The Regulative Action of Birds Upon Insect Oscillations. 
27 
TABLES OF THE FOOD — Concluded. 
Orchard Oriole. 
Bronzed Grackle. 
Total 
King Bird. 
Wood Pewee. 
Traill’s Flycatcher 
Yellow-bellied 
Flycatcher. 
Total. 
Black -billed 
Cuckoo. 
Red-headed 
Woodpecker. 
Flicker. 
Total. 
Mourning Dove. 
Quail. 
2 
3 
11 
3 
3 
2 
1 
9 
1 
4 
1 
5 
1 
2 
KINDS OF FOOD. 
NUMBER OF SPECIMENS AND RATIOS IN WHICH EACH ELEMENT 
OF FOOD WAS FOUND. 
T?.h y n r.h oph nrn, 
1 
i 
3 
.01 
1 
+ 
1 
+ 
1 
.01 
5. Hemiptera 
1 
.10 
1 
.01 
Homoptera. 
Cydnidae 
1 
.10 
1 
.01 
6. Orthoptera (Acridi- 
dse ) 
1 
.02 
1 
.02 
6 
.32 
V. Ckustacea (Craw- 
fish). 
1 
.08 
3 
.62 
2 
.16 
Vegetable Food (Seeds) 
Leguminosae 
2 
.20 
1 
1.00 
1 
.25 
2 
.96 
1 
.02 
1 
.32 
2 
.03 
T 
.02 
2 
.57 
Composite 
Polygonum 
2 
.01 
1 
.08 
Wheat 
1 
.75 
Setaria 
"2 
.20 
"2 
.16 
Corn 
3 
.62 
4 
22 
GENERA AND SPECIES RECOGNIZED IN THE FOOD. 
The following lists are intended to supplement the preceding 
tables and, taken together with them, to present all the details 
concerning the food of the birds observed in the orchard, upon 
which the foregoing discussion is based. In the first list the genera 
and species recognized in the food of each kind of bird are 
given separately ; in the second the food elements are systemati- 
cally arranged, and against the name of each element the names 
of all the species of birds are placed in whose food that element 
was recognized. The figures preceding the names of the birds 
in the second list indicate the number of individuals in which the 
given element was found : 
TURDIDiE. 
Turdus migratorius * Helix, Hyalina, Limnea humilis, Formica, 
Nephelodes violans, Anisopteryx vernata, Elaphrus ruscarius, 
Staphylinus badipes, Aphodius, A. inquinatus, Phyllo- 
4 
