ECONOMIC RELATIONS OF OUR BIRDS. 
495 
Tabular Summary of Economic Relations of American Warblers — continued. 
Number and Name op Speci¬ 
mens Examined. 
Classification 
OP Food. 
Ratios Represented by Links. 
19 
Animal food . 
Of nineteen Bay- 
breasted Warblers 
examined . 
% 
a 
Vegetal food. 
2 
c3 
3 
Beneflcial. 
g 
6 
O 
o 
15 
Detrimental. 
BB8B 
17 
71 
Unlmown. 
L L ,1 . .. 
11 
Animal food. 
Of eleven Chestnut¬ 
sided Warblers ex- 
'2 
a 
Vegetal food. 
Beneflcial. 
amined . 
4 
o 
21 
Detrimental . 
9 
29 
17 
Animal food. 
0) 
Vegetal food. 
Of seventeen Black 
and Yellow Warblers 
1 
3 
1 
Beneflcial. 
g 
examined. 
8 
23 
Detrimental. 
o 
16 
48 
Unknown. 
8 
Animal food. 
Vegetal food. 
Of eight Palm War¬ 
blers examined. 
1 
• pH 
c3 
1 
Beneflcial. 
B 
4id 
2 
6 
o 
o 
10 
41 
Detrimental . 
Tin Vd own . 
GS3S 
8 
Animal food. 
MWL'JMIIKI 
8 
'd 
(D 
Vegetal food. 
maem 
Of ten Oven-birds ex- 
Aminftrl . 
Beneflcial. 
1 
8 
a 
o 
3 
Detrimental. 
i 
O 
23 
Unknown. 
7 
Animal food _ 
ESSO 
1 
XJ 
.9 
Vegetal food . ... 
1 
Of seven Water Wag- 
1 
1 
Beneficial. 
1 
2 
d 
o 
a 
5 
Detrimental. 
B 
7 
46 
Unknown. 
21 
Animal food. 
Of tw’cnty-one Mary¬ 
land Yellow-throats 
examined. 
O 
Vegetal food. 
.9 
S 
a 
Beneflcial. 
4 
12 
BHH 
7 
p 
44 
Detrimental. 
^^■SHEBSEBSl 
18 
78 
BHiiiii mil II 
# gf g.T 
