Publisher's Synopsis
Excerpt from Index to Papers Relating to the Food of Birds by Members of the Biological Survey in Publications of the United States Department of Agriculture, 1885-1911
In the 26% years of its existence, from July 1, 1885, to December 31, 1911, members of the Biological Survey have prepared 131 documents relating Wholly or in part to the food of birds. These publications contain notes on the economic status of no fewer than 401 species of native birds and 59 species of foreign or introduced birds. (see table.) In the case of 173 species of native birds and one introduced bird, reports embodying a resume of printed and communicated testi mony concerning the food, together With detailed analyses of stomach contents, have been published. These are the most important state ments of the economic value of our birds.
Number of species of birds receiving economic consideration.
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