. Bulletin (Pennsylvania Game Commision), no. 7. Game protection; Birds. M 16. Photograph Ity Robert J. Sim, RiviTton, N. J. XIGHTHAWK OR BULL-BAT BROODING YOUNG A beneficial bird which captures insects on the wing. in the crevices, and for larvae and other forms of various wood- borers, for which they sometimes ha\e to work considerably. Flv- catchers capture insects principally on the wing, but they capture the species which inhabit woodlands, and which the Swallows and Swifts would likely never see. Warblers, Vireos, Tanagers and other arboreal birds search the leaves and outer twigs for sm
. Bulletin (Pennsylvania Game Commision), no. 7. Game protection; Birds. M 16. Photograph Ity Robert J. Sim, RiviTton, N. J. XIGHTHAWK OR BULL-BAT BROODING YOUNG A beneficial bird which captures insects on the wing. in the crevices, and for larvae and other forms of various wood- borers, for which they sometimes ha\e to work considerably. Flv- catchers capture insects principally on the wing, but they capture the species which inhabit woodlands, and which the Swallows and Swifts would likely never see. Warblers, Vireos, Tanagers and other arboreal birds search the leaves and outer twigs for small insects; Cuckoos plunder the webs of caterpillars; Thrushes and some Sparrows and Warblers patrol the forest floor; Meadowlarks. Blackbirds and similarly built species are more or less confined to the open fields, and there are particular species which as a rule are to be found in our yards, or the orchard, or the truck garden. Thus the farmer, forester, or gardener who is interested in ])articu- lar problems of insect control may learn to depend on the aid of cer- tain species of birds. The potato-grower learns that Rose-breasted Grosbeaks, Bobwhites, Ring-necked Pheasants and Wild Turkeys cat potato beetles; the orchardist that Black-billed and Yellow-billed Cuckoos, Baltimore Orioles, and others may be depended upon to destroy caterpillars; the farmer, that Meadowlarks, Robins and even the oft-maligned Bronzed and Purple Grackles. destroy a great manv cut-worms, and that some Hawks and Owls are almost confined in their food habits to capturing mice or grasshoppers! ^' 17 Our study of the vast and intricate relationships in nature is still in its infancy. But we have gone far enough to know that food habits of birds are variable not only throughout the year but also in different sections, and that the truly w^ide-awake farmer must himself determine to what extent his birds are helping or hindering him. But his finding Bronzed or Purple Grackles in a young corn field, or e
Size: 1932px × 1293px
Photo credit: © Book Worm / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1900, bookdecade1910, booksubjectbirds, bookyear1911
