaten by the 
Woodpeckers. 
Number and Name of Speci¬ 
mens Examined. 
Classification 
OF Food. 
* Ratios Represented by Lines. 
One Pileated Wood¬ 
pecker examined.... 
1 
1 
1 
Contained 
18 
Ants. 
18 
Adult forms. 
Larvae. 
2 
7 
Ants. 
■ 
2 
3 
Caterpillars. 
1 
1 
1 
Fly . 
1 
9 
25 
Coleoptera. 
Ot seventeen Downy 
.s 
Woodpeckers exam- 
1 
s 
110 
Hemiptera. 
ined. 
a 
1 
o 
o 
1 
Spider .. 
- * -- - 
1 
10 
141 
Adult forms . 
14 
40 
Larvae . 
1 
1 
Pupa. 
1 
