The Horned Larks and Their Relation to Agriculture . succumb to its action. Cherry pits, which tire very bard and of ashape most difficult to crush, are broken; minute seeds, such as those ofamaranth and oxalis tire ground up. and their fragments in the stomachresemble m\ pepper. Among the weeds the seeds of which furnishgrist for these destructive mills are some of the worst pests in thecountry. Of a list of LOO weeds which tire regarded as the mosttroublesome in the United States, the seeds of no fewer than 38 areincluded in the diet of these birds. Of this number the foxtail grasses,smart w
The Horned Larks and Their Relation to Agriculture . succumb to its action. Cherry pits, which tire very bard and of ashape most difficult to crush, are broken; minute seeds, such as those ofamaranth and oxalis tire ground up. and their fragments in the stomachresemble m\ pepper. Among the weeds the seeds of which furnishgrist for these destructive mills are some of the worst pests in thecountry. Of a list of LOO weeds which tire regarded as the mosttroublesome in the United States, the seeds of no fewer than 38 areincluded in the diet of these birds. Of this number the foxtail grasses,smart weeds, bindweeds, amaranth, pigweeds, purslane, ragweed, andthe crab and bam grasses are conspicuous. The seeds of foxtail headthe list, being found in 347 stomachs examined. Over 300 birds hadeaten the seeds of amaranth dig. B) and nearly 260 those of pigweed. Covillc. in Farmers Bulletin No. 28 (Weeds; and how to kill them; hy I, |». 3, L895. Bull. 23, Biological Survey, U. S Dept. of Agriculture. * € « $ Plate II. <t C • If. • •• i
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