172 BIBLIOGRAPHY OF ECONOMIC RELATIONS OF BIRDS 
pillars, of which, contrary to the usual habits of birds, hairy 
species were in majority. The percentage of Orthoptera 
ranged from 3 per cent, in May to 43 in July, mostly arboreal 
forms, and there were from 5 to 6 1-2 per cent, of miscella- 
neous insects, beetles and bugs respectively. No particular 
support was found to the accusation that they are in the 
habit of sucking eggs of other birds. 
1898. Beal, F. E. L. Birds and Farm Pests. Popular Sci- 
ence Monthly, v. LII, p. 13b. 
Short but comprehensive article on birds relative to what 
insects they eat. Those which by his own methods are most 
easily obtained, etc. 
1898. Butler, Amos W. The Birds of Indiana. Twenty- 
second Annual Report State Geologist of Indiana, pp. 
515-1 187. 
A descriptive catalogue of the birds that have been observed 
within the state, with an account of their habits. Much 
information as to food. 
1898. Birds and Trees. Audubon Society of the State of 
Connecticut. t 
A four-page pamphlet containing selections suitable for 
bird day. 
1898. Brewster, Wm. The Short-eared Owls of Muskeget 
Island. The Auk, v. XV, pp. 211-213. 
“ Bird protectors would do well to study more closely the 
balance of nature.” Notes on Owls of Muskeget Island. 
1898. Cram, Wm. Everett. Woodpeckers and Their Ways. 
Popular Science Monthly, v. LIII, p. 339. 
Eating aphides in fall. 
1898. Ditcher, Wm. (Chairman). Report of the A. O. U. 
Committee on Protection of North American Birds. 
The Auk, v. XV, pp. 81-114. 
An extended discussion showing work in the different 
states, with general recommendations. 
1898. Hornaday, W. T. The Destruction of Our Birds and 
Mammals. Second Annual Report of the New York 
Zoological Society, pp. 77-126. 
