. Elementary agriculture. Agriculture. BIRDS 81 that for every quart of fruit he eats, he consumes, by measure, a quart and a half of black olive scales, a quart of flower beetles, and a large quantity of codling moth babies and eankerworms. If this is true, he certainly saves much more fruit than he destroys. Policemen of the Air. Some one has called the birds the little policemen of the air, because they protect us from the robber bugs and caterpillars. Insects make up nine-tenths of the animal life of the world, and it has been estimated that a bird will destroy thirty insects daily, so he
. Elementary agriculture. Agriculture. BIRDS 81 that for every quart of fruit he eats, he consumes, by measure, a quart and a half of black olive scales, a quart of flower beetles, and a large quantity of codling moth babies and eankerworms. If this is true, he certainly saves much more fruit than he destroys. Policemen of the Air. Some one has called the birds the little policemen of the air, because they protect us from the robber bugs and caterpillars. Insects make up nine-tenths of the animal life of the world, and it has been estimated that a bird will destroy thirty insects daily, so he is a very valuable little policeman. Eating Weed Seeds. Another great foe of the farmer is weeds. In one state alone the tree spar- rows are reported to have eaten eight hundred seventy-five tons of weed seed in one season. This included smartweed, rag- weed, bindweed, crab grass, and many others. The bobolink and meadow lark destroy many in- sect enemies of the crops and untold quantities of weed seed. (Figs. 49 and 50.) Big Appetites. Birds need a great deal of food, because thev .. rm J n .i' Fic. 51'. Mai:inq friends are so active. They eat all the of the Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Nida, William Lewis. Chicago, A. Flanagan Company
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectagriculture, bookyear
