BIBLIOGRAPHY OF ECONOMIC RELATIONS OF BIRDS 169 
mast, the amount of fruit and cereals being small. In cer- 
tain seasons of the year many insects were eaten, few of them 
beneficial. But a very small percentage of the whole con- 
sisted of vertebrate remains, thus giving little support to the 
reports of damage done by eating small birds, nor were birds’ 
eggs eaten to any extent. The relative proportions of the 
various foods varied remarkably from season to season. 
1897. Beal, F. E. L. Some Common Birds in their Relation 
to Agriculture. U. S. Department of Agriculture, 
Farmer’s Bulletin, No. 54. 
A short popular discussion of the food habits of a num- 
ber of birds of more or less importance to the farmer. Treats 
of the black and the yellow-billed cuckoos; the downy, 
golden-winged, hairy, red-shafted, and red-headed wood- 
peckers; the yellow-bellied woodpecker or sapsucker; the 
kingbird; the phcebe; the blue jay; the bobolink or rice 
bird; the red-winged blackbird; the meadow lark or old field 
lark; the Baltimore oriole; the crow blackbird; the song, 
chipping, field, and tree sparrows; the snowbird; the rose- 
breasted grosbeak, the barn, cliff, and white-bellied swal- 
lows, and the martin; the cedar bird; the catbird; the 
brown thrasher; the house wren; the robin; and the blue- 
bird. Most of these species are shown to be highly benefi- 
cial in their feeding habits. 
1897. Bruner, L. The Birds of Nebraska. Nebraska State 
Horticultural Society Report, 1896, pp. 98-178, 51 
figures. 
Notes on the distribution, food habits, etc., of birds of Ne- 
braska, with list of forms found within the state. Corrected 
to April, 1896. 
1897. Dutciier, Wm. Report of A. 0. U. Committee on Pro- 
tection of North American Birds. The Auk, v. XIV, 
pp. 21-32. 
Report of progress during the year. 
1897. Grinnell, Joseph. Disgorgement among Song Birds. 
The Auk, v. XJY, p. 318. 
Robins and cedar birds disgorge seeds of pepper tree. 
1897. Jones, Lynds. The Oberlin Grackle Roost. The Wil- 
son Bulletin, v. IX, O. S. Bulletin No. 15, July 30, 
1897, pp. 39-56. 
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