. Economic value of the starling in the United States . BULLETIN No. 868 Contribution from the Bureau of Biological Survey,E. W. NELSON, Washington, D. C. PROFESSIONAL PAPER January 10, 1921 ECONOMIC VALUE OF THE STARLING IN THEUNITED STATES By E. R. Kalmbach and I. N. Gabrielson, Assistant Biologists. CONTENTS. Problems raised by the starling Sources of information Distribution and abundance Description Life history Economic status in other countries. Food habits in the United Animal food of adults Insects Millipeds Spiders Mollusks Miscellaneous animal food
. Economic value of the starling in the United States . BULLETIN No. 868 Contribution from the Bureau of Biological Survey,E. W. NELSON, Washington, D. C. PROFESSIONAL PAPER January 10, 1921 ECONOMIC VALUE OF THE STARLING IN THEUNITED STATES By E. R. Kalmbach and I. N. Gabrielson, Assistant Biologists. CONTENTS. Problems raised by the starling Sources of information Distribution and abundance Description Life history Economic status in other countries. Food habits in the United Animal food of adults Insects Millipeds Spiders Mollusks Miscellaneous animal food of adults Cherries Berries Apples Pears and peaches Grapes Com habits in the United States— food of adults—Continued. Small grain 34 Garden truck 34 Wild fruit 35 Miscellaneous vegetable food 37 Food of nestlings 37 Observations from blind 39 Stomach examination 40 Animal food 41 Vegetable food , . 43 Food preferences at different ages. .. 44 Relation to other species of birds 46 Natural enemies 53 Eradication of roosts 54 Control measures 56 Legislation 57 Summary of evidence 57 Conclusion 59 PROBLEMS RAI
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Keywords: ., bookcentury1900, bookdecade1920, booksubjectbirds, bookyear1921
