22 INDEX TO PAPEES KELATIETG TO EOOD OP BIEDS. 



Notes on the depredations of blackbirds and gophers in northern 

 Iowa and southern Minnesota in the fall of 1887. By Dr. A. K. 

 Fisher [birds, pp. 454-455]. 

 This report is supplementary to the last, dealing with the habits of the birds 



in fall and estimating the percentage of destruction, while Mr. Bailey described 



the depredations that occurred in spring. 



Report of the ornithologist and mammalogist. By C. Hart Merriam. 



pp. 477-484. 

 Describes the progress of work on various economic projects and gives an 

 example of one of the labels used on a collection exhibited at the Centennial 

 Exposition of the Ohio Valley # and Central States, Cincinnati, July-November, 

 1888, which contains a brief statement of the food of the red-tailed hawk. 



Introduced pheasants. By Dr. C. Hart Merriam. pp. 484-488. 



This paper gives an account of the introduction of pheasants and sand 

 grouse into Oregon and Washington. Notes on damage to field and garden crops 

 apparently pertain solely to the ring pheasant (Phasianus torquatus). 



The sparrow hawk (Falco sparverius) . By Dr. A. K. Fisher, pp. 

 491-496. 1 fig. 



A review of the testimony of observers as to the economic value of the spar- 

 row bawk, together with a report upon the examination of 163 stomachs. 



The short-eared owl (Asio accipitrinus) . By Dr. A. K. Fisher, pp. 

 496^98. 1 fig. 

 Summarizes the recorded observations upon this bird's food and states 

 briefly the results of 50 stomach examinations. 



The food of crows. By Walter B. Barrows, S. B. pp. 498-535. 



This is a preliminary presentation of the material elaborated later in Bulle- 

 tin 6 of the Biological Survey. Both the common crow (Corvus brachi/rhi/nchos) 

 and the fish crow (Corvus ossifragus) are treated, and the results of examina- 

 tion of 86 stomachs of the former and 12 of the latter are given. The economic 

 relations of crows are discussed under the following headings: Injury to corn, 

 wheat, and other cereals; damage to other crops; other vegetable food; the 

 distribution of noxious seeds ; the destruction of the eggs and young of poultry 

 and wild birds; insect food; the crow as an enemy of field mice and other 

 small quadrupeds; miscellaneous animal food; and the crow as a scavenger. 



The rose-breasted grosbeak {Habia ludovicana). An enemy to the 

 Colorado beetle or potato bug. [By W. B. Barrows.] pp. 

 535-536. 



Compiles field observations on this point and emphasizes value of the bird. 



Report of ornithologist and mammalogist. By C. Hart Merriam. 

 pp. 363-370. 

 Contains references to the food of several species of birds then being inves- 

 tigated by the division. 



