. The American natural history; a foundation of useful knowledge of the higher animals of North America. Natural history. GREAT VALUE OF PERCHING BIRDS 259 insect food, and can subsist on no other kind. Next in im- portance, and for the longest period, perhaps, come seeds and grain, especially the seeds of weeds that are a pest to the farmer. As a rule, fruit is taken in its brief season more as a dessert than as a staff of life. Scapulars Secondaries Trim&rves .J^tiddle I ..../.. Greaxer I. Covetts, THE PARTS AND PLUMAGE OF A PERCHING BIRD. A very few species, like the crow, magpie and ja
. The American natural history; a foundation of useful knowledge of the higher animals of North America. Natural history. GREAT VALUE OF PERCHING BIRDS 259 insect food, and can subsist on no other kind. Next in im- portance, and for the longest period, perhaps, come seeds and grain, especially the seeds of weeds that are a pest to the farmer. As a rule, fruit is taken in its brief season more as a dessert than as a staff of life. Scapulars Secondaries Trim&rves .J^tiddle I ..../.. Greaxer I. Covetts, THE PARTS AND PLUMAGE OF A PERCHING BIRD. A very few species, like the crow, magpie and jay, eat meat whenever opportunity offers it, and welcome the discovery of raw meat or eggs. The great value of the perching birds lies in the enormous quantities of insects which they consume as food.^ These 1 The Biological Survey of the United States Department of Agriculture has published many important bulletins and short papers on the food habits of our birds, with especial reference to the species either most beneficial or most harmful to the farmer and fruit-grower. A list of those now available, and the terms on which they are procurable, will be furnished by the Department upon 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 Hornaday, William Temple, 1854-1937. New York, C. Scribner's Sons
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