Excerpt from Observations on the Birds of Argentina, Paraguay, Uruguay, and Chile The successful operation of the Federal Migratory Bird Treaty in according protection, hitherto uncertain, to migratory game and insectivorous birds, with resultant increase in many species, led naturally to inquiries regarding the present status of birds that migrate in winter beyond our borders. Particularly was this the case with those species, mainly shore birds, that pass south into the southern portion of the South American Continent. ...
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Excerpt from Observations on the Birds of Argentina, Paraguay, Uruguay, and Chile The successful operation of the Federal Migratory Bird Treaty in according protection, hitherto uncertain, to migratory game and insectivorous birds, with resultant increase in many species, led naturally to inquiries regarding the present status of birds that migrate in winter beyond our borders. Particularly was this the case with those species, mainly shore birds, that pass south into the southern portion of the South American Continent. To gather first hand information on the questions involved the Biological Survey, United States Department of Agriculture, in May, 1920, dispatched the writer to Argentina with instructions to carry on the desired observations. During the extended period of field work incident to such a task there was abundant Opportunity to make representative collections of native birds and to record many points of interest concerning their distribution and habits. Since observation of shore birds was the main object in mind, travel was restricted largely to the level sections where suitable shores and marshes were available, so that collections were made in the main in the lowlands. The area covered extended from north ern Paraguay south to northern Patagonia, and from the eastern border of Uruguay west to the foothills of the Andes in Mendoza, and included a limited section near Valparaiso, Chile. Points for work were chosen carefully to allow comprehensive survey of as large an area as practicable. Studies of the specimens secured to gether with field observations, where pertinent, are presented here with in as much detail as is warranted. For assistance while in South America, thanks are due especially to Dr. Roberto Dabbene of the Museo Nacional in Buenos Aires. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at ... This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.
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