ECONOMIC RELATIONS OF OUR BIRDS. 
4G5 
Tabular summary of the results of an examination of the contents of the stom¬ 
achs of 1,608 birds. 
The Names op the Fami¬ 
lies TO WHICH the Birds 
Examined Belong. 
Whole number of birds examined 
^ Number eating animal food. 
N umber eating vegetable food. 
Number eating adult forms. 
i 
I Number of adult forms eaten. 
Number eating pupae. 
d 
eg 
<D 
1 
P 
P. 
*T-i 
o 
u 
s 
p 
Number eating larval forms. 
Number of larval forms eaten. 
Number eating eggs. 
Number of eggs eaten. 
Number eating beneficial forms. 
Number of beneficial forms eaten 
Number eating noxious forms. 
Number of noxious forms eaten, 
Number eating forms of im- 
known economic relations. 
Number of forms of unknown 
economic relations eaten. 
Thrashes. 
105 
93 
46 
66 
159 
2 
6 
34 
72 
3 
15 
12 
18 
46 
96 
67 
163 
Bluebirds. 
27 
26 
1 
21 
40 
6 
9 
2 
10 
3 
5 
. 20 
42 
11 
22 
Sylvias. 
16 
16 
14 
65 
i 
i 
3 
9 
2 
2 
3 
9 
14 
64 
Pitmice-.. 
12 
12 
1 
12 
42 
7 
14 
5 
2 
2 
8 
17 
10 
37 
Nuthatches. 
29 
27 
10 
26 
87 
1 
1 
2 
4 
0 
2 
5 
10 
27 
80 
Creepers . 
3 
2 
2 
6 
0 
6 
Wrens. 
27 
27 
2 
27 
108 
5 
9 
1 
5 
2 
2 
13 
23 
20 
87 
Larks. ■ _ 
6 
6 
Wagtails. 
2 
2 
2 
6 
2 
6 
American Warblers. 
246 
241 
19 
218 
1,118 
1 
1 
60 
184 
6ll33 
14 
28 
72 
323 
218 
942 
Tanagers. 
29 
29 
4 
27 
120 
1 
1 
8 
26 
7 
10 
38 
25 
94 
Sw'allows. 
32 
32 
32 
281 
13 
67 
16 
124 
17 
109 
Wax wings. 
15 
5 
13 
5 
18 
1 
50 
2 
7 
2 
r* 
3 
4 
Greenlets. 
87 
85 
14 
62 
301 
1 
1 
47 
114 
7 
88 
7 
9 
61 
113 
51 
184 
Shrikes. 
15 
15 
15 
75 
4 
6 
7 
8 
13 
49 
10 
24 
Finches. 
339 
156 
266 
102 
484 
35 
67 
16 
13 
18 
62 
241 
no 
328 
American Starlings. 
150 
74 
99 
56 
194 
19 
71 
4 
9 
12 
37 
119 
50 
139 
Crows, Jays, etcC. 
35 
28 
28 
23 
51 
8 
11 
2 
.5 
10 
15 
22 
42 
American'Flycatchers. 
119 
119 
5 
118 
659 
11 
23 
5 
328 
32 
53 
41 
126 
113 
601 
Goatsuckers . 
7 
7 
7 
118 
1 
162 
1 
1 
4 
18 
r’ 
97 
Chimney Swifts. 
3 
1 
1 
2 
1 
2 
Humming-Birds. 
5 
5 
5 
17 
4 
4 
1 
1 
5 
12 
Kingfishers. 
6 
Cuckoos. 
14 
14 
ii 
62 
11 
83 
3 
3 
12 
102 
4 
31 
Woodpeckers. 
no 
102 
41 
84 
1,864 
8 
285 
30 
166 
6 
22 
41 
354 
87 
1903 
Owls . 
8 
3 
1 
2 
9 
1 
10 
3 
19 
Hawks. 
15 
13 
12 
10:2 
2 
3 
3 
3 
8 
60 
2 
10 
Pigeons. 
16 
2 
16 
2 
26 
1 
2 
1 
1 
1 
15 
2 
12 
Grouse . 
8 
5 
5 
4 
13 
2 
25 
1 
5 
1 
r* 
7 
30' 
Plover . 
16 
16 
14 
78 
7 
15 
1 
52 
2 
7 
9 
33 
13 
61 
Phalaropes. 
5 
4 
4 
16 
3 
10 
! 
4 
20 
Snipe, etc. 
45 
38 
5 
23 
150 
7 
13 
5 
17 
3 
6 
35 
164 
Herons. 
15 
15 
11 
39 
4 
21 
8 
47 
1 
1 
.5:3 
Rails. 
16 
9 
14 
3 
12 
1 
2 
9 
58 
Ducks. 
13 
7 
9 
1 
2 
1 
3 
1 
2 
6 
69 
Gulls. 
6 
6 
5 
28 
3 
6 
3 
6 
5 
26 
Grebes. 
6 
6 
5 
24 
2 
15 
2 
15 
5 
32 
Totals. 
1,608 
1,243.605 
1,0211 
6,376 
151296 
323 
991 
38 
934 
164 
367 
515 
2,018 
964 
4392 
VoL. 1 — 30 
