116 
BIRDS 
Agriculture. Fisher re¬ 
ports the following re¬ 
sults in his analysis of the 
stomach contents of 220 
red-shouldered hawks: 3 
contained poultry; 12 
held 102 mice; 40, other 
mammals ; 20, reptiles ; 
39, amphibians; 92, in¬ 
sects ; and 16, spiders. 
A similar analysis of 133 
stomachs of Cooper’s- 
hawks shows the follow¬ 
ing : 34 of the stomachs 
contained poultry or game birds ; 52, other birds ; 11, mam¬ 
mals ; 1, a frog; 3, lizards; 2, insects, while 39 were empty. 
Aside from being of value in the destruction of insects, 
birds destroy waste matter and dead animals lying on the 
ground. The vultures 
and buzzards of the South 
and West eat dead ani¬ 
mals. The gulls of the 
sea and lakes destroy 
refuse thrown upon the 
surface of the water. 
The eagle is also a scaven¬ 
ger, as it eats dead fish 
that float on the surface 
of the water, or small 
dead animals lying in the 
open on the land. Crows 
also eat dead fish. 
There is a group of 
birds that [lives largely 
on seed, and such birds 
Figure 104 . —Junco. 
A transient bird nesting in Canada and 
on the high hills and mountains of the 
Northern States. Beak is adapted for 
breaking small seeds. 
