BIBLIOGRAPHY OF ECONOMIC RELATIONS OF BIRDS 
173 
A circular letter of inquiry was sent to persons in various 
states and territories, and the results here given. The sub- 
jects for investigation were the per cent, of decrease of birds 
in various localities, and the causes for such decrease. The 
results are given in detail. 
1898. Helps to Bird Study. Massachusetts Audubon Society, 
1898. 
A pamphlet of thirty-two pages giving selections in prose 
and verse helpful for bird day programmes. 
1898. Judd, Sylvester I). The Food of Shrikes. U. S. 
Division of Biological Survey, Bulletin 9, pp. 15-26. 
General notes on North American shrikes, followed by an 
account of the examination of 155 stomachs of both species. 
So far as could be determined from the stomachs of 67 
butcher birds the food closely resembled the sparrow hawk. 
About 26 per cent, of the food consisted of mice, 34 per cent, 
of small birds, including many English sparrows, consisting 
almost wholly of seed-eating species, and the remainder of 
insects, mostly grasshoppers. The food of the loggerhead 
differs in the much smaller percentage of mice and birds, 
about 24 per cent. The insects eaten consist largely of 
Orthoptera, and in the spring of beetles, many of them pre- 
daceous species. Both the butcher bird and loggerhead eat, 
to some extent, caterpillars. 
1898. Kellicott, I). S. Feeding Habits of Winter Birds of 
Interior Ohio. Journal Columbus Horticultural Society, 
v. XIII, pp. 45-51. 
A brief discussion of feeding habits with list of winter res- 
idents. 
1898. Lazenby, Wm. R. Presence the Birds. Journal Co- 
lumbus Horticultural Society, v. XIII, pp. 44, 45. 
A brief discussion of benefits of birds and methods of pro- 
tecting them. 
1898. Merriam, Florence A. Birds of Village and Field. A 
bird book for beginners. Boston : Houghton, Mifflin A 
Co.. 1898. 
A book of 406 pages with 220 illustrations, with considera- 
ble attention to the economic relations of the birds discussed. 
1898. Nasii, Charles W. The Birds of Ontario in Relation 
to Agriculture. Toronto: Department of Agriculture, 
1898, p. 64. 
