No. 21. PENNSYLVANIA STATE COLLEGE. : 265 
of the famous Krie grape belt testifying to the serious damage done 
to grapes by insects, particularly rosebugs, and different kinds of 
birds, chiefly English sparrows. About 12,000 acres are devoted to 
grape culture in Erie county, along the lake shore, and it is estimated 
that the insects, parasitic fungi and birds annually cause many thou- 
sands of dollars loss to the Erie vineyardists. 
The illustrations of the hawks and the owl in this paper have been 
reproduced from Dr. A. K. Fisher’s particularly valuable publication 
“Hawks and Owls of the United States,’ published as Bulletin No. 
3 of the National Agricultural Department, Washington, D. C. 
4 
