ECONOMIC RELATIONS OF OUR BIRDS.


671


Tabular Summary of Economic Relations of Woodpeckers - continued.


NUMBER AND NAME OF SPECI|       CLASSIFICATION         RATIOS REPRESENTED
BY LINES.
MENS ExAMINE D.              OF FOOD.
27          Animal food.
9          Vegetal food .......1
Of thirty   Yellow-       n        e       f
bellied Woodpeckers  1       1  Beneficial ........
examined ...........
4    V  4  Detrimental .
26     205  Unknown .........
16          Animal food.....
14  U       Vegetal food.
Of eighteen Red-head-         -                                     _
ed Woodpeckers ex- 2 .d         Beneficial .
amined ....
6)     V 8  Detrimental ......
15      66  Unknown .........
20         | Animal food..
7          Vegetal food .....
2      18  Beneficial ........
8     127  Detrimental..


Of twenty-two Golden- 19 10         nnw
winged Woodpeckers   95
examined V
0
0)


Table showing the hinds and number of insects, spiders and snails eaten by
the
Woodpeckers.
NUMBER AND NAME OF SPECI-    CLASSIFICATION       RATIOS REPRESENTED BY LiNEs.
MENS EXAMINED.             OF Foo.).
1   t  18  Ants ..............
One Pileated Wood- 1       18 Adult forms ......
pecker examined....  .    18.Adut.forms
0
V .......Larvme.
2      7  Ants ..............
2      3 Caterpillars .
1      1 Fly ..
9   E 25 Coleoptera ..
Ot seventeen Downy   I
Woodpeckers exam- 1I     110 Hemiptera ....
ined ...   . 1.I
1         Spider ............V
10    141 Adult forms ......
14     40 Larva     . |__
I        I Pupa .....   n..




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