The Rôle of Vertebrates in the Control of Insect Pests |
Common terms and phrases
abundant Acadian Ent alfalfa weevils army worm attack Biological Survey bird enemies blackbirds brown-tail Bull Bureau of Entomology C. V. Riley CALIFORNIA GULL chipping sparrows cocoons codling moth control by birds cricket crops crows cutworms destroyed destruction devoured ducks E. H. Forbush eaten economic ornithology effective enemies English sparrows entirely entomologist extermination extirpated fall webworm feeding freely flock food habits food of birds grasshoppers green bugs hairy woodpecker highly insectivorous important enemies infested insect pest insectivorous birds instance of control J. M. Swaine larvæ Leopold Trouvelot Lepidoptera linden-moth Massachusetts Mormons mosquitoes number of insects observed orchard outbreaks parasites pest Prof protection recorded Rocky Mountain locust S. A. Forbes says shrew skunks Slingerland Smithsonian Report species of birds spruce stomach tent caterpillar termites Tothill Townend Glover trees U. S. Bur U. S. Dept Utah value of birds vast number vertebrates white grubs wireworms writer