. The book of birds : common birds of town and country and American game birds . rm and oneof the greatest insect destroyers. From day-light to dark on tireless wings it seeks its prey,and the insects destroyed are countless. Itsfavorite nesting site is a barn rafter, uponwhich it sticks its mud basket. Most modernbarns are so tightly constructed that swallowscannot gain entrance, and in New England andsome other parts of the country barn swallowsare much less numerous than formerly. Farm-ers can easily provide for the entrance and exitof the birds and so add materially to theirnumbers. It may
. The book of birds : common birds of town and country and American game birds . rm and oneof the greatest insect destroyers. From day-light to dark on tireless wings it seeks its prey,and the insects destroyed are countless. Itsfavorite nesting site is a barn rafter, uponwhich it sticks its mud basket. Most modernbarns are so tightly constructed that swallowscannot gain entrance, and in New England andsome other parts of the country barn swallowsare much less numerous than formerly. Farm-ers can easily provide for the entrance and exitof the birds and so add materially to theirnumbers. It may be well to add that the para-sites that sometimes infest the nests of swal-lows are not the ones the careful housewifedreads, and no fear need be felt of the infesta-tion spreading to the houses. Insects taken onthe wing constitute the almost exclusive dietof the barn swallow. More than one-third ofthe whole consists of flies. Beetles stand nextin order and consist of many of the small dungbeetles of the May-beetle family that swarmover the pastures in the late afternoon. 12.
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Keywords: ., bookcentury1900, bookdecade1920, booksubjectbirds, bookyear1921
